[1] Kidney disease in man is caused by the pollutant -
A.
Cadmium
B.
Iron
C.
Cobalt
D.
Carbon
Ans:
Cadmium
Explanation :
Cadmium (Cd), a by-product of zinc production, is one of the most toxic elements to which man can be exposed at work or in the environment. Once absorbed, Cd is efficiently retained in the human body, in which it accumulates throughout life. Cd is primarily toxic to the kidney, especially to the proximal tubular cells, the main site of accumulation. Cadmium accumulates in the kidneys and may sometimes cause kidney failure when it is in excess.
[2] Fruits of this plant are found underground -
A.
Potato
B.
Carrot
C.
Groundnut
D.
Onion
Ans:
Groundnut
Explanation :
The peanuts, or groundnut (Arachishypogaea), is a species in the legume "bean" family (Fabaceae). The cultivated peanut was probably first domesticated in the valleys of Peru. It is an annual herbaceous plant growing tall.
[3] A rare and endangered animal in Silent Valley is -
A.
Musk deer
B.
Tiger
C.
Lion-tailed macaque
D.
Rhinosores
Ans:
Lion-tailed macaque
Explanation :
Among the more significant inhabitants of the silent valley forests are the lion tailed macaque which is on list of endangered animal and the Silent Valley is one of their habitats on earth. The lion tailed macaque is one of the most endangered primates of India, confined in distribution to the rainforests of southern Western Ghats. Habitat specialists, they have adapted themselves to the evergreen environments available in the south Indian states of Kerala, Karnataka and Tamil Nadu.
[4] The main cause of rancidity in of fats and foods is the oils -
A.
hydrolysis
B.
oxidation
C.
clarification
D.
reduction
Ans:
oxidation
Explanation :
Rancidification is the process of complete or incomplete oxidation or hydrolysis of fats and oils when exposed to air, light, or moisture or by bacterial action, resulting in unpleasant taste and odor.
[5] The part of the brain responsible for maintain balance like walking in a straight line or riding a bicycle is called -
A.
Medulla
B.
Pons
C.
Pituitary Gland
D.
Cerebellum
Ans:
Cerebellum
Explanation :
These functions are made possible due to a part of the hind-brain called the cerebellum. It is responsible for precision of voluntary actions.
[6] The hybrid between horse and donkey is called -
A.
Pony
B.
Colt
C.
Mule
D.
Zebra
Ans:
Mule
Explanation :
The Mule is a cross between a donkey stallion (called a jack) and a horse mare. Mules ears are usually somewhat smaller than a donkeys, longer but the same shape as the horse parents. The mule's conformation will be a combination of traits from both parents. The head, hip and legs usually take after the jack. Mules do not have pronounced arches to the neck, even from breeds such as Arabians or Warm bloods. A slight arch or straight neck is preferable to a ewe, or upward curved neck.
[7] Which of the following is not a member of the vitamin B complex?
A.
Thiamine
B.
Riboflavin
C.
Folic acid
D.
Ascorbic acid
Ans:
Ascorbic acid
Explanation :
Vitamin B complex consists of 8 vitamins namely B1, B2, B3, B5, B6, B7, B9 and B12. Vitamin B1 is Thiamine, Vit B2 is Riboflavin, Vit B3 is Niacin, Vit B5 is pantothenic acid, Vit B6 is pyridoxine, biotin, folic acid and Vit B12 is cyanocobalamin.
[8] Cystitis is the infection of which of the following?
A.
liver
B.
urinary bladder
C.
pancreas
D.
lung
Ans:
urinary bladder
Explanation :
Cystitis is an infection of the urinary tract that is caused by bacteria. Anyone can develop cystitis, although it is more common in women.
[9] Which of the following makes the skin layer impervious to water?
A.
Collagen
B.
Melanin
C.
Keratin
D.
Chitin
Ans:
Keratin
Explanation :
Keratin is a family of fibrous structural proteins. Keratin is the key structural material making up the outer layer of human skin. It is also the key structural component of hair and nails. Keratin monomers assemble into bundles to form intermediate filaments, which are tough and insoluble and form strong un-mineralized tissues found in reptiles, birds, amphibians, and mammals. Cells in the epidermis contain a structural matrix of keratin, which makes this outermost layer of the skin almost waterproof, and along with collagen and elastin, gives skin its strength.
[10] 'ELISA' test is employed to diagnose -
A.
Polio virus
B.
AIDS antibodies
C.
Tuberculosis bacterium
D.
Cancer
Ans:
Tuberculosis bacterium
Explanation :
ELISA is an abbreviation for "enzymelinked immunosorbent assay." An ELISA test uses components of the immune system and chemicals to detect immune responses In the body (for example, to infectious microbes).
[11] The body temperature is regulated by —
A.
Pituitory gland
B.
Hypothalamus
C.
Pineal gland
D.
Thyroid gland
Ans:
Hypothalamus
Explanation :
Hypothalamus is a portion of the brain that contains a number of small nuclei with a variety of functions. One of the most important functions of the hypothalamus is to link the nervous system to the endocrine system via the pituitary gland (hypophysis). The hypothalamus is responsible for certain metabolic processes and other activities of the autonomic nervous system. It synthesizes and secretes certain neurohormones, often called hypothalamic-releasing hormones, and these in turn stimulate or inhibit the secretion of pituitary hormones. The hypothalamus controls body temperature, hunger, thirst, fatigue, sleep, and circadian cycles.
[12] The study of extinct animals is called -
A.
Herpetology
B.
Ornithology
C.
Geology
D.
Palaeontology
Ans:
Palaeontology
Explanation :
Paleontology is the study of fossils to determine the structure and evolution of extinct animals and plants and the age and conditions of deposition of the rock strata in which they are found. It includes the study of fossils to determine organisms' evolution and interactions with each other and their environments (their paleoecology). As a "historical science" it attempts to explain causes rather than conduct experiments to observe effects. Palaeontological observations have been documented as far back as the 5th century B.C.E.
[13] The medical term used for the sleeplessness is -
A.
Somnambulism
B.
Insomnia
C.
Hallucination
D.
Nyctinuria
Ans:
Insomnia
Explanation :
Insomnia, or sleeplessness, is a sleep disorder in which there is an inability to fall asleep or to stay asleep as long as desired. It is most often thought of as both a sign and a symptom that can accompany several sleep, medical, and psychiatric disorders characterized by a persistent difficulty falling asleep and/or staying asleep or sleep of poor quality. Insomnia is typically followed by functional impairment while awake. Insomnia can occur at any age, but it is particularly common in the elderly.
[14] Which one of the following creatures has maximum number of ribs?
A.
Crocodile
B.
Snake
C.
Ray fish
D.
Flying mammal
Ans:
Snake
Explanation :
Snakes have the maximum number of ribs. On an average they have 200 to 400 bones (Vertibrae) and each have a pair of ribs on either side.
[15] Which one of the following is most important for the growth of children up to the age of 14?
A.
Protein
B.
Vitamin
C.
Fat
D.
Milk
Ans:
Protein
Explanation :
Protein is a vital part of a healthy diet for children. This substance, though important for all people, is especially necessary for developing and growing bodies. Protein is used as a source of energy, especially when carbohydrates and fats are at insufficient levels in the diet. In addition, a child needs adequate protein to support the body's production of its own proteins. The manufactured proteins are used in strength maintenance, development of muscles and connective tissues, transportation of oxygen to all areas of the body and antibody production to fight infections.
[16] Sweat glands in mammals are primarily concerned with -
A.
removal of excess salts
B.
excretion of nitrogenous wastes
C.
therrnoregulation
D.
sex-attraction
Ans:
therrnoregulation
Explanation :
Sweat glands, or sudoriferous glands, are small tubular structures of the skin that produce sweat. The cause of sweating and body odor stems from our body's temperature regulation system, specifically our sweat glands. Sweating helps maintain our body temperature, hydrates our skin and balances our body fluids and electrolytes, chemicals in our body such as sodium and calcium.
[17] DNA test was developed by -
A.
Dr. Alec Jeffreys
B.
Dr. V.K. Kashyap
C.
Watson and Crick
D.
Gregor Mendel
Ans:
Watson and Crick
Explanation :
A genealogical. DNA test looks at a person's genetic code at specific locations. Results give information about genealogy or personal ancestry. James D. Watson and Francis Crick are the two scientists who discovered the structure of DNA in 1953.
[18] An ECG shows the functioning of the -
A.
brain
B.
heart
C.
lungs
D.
kidneys
Ans:
heart
Explanation :
The electrocardiogram (ECG or EKG) is a diagnostic tool that is routinely used to assess the electrical and muscular functions of the heart. The heart is a two stage electrical pump and the heart's electrical activity can be measured by electrodes placed on the skin. The electrocardiogram can measure the rate and rhythm of the heartbeat, as well as provide indirect evidence of blood flow to the heart muscle.
[19] A vitamin requires cobalt for its activity. The vitamin is -
A.
Vitamin B12
B.
Vitamin D
C.
Vitamin B2
D.
Vitamin A
Ans:
Vitamin B12
Explanation :
Vitamin B12, vitamin B1, or vitamin B12, also called cobalarnin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. It is one of the eight B vitamins. It is normally involved in the metabolism of every cell of the human body, especially affecting DNA synthesis and regulation, but also fatty acid synthesis and energy production. Vitamin B12 consists of a class of chemically related compounds (vitamers), all of which have vitamin activity. It contains the biochemically rare element cobalt.
[20] Plasma membrane in eukaryotic cells is made up of -
A.
Phospholipid
B.
Lipoprotein
C.
Phospholipo-protein
D.
Phospho-protein
Ans:
Phospholipid
Explanation :
The cell membrane or plasma membrane is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings.
[21] The locomotory organ of 'Amoeba' is -
A.
Pseudopodia
B.
Parapodia
C.
Flagella
D.
Cilia
Ans:
Pseudopodia
Explanation :
Pseudopods or pseudopodia (singular: pseudopodium) are temporary projections of eukaryotic cells. Cells that possess this faculty are generally referred to as amoeboids. Pseudopodia extend and contract by the reversible assembly of actin subunits into microfilaments. Filaments near the cell's end interact with myosin which causes contraction. The pseudopodium extends itself until the actin reassembles itself into a network. This is how amoebas move, as well as some cells found in animals, such as white blood cells. They are most commonly found on eubacteria.
[22] The number of chromosomes present in normal human being are -
A.
23
B.
46
C.
22
D.
48
Ans:
46
Explanation :
A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions. Chromosomes in humans can be divided into two types: autosomes and sex chromosomes. Certain genetic traits are linked to a person's sex and are passed on through the sex chromosomes.
[23] The longest bone in the human body is -
A.
Ulna
B.
Humerus
C.
Femur
D.
Tibia
Ans:
Femur
Explanation :
The femur or thigh bone, is the most proximal (closest to the center of the body) bone of the leg in tetrapod vertebrates capable of walking or jumping, such as most land mammals, birds, many reptiles such as lizards, and amphibians such as frogs. In vertebrates with four legs such as dogs and horses, the femur is found only in the rear legs. The femur is the largest bone in the human body. The head of the femur articulates with the acetabulum. By most measures the femur is one of the strongest bones in the body.
[24] Which of the following is the smallest bird?
A.
Pigeon
B.
Parrot
C.
Humming bird
D.
House sparrow
Ans:
Humming bird
Explanation :
Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5-13 cm (3-5 in) range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird. They can hover in mid-air by rapidly flapping their wings 12- 80 times per second (depending on the species). They are known as hummingbirds because of the humming sound created by their beating wings, which sometimes sound like bees or other insects.
[25] The edible part of Cabbage is -
A.
fruit
B.
condensed flower
C.
vegetative bud
D.
inflorescence
Ans:
vegetative bud
Explanation :
In cabbage, the edible part is vegetative bud. Vegetative buds are buds from which vegetative parts like leaves and stems arise, rather than flowers. Enlarged buds or parts of buds form the edible portion of some horticultural crops. Cabbage and head lettuce are examples of unusually large terminal buds.
Explanation :
Cadmium (Cd), a by-product of zinc production, is one of the most toxic elements to which man can be exposed at work or in the environment. Once absorbed, Cd is efficiently retained in the human body, in which it accumulates throughout life. Cd is primarily toxic to the kidney, especially to the proximal tubular cells, the main site of accumulation. Cadmium accumulates in the kidneys and may sometimes cause kidney failure when it is in excess.
[2] Fruits of this plant are found underground -
A.
Potato
B.
Carrot
C.
Groundnut
D.
Onion
Ans:
Groundnut
Explanation :
The peanuts, or groundnut (Arachishypogaea), is a species in the legume "bean" family (Fabaceae). The cultivated peanut was probably first domesticated in the valleys of Peru. It is an annual herbaceous plant growing tall.
[3] A rare and endangered animal in Silent Valley is -
A.
Musk deer
B.
Tiger
C.
Lion-tailed macaque
D.
Rhinosores
Ans:
Lion-tailed macaque
Explanation :
Among the more significant inhabitants of the silent valley forests are the lion tailed macaque which is on list of endangered animal and the Silent Valley is one of their habitats on earth. The lion tailed macaque is one of the most endangered primates of India, confined in distribution to the rainforests of southern Western Ghats. Habitat specialists, they have adapted themselves to the evergreen environments available in the south Indian states of Kerala, Karnataka and Tamil Nadu.
[4] The main cause of rancidity in of fats and foods is the oils -
A.
hydrolysis
B.
oxidation
C.
clarification
D.
reduction
Ans:
oxidation
Explanation :
Rancidification is the process of complete or incomplete oxidation or hydrolysis of fats and oils when exposed to air, light, or moisture or by bacterial action, resulting in unpleasant taste and odor.
[5] The part of the brain responsible for maintain balance like walking in a straight line or riding a bicycle is called -
A.
Medulla
B.
Pons
C.
Pituitary Gland
D.
Cerebellum
Ans:
Cerebellum
Explanation :
These functions are made possible due to a part of the hind-brain called the cerebellum. It is responsible for precision of voluntary actions.
[6] The hybrid between horse and donkey is called -
A.
Pony
B.
Colt
C.
Mule
D.
Zebra
Ans:
Mule
Explanation :
The Mule is a cross between a donkey stallion (called a jack) and a horse mare. Mules ears are usually somewhat smaller than a donkeys, longer but the same shape as the horse parents. The mule's conformation will be a combination of traits from both parents. The head, hip and legs usually take after the jack. Mules do not have pronounced arches to the neck, even from breeds such as Arabians or Warm bloods. A slight arch or straight neck is preferable to a ewe, or upward curved neck.
[7] Which of the following is not a member of the vitamin B complex?
A.
Thiamine
B.
Riboflavin
C.
Folic acid
D.
Ascorbic acid
Ans:
Ascorbic acid
Explanation :
Vitamin B complex consists of 8 vitamins namely B1, B2, B3, B5, B6, B7, B9 and B12. Vitamin B1 is Thiamine, Vit B2 is Riboflavin, Vit B3 is Niacin, Vit B5 is pantothenic acid, Vit B6 is pyridoxine, biotin, folic acid and Vit B12 is cyanocobalamin.
[8] Cystitis is the infection of which of the following?
A.
liver
B.
urinary bladder
C.
pancreas
D.
lung
Ans:
urinary bladder
Explanation :
Cystitis is an infection of the urinary tract that is caused by bacteria. Anyone can develop cystitis, although it is more common in women.
[9] Which of the following makes the skin layer impervious to water?
A.
Collagen
B.
Melanin
C.
Keratin
D.
Chitin
Ans:
Keratin
Explanation :
Keratin is a family of fibrous structural proteins. Keratin is the key structural material making up the outer layer of human skin. It is also the key structural component of hair and nails. Keratin monomers assemble into bundles to form intermediate filaments, which are tough and insoluble and form strong un-mineralized tissues found in reptiles, birds, amphibians, and mammals. Cells in the epidermis contain a structural matrix of keratin, which makes this outermost layer of the skin almost waterproof, and along with collagen and elastin, gives skin its strength.
[10] 'ELISA' test is employed to diagnose -
A.
Polio virus
B.
AIDS antibodies
C.
Tuberculosis bacterium
D.
Cancer
Ans:
Tuberculosis bacterium
Explanation :
ELISA is an abbreviation for "enzymelinked immunosorbent assay." An ELISA test uses components of the immune system and chemicals to detect immune responses In the body (for example, to infectious microbes).
[11] The body temperature is regulated by —
A.
Pituitory gland
B.
Hypothalamus
C.
Pineal gland
D.
Thyroid gland
Ans:
Hypothalamus
Explanation :
Hypothalamus is a portion of the brain that contains a number of small nuclei with a variety of functions. One of the most important functions of the hypothalamus is to link the nervous system to the endocrine system via the pituitary gland (hypophysis). The hypothalamus is responsible for certain metabolic processes and other activities of the autonomic nervous system. It synthesizes and secretes certain neurohormones, often called hypothalamic-releasing hormones, and these in turn stimulate or inhibit the secretion of pituitary hormones. The hypothalamus controls body temperature, hunger, thirst, fatigue, sleep, and circadian cycles.
[12] The study of extinct animals is called -
A.
Herpetology
B.
Ornithology
C.
Geology
D.
Palaeontology
Ans:
Palaeontology
Explanation :
Paleontology is the study of fossils to determine the structure and evolution of extinct animals and plants and the age and conditions of deposition of the rock strata in which they are found. It includes the study of fossils to determine organisms' evolution and interactions with each other and their environments (their paleoecology). As a "historical science" it attempts to explain causes rather than conduct experiments to observe effects. Palaeontological observations have been documented as far back as the 5th century B.C.E.
[13] The medical term used for the sleeplessness is -
A.
Somnambulism
B.
Insomnia
C.
Hallucination
D.
Nyctinuria
Ans:
Insomnia
Explanation :
Insomnia, or sleeplessness, is a sleep disorder in which there is an inability to fall asleep or to stay asleep as long as desired. It is most often thought of as both a sign and a symptom that can accompany several sleep, medical, and psychiatric disorders characterized by a persistent difficulty falling asleep and/or staying asleep or sleep of poor quality. Insomnia is typically followed by functional impairment while awake. Insomnia can occur at any age, but it is particularly common in the elderly.
[14] Which one of the following creatures has maximum number of ribs?
A.
Crocodile
B.
Snake
C.
Ray fish
D.
Flying mammal
Ans:
Snake
Explanation :
Snakes have the maximum number of ribs. On an average they have 200 to 400 bones (Vertibrae) and each have a pair of ribs on either side.
[15] Which one of the following is most important for the growth of children up to the age of 14?
A.
Protein
B.
Vitamin
C.
Fat
D.
Milk
Ans:
Protein
Explanation :
Protein is a vital part of a healthy diet for children. This substance, though important for all people, is especially necessary for developing and growing bodies. Protein is used as a source of energy, especially when carbohydrates and fats are at insufficient levels in the diet. In addition, a child needs adequate protein to support the body's production of its own proteins. The manufactured proteins are used in strength maintenance, development of muscles and connective tissues, transportation of oxygen to all areas of the body and antibody production to fight infections.
[16] Sweat glands in mammals are primarily concerned with -
A.
removal of excess salts
B.
excretion of nitrogenous wastes
C.
therrnoregulation
D.
sex-attraction
Ans:
therrnoregulation
Explanation :
Sweat glands, or sudoriferous glands, are small tubular structures of the skin that produce sweat. The cause of sweating and body odor stems from our body's temperature regulation system, specifically our sweat glands. Sweating helps maintain our body temperature, hydrates our skin and balances our body fluids and electrolytes, chemicals in our body such as sodium and calcium.
[17] DNA test was developed by -
A.
Dr. Alec Jeffreys
B.
Dr. V.K. Kashyap
C.
Watson and Crick
D.
Gregor Mendel
Ans:
Watson and Crick
Explanation :
A genealogical. DNA test looks at a person's genetic code at specific locations. Results give information about genealogy or personal ancestry. James D. Watson and Francis Crick are the two scientists who discovered the structure of DNA in 1953.
[18] An ECG shows the functioning of the -
A.
brain
B.
heart
C.
lungs
D.
kidneys
Ans:
heart
Explanation :
The electrocardiogram (ECG or EKG) is a diagnostic tool that is routinely used to assess the electrical and muscular functions of the heart. The heart is a two stage electrical pump and the heart's electrical activity can be measured by electrodes placed on the skin. The electrocardiogram can measure the rate and rhythm of the heartbeat, as well as provide indirect evidence of blood flow to the heart muscle.
[19] A vitamin requires cobalt for its activity. The vitamin is -
A.
Vitamin B12
B.
Vitamin D
C.
Vitamin B2
D.
Vitamin A
Ans:
Vitamin B12
Explanation :
Vitamin B12, vitamin B1, or vitamin B12, also called cobalarnin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. It is one of the eight B vitamins. It is normally involved in the metabolism of every cell of the human body, especially affecting DNA synthesis and regulation, but also fatty acid synthesis and energy production. Vitamin B12 consists of a class of chemically related compounds (vitamers), all of which have vitamin activity. It contains the biochemically rare element cobalt.
[20] Plasma membrane in eukaryotic cells is made up of -
A.
Phospholipid
B.
Lipoprotein
C.
Phospholipo-protein
D.
Phospho-protein
Ans:
Phospholipid
Explanation :
The cell membrane or plasma membrane is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings.
[21] The locomotory organ of 'Amoeba' is -
A.
Pseudopodia
B.
Parapodia
C.
Flagella
D.
Cilia
Ans:
Pseudopodia
Explanation :
Pseudopods or pseudopodia (singular: pseudopodium) are temporary projections of eukaryotic cells. Cells that possess this faculty are generally referred to as amoeboids. Pseudopodia extend and contract by the reversible assembly of actin subunits into microfilaments. Filaments near the cell's end interact with myosin which causes contraction. The pseudopodium extends itself until the actin reassembles itself into a network. This is how amoebas move, as well as some cells found in animals, such as white blood cells. They are most commonly found on eubacteria.
[22] The number of chromosomes present in normal human being are -
A.
23
B.
46
C.
22
D.
48
Ans:
46
Explanation :
A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions. Chromosomes in humans can be divided into two types: autosomes and sex chromosomes. Certain genetic traits are linked to a person's sex and are passed on through the sex chromosomes.
[23] The longest bone in the human body is -
A.
Ulna
B.
Humerus
C.
Femur
D.
Tibia
Ans:
Femur
Explanation :
The femur or thigh bone, is the most proximal (closest to the center of the body) bone of the leg in tetrapod vertebrates capable of walking or jumping, such as most land mammals, birds, many reptiles such as lizards, and amphibians such as frogs. In vertebrates with four legs such as dogs and horses, the femur is found only in the rear legs. The femur is the largest bone in the human body. The head of the femur articulates with the acetabulum. By most measures the femur is one of the strongest bones in the body.
[24] Which of the following is the smallest bird?
A.
Pigeon
B.
Parrot
C.
Humming bird
D.
House sparrow
Ans:
Humming bird
Explanation :
Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5-13 cm (3-5 in) range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird. They can hover in mid-air by rapidly flapping their wings 12- 80 times per second (depending on the species). They are known as hummingbirds because of the humming sound created by their beating wings, which sometimes sound like bees or other insects.
[25] The edible part of Cabbage is -
A.
fruit
B.
condensed flower
C.
vegetative bud
D.
inflorescence
Ans:
vegetative bud
Explanation :
In cabbage, the edible part is vegetative bud. Vegetative buds are buds from which vegetative parts like leaves and stems arise, rather than flowers. Enlarged buds or parts of buds form the edible portion of some horticultural crops. Cabbage and head lettuce are examples of unusually large terminal buds.
Explanation :
Among the more significant inhabitants of the silent valley forests are the lion tailed macaque which is on list of endangered animal and the Silent Valley is one of their habitats on earth. The lion tailed macaque is one of the most endangered primates of India, confined in distribution to the rainforests of southern Western Ghats. Habitat specialists, they have adapted themselves to the evergreen environments available in the south Indian states of Kerala, Karnataka and Tamil Nadu.
[4] The main cause of rancidity in of fats and foods is the oils -
A.
hydrolysis
B.
oxidation
C.
clarification
D.
reduction
Ans:
oxidation
Explanation :
Rancidification is the process of complete or incomplete oxidation or hydrolysis of fats and oils when exposed to air, light, or moisture or by bacterial action, resulting in unpleasant taste and odor.
[5] The part of the brain responsible for maintain balance like walking in a straight line or riding a bicycle is called -
A.
Medulla
B.
Pons
C.
Pituitary Gland
D.
Cerebellum
Ans:
Cerebellum
Explanation :
These functions are made possible due to a part of the hind-brain called the cerebellum. It is responsible for precision of voluntary actions.
[6] The hybrid between horse and donkey is called -
A.
Pony
B.
Colt
C.
Mule
D.
Zebra
Ans:
Mule
Explanation :
The Mule is a cross between a donkey stallion (called a jack) and a horse mare. Mules ears are usually somewhat smaller than a donkeys, longer but the same shape as the horse parents. The mule's conformation will be a combination of traits from both parents. The head, hip and legs usually take after the jack. Mules do not have pronounced arches to the neck, even from breeds such as Arabians or Warm bloods. A slight arch or straight neck is preferable to a ewe, or upward curved neck.
[7] Which of the following is not a member of the vitamin B complex?
A.
Thiamine
B.
Riboflavin
C.
Folic acid
D.
Ascorbic acid
Ans:
Ascorbic acid
Explanation :
Vitamin B complex consists of 8 vitamins namely B1, B2, B3, B5, B6, B7, B9 and B12. Vitamin B1 is Thiamine, Vit B2 is Riboflavin, Vit B3 is Niacin, Vit B5 is pantothenic acid, Vit B6 is pyridoxine, biotin, folic acid and Vit B12 is cyanocobalamin.
[8] Cystitis is the infection of which of the following?
A.
liver
B.
urinary bladder
C.
pancreas
D.
lung
Ans:
urinary bladder
Explanation :
Cystitis is an infection of the urinary tract that is caused by bacteria. Anyone can develop cystitis, although it is more common in women.
[9] Which of the following makes the skin layer impervious to water?
A.
Collagen
B.
Melanin
C.
Keratin
D.
Chitin
Ans:
Keratin
Explanation :
Keratin is a family of fibrous structural proteins. Keratin is the key structural material making up the outer layer of human skin. It is also the key structural component of hair and nails. Keratin monomers assemble into bundles to form intermediate filaments, which are tough and insoluble and form strong un-mineralized tissues found in reptiles, birds, amphibians, and mammals. Cells in the epidermis contain a structural matrix of keratin, which makes this outermost layer of the skin almost waterproof, and along with collagen and elastin, gives skin its strength.
[10] 'ELISA' test is employed to diagnose -
A.
Polio virus
B.
AIDS antibodies
C.
Tuberculosis bacterium
D.
Cancer
Ans:
Tuberculosis bacterium
Explanation :
ELISA is an abbreviation for "enzymelinked immunosorbent assay." An ELISA test uses components of the immune system and chemicals to detect immune responses In the body (for example, to infectious microbes).
[11] The body temperature is regulated by —
A.
Pituitory gland
B.
Hypothalamus
C.
Pineal gland
D.
Thyroid gland
Ans:
Hypothalamus
Explanation :
Hypothalamus is a portion of the brain that contains a number of small nuclei with a variety of functions. One of the most important functions of the hypothalamus is to link the nervous system to the endocrine system via the pituitary gland (hypophysis). The hypothalamus is responsible for certain metabolic processes and other activities of the autonomic nervous system. It synthesizes and secretes certain neurohormones, often called hypothalamic-releasing hormones, and these in turn stimulate or inhibit the secretion of pituitary hormones. The hypothalamus controls body temperature, hunger, thirst, fatigue, sleep, and circadian cycles.
[12] The study of extinct animals is called -
A.
Herpetology
B.
Ornithology
C.
Geology
D.
Palaeontology
Ans:
Palaeontology
Explanation :
Paleontology is the study of fossils to determine the structure and evolution of extinct animals and plants and the age and conditions of deposition of the rock strata in which they are found. It includes the study of fossils to determine organisms' evolution and interactions with each other and their environments (their paleoecology). As a "historical science" it attempts to explain causes rather than conduct experiments to observe effects. Palaeontological observations have been documented as far back as the 5th century B.C.E.
[13] The medical term used for the sleeplessness is -
A.
Somnambulism
B.
Insomnia
C.
Hallucination
D.
Nyctinuria
Ans:
Insomnia
Explanation :
Insomnia, or sleeplessness, is a sleep disorder in which there is an inability to fall asleep or to stay asleep as long as desired. It is most often thought of as both a sign and a symptom that can accompany several sleep, medical, and psychiatric disorders characterized by a persistent difficulty falling asleep and/or staying asleep or sleep of poor quality. Insomnia is typically followed by functional impairment while awake. Insomnia can occur at any age, but it is particularly common in the elderly.
[14] Which one of the following creatures has maximum number of ribs?
A.
Crocodile
B.
Snake
C.
Ray fish
D.
Flying mammal
Ans:
Snake
Explanation :
Snakes have the maximum number of ribs. On an average they have 200 to 400 bones (Vertibrae) and each have a pair of ribs on either side.
[15] Which one of the following is most important for the growth of children up to the age of 14?
A.
Protein
B.
Vitamin
C.
Fat
D.
Milk
Ans:
Protein
Explanation :
Protein is a vital part of a healthy diet for children. This substance, though important for all people, is especially necessary for developing and growing bodies. Protein is used as a source of energy, especially when carbohydrates and fats are at insufficient levels in the diet. In addition, a child needs adequate protein to support the body's production of its own proteins. The manufactured proteins are used in strength maintenance, development of muscles and connective tissues, transportation of oxygen to all areas of the body and antibody production to fight infections.
[16] Sweat glands in mammals are primarily concerned with -
A.
removal of excess salts
B.
excretion of nitrogenous wastes
C.
therrnoregulation
D.
sex-attraction
Ans:
therrnoregulation
Explanation :
Sweat glands, or sudoriferous glands, are small tubular structures of the skin that produce sweat. The cause of sweating and body odor stems from our body's temperature regulation system, specifically our sweat glands. Sweating helps maintain our body temperature, hydrates our skin and balances our body fluids and electrolytes, chemicals in our body such as sodium and calcium.
[17] DNA test was developed by -
A.
Dr. Alec Jeffreys
B.
Dr. V.K. Kashyap
C.
Watson and Crick
D.
Gregor Mendel
Ans:
Watson and Crick
Explanation :
A genealogical. DNA test looks at a person's genetic code at specific locations. Results give information about genealogy or personal ancestry. James D. Watson and Francis Crick are the two scientists who discovered the structure of DNA in 1953.
[18] An ECG shows the functioning of the -
A.
brain
B.
heart
C.
lungs
D.
kidneys
Ans:
heart
Explanation :
The electrocardiogram (ECG or EKG) is a diagnostic tool that is routinely used to assess the electrical and muscular functions of the heart. The heart is a two stage electrical pump and the heart's electrical activity can be measured by electrodes placed on the skin. The electrocardiogram can measure the rate and rhythm of the heartbeat, as well as provide indirect evidence of blood flow to the heart muscle.
[19] A vitamin requires cobalt for its activity. The vitamin is -
A.
Vitamin B12
B.
Vitamin D
C.
Vitamin B2
D.
Vitamin A
Ans:
Vitamin B12
Explanation :
Vitamin B12, vitamin B1, or vitamin B12, also called cobalarnin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. It is one of the eight B vitamins. It is normally involved in the metabolism of every cell of the human body, especially affecting DNA synthesis and regulation, but also fatty acid synthesis and energy production. Vitamin B12 consists of a class of chemically related compounds (vitamers), all of which have vitamin activity. It contains the biochemically rare element cobalt.
[20] Plasma membrane in eukaryotic cells is made up of -
A.
Phospholipid
B.
Lipoprotein
C.
Phospholipo-protein
D.
Phospho-protein
Ans:
Phospholipid
Explanation :
The cell membrane or plasma membrane is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings.
[21] The locomotory organ of 'Amoeba' is -
A.
Pseudopodia
B.
Parapodia
C.
Flagella
D.
Cilia
Ans:
Pseudopodia
Explanation :
Pseudopods or pseudopodia (singular: pseudopodium) are temporary projections of eukaryotic cells. Cells that possess this faculty are generally referred to as amoeboids. Pseudopodia extend and contract by the reversible assembly of actin subunits into microfilaments. Filaments near the cell's end interact with myosin which causes contraction. The pseudopodium extends itself until the actin reassembles itself into a network. This is how amoebas move, as well as some cells found in animals, such as white blood cells. They are most commonly found on eubacteria.
[22] The number of chromosomes present in normal human being are -
A.
23
B.
46
C.
22
D.
48
Ans:
46
Explanation :
A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions. Chromosomes in humans can be divided into two types: autosomes and sex chromosomes. Certain genetic traits are linked to a person's sex and are passed on through the sex chromosomes.
[23] The longest bone in the human body is -
A.
Ulna
B.
Humerus
C.
Femur
D.
Tibia
Ans:
Femur
Explanation :
The femur or thigh bone, is the most proximal (closest to the center of the body) bone of the leg in tetrapod vertebrates capable of walking or jumping, such as most land mammals, birds, many reptiles such as lizards, and amphibians such as frogs. In vertebrates with four legs such as dogs and horses, the femur is found only in the rear legs. The femur is the largest bone in the human body. The head of the femur articulates with the acetabulum. By most measures the femur is one of the strongest bones in the body.
[24] Which of the following is the smallest bird?
A.
Pigeon
B.
Parrot
C.
Humming bird
D.
House sparrow
Ans:
Humming bird
Explanation :
Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5-13 cm (3-5 in) range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird. They can hover in mid-air by rapidly flapping their wings 12- 80 times per second (depending on the species). They are known as hummingbirds because of the humming sound created by their beating wings, which sometimes sound like bees or other insects.
[25] The edible part of Cabbage is -
A.
fruit
B.
condensed flower
C.
vegetative bud
D.
inflorescence
Ans:
vegetative bud
Explanation :
In cabbage, the edible part is vegetative bud. Vegetative buds are buds from which vegetative parts like leaves and stems arise, rather than flowers. Enlarged buds or parts of buds form the edible portion of some horticultural crops. Cabbage and head lettuce are examples of unusually large terminal buds.
Explanation :
These functions are made possible due to a part of the hind-brain called the cerebellum. It is responsible for precision of voluntary actions.
[6] The hybrid between horse and donkey is called -
A.
Pony
B.
Colt
C.
Mule
D.
Zebra
Ans:
Mule
Explanation :
The Mule is a cross between a donkey stallion (called a jack) and a horse mare. Mules ears are usually somewhat smaller than a donkeys, longer but the same shape as the horse parents. The mule's conformation will be a combination of traits from both parents. The head, hip and legs usually take after the jack. Mules do not have pronounced arches to the neck, even from breeds such as Arabians or Warm bloods. A slight arch or straight neck is preferable to a ewe, or upward curved neck.
[7] Which of the following is not a member of the vitamin B complex?
A.
Thiamine
B.
Riboflavin
C.
Folic acid
D.
Ascorbic acid
Ans:
Ascorbic acid
Explanation :
Vitamin B complex consists of 8 vitamins namely B1, B2, B3, B5, B6, B7, B9 and B12. Vitamin B1 is Thiamine, Vit B2 is Riboflavin, Vit B3 is Niacin, Vit B5 is pantothenic acid, Vit B6 is pyridoxine, biotin, folic acid and Vit B12 is cyanocobalamin.
[8] Cystitis is the infection of which of the following?
A.
liver
B.
urinary bladder
C.
pancreas
D.
lung
Ans:
urinary bladder
Explanation :
Cystitis is an infection of the urinary tract that is caused by bacteria. Anyone can develop cystitis, although it is more common in women.
[9] Which of the following makes the skin layer impervious to water?
A.
Collagen
B.
Melanin
C.
Keratin
D.
Chitin
Ans:
Keratin
Explanation :
Keratin is a family of fibrous structural proteins. Keratin is the key structural material making up the outer layer of human skin. It is also the key structural component of hair and nails. Keratin monomers assemble into bundles to form intermediate filaments, which are tough and insoluble and form strong un-mineralized tissues found in reptiles, birds, amphibians, and mammals. Cells in the epidermis contain a structural matrix of keratin, which makes this outermost layer of the skin almost waterproof, and along with collagen and elastin, gives skin its strength.
[10] 'ELISA' test is employed to diagnose -
A.
Polio virus
B.
AIDS antibodies
C.
Tuberculosis bacterium
D.
Cancer
Ans:
Tuberculosis bacterium
Explanation :
ELISA is an abbreviation for "enzymelinked immunosorbent assay." An ELISA test uses components of the immune system and chemicals to detect immune responses In the body (for example, to infectious microbes).
[11] The body temperature is regulated by —
A.
Pituitory gland
B.
Hypothalamus
C.
Pineal gland
D.
Thyroid gland
Ans:
Hypothalamus
Explanation :
Hypothalamus is a portion of the brain that contains a number of small nuclei with a variety of functions. One of the most important functions of the hypothalamus is to link the nervous system to the endocrine system via the pituitary gland (hypophysis). The hypothalamus is responsible for certain metabolic processes and other activities of the autonomic nervous system. It synthesizes and secretes certain neurohormones, often called hypothalamic-releasing hormones, and these in turn stimulate or inhibit the secretion of pituitary hormones. The hypothalamus controls body temperature, hunger, thirst, fatigue, sleep, and circadian cycles.
[12] The study of extinct animals is called -
A.
Herpetology
B.
Ornithology
C.
Geology
D.
Palaeontology
Ans:
Palaeontology
Explanation :
Paleontology is the study of fossils to determine the structure and evolution of extinct animals and plants and the age and conditions of deposition of the rock strata in which they are found. It includes the study of fossils to determine organisms' evolution and interactions with each other and their environments (their paleoecology). As a "historical science" it attempts to explain causes rather than conduct experiments to observe effects. Palaeontological observations have been documented as far back as the 5th century B.C.E.
[13] The medical term used for the sleeplessness is -
A.
Somnambulism
B.
Insomnia
C.
Hallucination
D.
Nyctinuria
Ans:
Insomnia
Explanation :
Insomnia, or sleeplessness, is a sleep disorder in which there is an inability to fall asleep or to stay asleep as long as desired. It is most often thought of as both a sign and a symptom that can accompany several sleep, medical, and psychiatric disorders characterized by a persistent difficulty falling asleep and/or staying asleep or sleep of poor quality. Insomnia is typically followed by functional impairment while awake. Insomnia can occur at any age, but it is particularly common in the elderly.
[14] Which one of the following creatures has maximum number of ribs?
A.
Crocodile
B.
Snake
C.
Ray fish
D.
Flying mammal
Ans:
Snake
Explanation :
Snakes have the maximum number of ribs. On an average they have 200 to 400 bones (Vertibrae) and each have a pair of ribs on either side.
[15] Which one of the following is most important for the growth of children up to the age of 14?
A.
Protein
B.
Vitamin
C.
Fat
D.
Milk
Ans:
Protein
Explanation :
Protein is a vital part of a healthy diet for children. This substance, though important for all people, is especially necessary for developing and growing bodies. Protein is used as a source of energy, especially when carbohydrates and fats are at insufficient levels in the diet. In addition, a child needs adequate protein to support the body's production of its own proteins. The manufactured proteins are used in strength maintenance, development of muscles and connective tissues, transportation of oxygen to all areas of the body and antibody production to fight infections.
[16] Sweat glands in mammals are primarily concerned with -
A.
removal of excess salts
B.
excretion of nitrogenous wastes
C.
therrnoregulation
D.
sex-attraction
Ans:
therrnoregulation
Explanation :
Sweat glands, or sudoriferous glands, are small tubular structures of the skin that produce sweat. The cause of sweating and body odor stems from our body's temperature regulation system, specifically our sweat glands. Sweating helps maintain our body temperature, hydrates our skin and balances our body fluids and electrolytes, chemicals in our body such as sodium and calcium.
[17] DNA test was developed by -
A.
Dr. Alec Jeffreys
B.
Dr. V.K. Kashyap
C.
Watson and Crick
D.
Gregor Mendel
Ans:
Watson and Crick
Explanation :
A genealogical. DNA test looks at a person's genetic code at specific locations. Results give information about genealogy or personal ancestry. James D. Watson and Francis Crick are the two scientists who discovered the structure of DNA in 1953.
[18] An ECG shows the functioning of the -
A.
brain
B.
heart
C.
lungs
D.
kidneys
Ans:
heart
Explanation :
The electrocardiogram (ECG or EKG) is a diagnostic tool that is routinely used to assess the electrical and muscular functions of the heart. The heart is a two stage electrical pump and the heart's electrical activity can be measured by electrodes placed on the skin. The electrocardiogram can measure the rate and rhythm of the heartbeat, as well as provide indirect evidence of blood flow to the heart muscle.
[19] A vitamin requires cobalt for its activity. The vitamin is -
A.
Vitamin B12
B.
Vitamin D
C.
Vitamin B2
D.
Vitamin A
Ans:
Vitamin B12
Explanation :
Vitamin B12, vitamin B1, or vitamin B12, also called cobalarnin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. It is one of the eight B vitamins. It is normally involved in the metabolism of every cell of the human body, especially affecting DNA synthesis and regulation, but also fatty acid synthesis and energy production. Vitamin B12 consists of a class of chemically related compounds (vitamers), all of which have vitamin activity. It contains the biochemically rare element cobalt.
[20] Plasma membrane in eukaryotic cells is made up of -
A.
Phospholipid
B.
Lipoprotein
C.
Phospholipo-protein
D.
Phospho-protein
Ans:
Phospholipid
Explanation :
The cell membrane or plasma membrane is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings.
[21] The locomotory organ of 'Amoeba' is -
A.
Pseudopodia
B.
Parapodia
C.
Flagella
D.
Cilia
Ans:
Pseudopodia
Explanation :
Pseudopods or pseudopodia (singular: pseudopodium) are temporary projections of eukaryotic cells. Cells that possess this faculty are generally referred to as amoeboids. Pseudopodia extend and contract by the reversible assembly of actin subunits into microfilaments. Filaments near the cell's end interact with myosin which causes contraction. The pseudopodium extends itself until the actin reassembles itself into a network. This is how amoebas move, as well as some cells found in animals, such as white blood cells. They are most commonly found on eubacteria.
[22] The number of chromosomes present in normal human being are -
A.
23
B.
46
C.
22
D.
48
Ans:
46
Explanation :
A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions. Chromosomes in humans can be divided into two types: autosomes and sex chromosomes. Certain genetic traits are linked to a person's sex and are passed on through the sex chromosomes.
[23] The longest bone in the human body is -
A.
Ulna
B.
Humerus
C.
Femur
D.
Tibia
Ans:
Femur
Explanation :
The femur or thigh bone, is the most proximal (closest to the center of the body) bone of the leg in tetrapod vertebrates capable of walking or jumping, such as most land mammals, birds, many reptiles such as lizards, and amphibians such as frogs. In vertebrates with four legs such as dogs and horses, the femur is found only in the rear legs. The femur is the largest bone in the human body. The head of the femur articulates with the acetabulum. By most measures the femur is one of the strongest bones in the body.
[24] Which of the following is the smallest bird?
A.
Pigeon
B.
Parrot
C.
Humming bird
D.
House sparrow
Ans:
Humming bird
Explanation :
Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5-13 cm (3-5 in) range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird. They can hover in mid-air by rapidly flapping their wings 12- 80 times per second (depending on the species). They are known as hummingbirds because of the humming sound created by their beating wings, which sometimes sound like bees or other insects.
[25] The edible part of Cabbage is -
A.
fruit
B.
condensed flower
C.
vegetative bud
D.
inflorescence
Ans:
vegetative bud
Explanation :
In cabbage, the edible part is vegetative bud. Vegetative buds are buds from which vegetative parts like leaves and stems arise, rather than flowers. Enlarged buds or parts of buds form the edible portion of some horticultural crops. Cabbage and head lettuce are examples of unusually large terminal buds.
Explanation :
Vitamin B complex consists of 8 vitamins namely B1, B2, B3, B5, B6, B7, B9 and B12. Vitamin B1 is Thiamine, Vit B2 is Riboflavin, Vit B3 is Niacin, Vit B5 is pantothenic acid, Vit B6 is pyridoxine, biotin, folic acid and Vit B12 is cyanocobalamin.
[8] Cystitis is the infection of which of the following?
A.
liver
B.
urinary bladder
C.
pancreas
D.
lung
Ans:
urinary bladder
Explanation :
Cystitis is an infection of the urinary tract that is caused by bacteria. Anyone can develop cystitis, although it is more common in women.
[9] Which of the following makes the skin layer impervious to water?
A.
Collagen
B.
Melanin
C.
Keratin
D.
Chitin
Ans:
Keratin
Explanation :
Keratin is a family of fibrous structural proteins. Keratin is the key structural material making up the outer layer of human skin. It is also the key structural component of hair and nails. Keratin monomers assemble into bundles to form intermediate filaments, which are tough and insoluble and form strong un-mineralized tissues found in reptiles, birds, amphibians, and mammals. Cells in the epidermis contain a structural matrix of keratin, which makes this outermost layer of the skin almost waterproof, and along with collagen and elastin, gives skin its strength.
[10] 'ELISA' test is employed to diagnose -
A.
Polio virus
B.
AIDS antibodies
C.
Tuberculosis bacterium
D.
Cancer
Ans:
Tuberculosis bacterium
Explanation :
ELISA is an abbreviation for "enzymelinked immunosorbent assay." An ELISA test uses components of the immune system and chemicals to detect immune responses In the body (for example, to infectious microbes).
[11] The body temperature is regulated by —
A.
Pituitory gland
B.
Hypothalamus
C.
Pineal gland
D.
Thyroid gland
Ans:
Hypothalamus
Explanation :
Hypothalamus is a portion of the brain that contains a number of small nuclei with a variety of functions. One of the most important functions of the hypothalamus is to link the nervous system to the endocrine system via the pituitary gland (hypophysis). The hypothalamus is responsible for certain metabolic processes and other activities of the autonomic nervous system. It synthesizes and secretes certain neurohormones, often called hypothalamic-releasing hormones, and these in turn stimulate or inhibit the secretion of pituitary hormones. The hypothalamus controls body temperature, hunger, thirst, fatigue, sleep, and circadian cycles.
[12] The study of extinct animals is called -
A.
Herpetology
B.
Ornithology
C.
Geology
D.
Palaeontology
Ans:
Palaeontology
Explanation :
Paleontology is the study of fossils to determine the structure and evolution of extinct animals and plants and the age and conditions of deposition of the rock strata in which they are found. It includes the study of fossils to determine organisms' evolution and interactions with each other and their environments (their paleoecology). As a "historical science" it attempts to explain causes rather than conduct experiments to observe effects. Palaeontological observations have been documented as far back as the 5th century B.C.E.
[13] The medical term used for the sleeplessness is -
A.
Somnambulism
B.
Insomnia
C.
Hallucination
D.
Nyctinuria
Ans:
Insomnia
Explanation :
Insomnia, or sleeplessness, is a sleep disorder in which there is an inability to fall asleep or to stay asleep as long as desired. It is most often thought of as both a sign and a symptom that can accompany several sleep, medical, and psychiatric disorders characterized by a persistent difficulty falling asleep and/or staying asleep or sleep of poor quality. Insomnia is typically followed by functional impairment while awake. Insomnia can occur at any age, but it is particularly common in the elderly.
[14] Which one of the following creatures has maximum number of ribs?
A.
Crocodile
B.
Snake
C.
Ray fish
D.
Flying mammal
Ans:
Snake
Explanation :
Snakes have the maximum number of ribs. On an average they have 200 to 400 bones (Vertibrae) and each have a pair of ribs on either side.
[15] Which one of the following is most important for the growth of children up to the age of 14?
A.
Protein
B.
Vitamin
C.
Fat
D.
Milk
Ans:
Protein
Explanation :
Protein is a vital part of a healthy diet for children. This substance, though important for all people, is especially necessary for developing and growing bodies. Protein is used as a source of energy, especially when carbohydrates and fats are at insufficient levels in the diet. In addition, a child needs adequate protein to support the body's production of its own proteins. The manufactured proteins are used in strength maintenance, development of muscles and connective tissues, transportation of oxygen to all areas of the body and antibody production to fight infections.
[16] Sweat glands in mammals are primarily concerned with -
A.
removal of excess salts
B.
excretion of nitrogenous wastes
C.
therrnoregulation
D.
sex-attraction
Ans:
therrnoregulation
Explanation :
Sweat glands, or sudoriferous glands, are small tubular structures of the skin that produce sweat. The cause of sweating and body odor stems from our body's temperature regulation system, specifically our sweat glands. Sweating helps maintain our body temperature, hydrates our skin and balances our body fluids and electrolytes, chemicals in our body such as sodium and calcium.
[17] DNA test was developed by -
A.
Dr. Alec Jeffreys
B.
Dr. V.K. Kashyap
C.
Watson and Crick
D.
Gregor Mendel
Ans:
Watson and Crick
Explanation :
A genealogical. DNA test looks at a person's genetic code at specific locations. Results give information about genealogy or personal ancestry. James D. Watson and Francis Crick are the two scientists who discovered the structure of DNA in 1953.
[18] An ECG shows the functioning of the -
A.
brain
B.
heart
C.
lungs
D.
kidneys
Ans:
heart
Explanation :
The electrocardiogram (ECG or EKG) is a diagnostic tool that is routinely used to assess the electrical and muscular functions of the heart. The heart is a two stage electrical pump and the heart's electrical activity can be measured by electrodes placed on the skin. The electrocardiogram can measure the rate and rhythm of the heartbeat, as well as provide indirect evidence of blood flow to the heart muscle.
[19] A vitamin requires cobalt for its activity. The vitamin is -
A.
Vitamin B12
B.
Vitamin D
C.
Vitamin B2
D.
Vitamin A
Ans:
Vitamin B12
Explanation :
Vitamin B12, vitamin B1, or vitamin B12, also called cobalarnin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. It is one of the eight B vitamins. It is normally involved in the metabolism of every cell of the human body, especially affecting DNA synthesis and regulation, but also fatty acid synthesis and energy production. Vitamin B12 consists of a class of chemically related compounds (vitamers), all of which have vitamin activity. It contains the biochemically rare element cobalt.
[20] Plasma membrane in eukaryotic cells is made up of -
A.
Phospholipid
B.
Lipoprotein
C.
Phospholipo-protein
D.
Phospho-protein
Ans:
Phospholipid
Explanation :
The cell membrane or plasma membrane is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings.
[21] The locomotory organ of 'Amoeba' is -
A.
Pseudopodia
B.
Parapodia
C.
Flagella
D.
Cilia
Ans:
Pseudopodia
Explanation :
Pseudopods or pseudopodia (singular: pseudopodium) are temporary projections of eukaryotic cells. Cells that possess this faculty are generally referred to as amoeboids. Pseudopodia extend and contract by the reversible assembly of actin subunits into microfilaments. Filaments near the cell's end interact with myosin which causes contraction. The pseudopodium extends itself until the actin reassembles itself into a network. This is how amoebas move, as well as some cells found in animals, such as white blood cells. They are most commonly found on eubacteria.
[22] The number of chromosomes present in normal human being are -
A.
23
B.
46
C.
22
D.
48
Ans:
46
Explanation :
A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions. Chromosomes in humans can be divided into two types: autosomes and sex chromosomes. Certain genetic traits are linked to a person's sex and are passed on through the sex chromosomes.
[23] The longest bone in the human body is -
A.
Ulna
B.
Humerus
C.
Femur
D.
Tibia
Ans:
Femur
Explanation :
The femur or thigh bone, is the most proximal (closest to the center of the body) bone of the leg in tetrapod vertebrates capable of walking or jumping, such as most land mammals, birds, many reptiles such as lizards, and amphibians such as frogs. In vertebrates with four legs such as dogs and horses, the femur is found only in the rear legs. The femur is the largest bone in the human body. The head of the femur articulates with the acetabulum. By most measures the femur is one of the strongest bones in the body.
[24] Which of the following is the smallest bird?
A.
Pigeon
B.
Parrot
C.
Humming bird
D.
House sparrow
Ans:
Humming bird
Explanation :
Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5-13 cm (3-5 in) range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird. They can hover in mid-air by rapidly flapping their wings 12- 80 times per second (depending on the species). They are known as hummingbirds because of the humming sound created by their beating wings, which sometimes sound like bees or other insects.
[25] The edible part of Cabbage is -
A.
fruit
B.
condensed flower
C.
vegetative bud
D.
inflorescence
Ans:
vegetative bud
Explanation :
In cabbage, the edible part is vegetative bud. Vegetative buds are buds from which vegetative parts like leaves and stems arise, rather than flowers. Enlarged buds or parts of buds form the edible portion of some horticultural crops. Cabbage and head lettuce are examples of unusually large terminal buds.
Explanation :
Keratin is a family of fibrous structural proteins. Keratin is the key structural material making up the outer layer of human skin. It is also the key structural component of hair and nails. Keratin monomers assemble into bundles to form intermediate filaments, which are tough and insoluble and form strong un-mineralized tissues found in reptiles, birds, amphibians, and mammals. Cells in the epidermis contain a structural matrix of keratin, which makes this outermost layer of the skin almost waterproof, and along with collagen and elastin, gives skin its strength.
[10] 'ELISA' test is employed to diagnose -
A.
Polio virus
B.
AIDS antibodies
C.
Tuberculosis bacterium
D.
Cancer
Ans:
Tuberculosis bacterium
Explanation :
ELISA is an abbreviation for "enzymelinked immunosorbent assay." An ELISA test uses components of the immune system and chemicals to detect immune responses In the body (for example, to infectious microbes).
[11] The body temperature is regulated by —
A.
Pituitory gland
B.
Hypothalamus
C.
Pineal gland
D.
Thyroid gland
Ans:
Hypothalamus
Explanation :
Hypothalamus is a portion of the brain that contains a number of small nuclei with a variety of functions. One of the most important functions of the hypothalamus is to link the nervous system to the endocrine system via the pituitary gland (hypophysis). The hypothalamus is responsible for certain metabolic processes and other activities of the autonomic nervous system. It synthesizes and secretes certain neurohormones, often called hypothalamic-releasing hormones, and these in turn stimulate or inhibit the secretion of pituitary hormones. The hypothalamus controls body temperature, hunger, thirst, fatigue, sleep, and circadian cycles.
[12] The study of extinct animals is called -
A.
Herpetology
B.
Ornithology
C.
Geology
D.
Palaeontology
Ans:
Palaeontology
Explanation :
Paleontology is the study of fossils to determine the structure and evolution of extinct animals and plants and the age and conditions of deposition of the rock strata in which they are found. It includes the study of fossils to determine organisms' evolution and interactions with each other and their environments (their paleoecology). As a "historical science" it attempts to explain causes rather than conduct experiments to observe effects. Palaeontological observations have been documented as far back as the 5th century B.C.E.
[13] The medical term used for the sleeplessness is -
A.
Somnambulism
B.
Insomnia
C.
Hallucination
D.
Nyctinuria
Ans:
Insomnia
Explanation :
Insomnia, or sleeplessness, is a sleep disorder in which there is an inability to fall asleep or to stay asleep as long as desired. It is most often thought of as both a sign and a symptom that can accompany several sleep, medical, and psychiatric disorders characterized by a persistent difficulty falling asleep and/or staying asleep or sleep of poor quality. Insomnia is typically followed by functional impairment while awake. Insomnia can occur at any age, but it is particularly common in the elderly.
[14] Which one of the following creatures has maximum number of ribs?
A.
Crocodile
B.
Snake
C.
Ray fish
D.
Flying mammal
Ans:
Snake
Explanation :
Snakes have the maximum number of ribs. On an average they have 200 to 400 bones (Vertibrae) and each have a pair of ribs on either side.
[15] Which one of the following is most important for the growth of children up to the age of 14?
A.
Protein
B.
Vitamin
C.
Fat
D.
Milk
Ans:
Protein
Explanation :
Protein is a vital part of a healthy diet for children. This substance, though important for all people, is especially necessary for developing and growing bodies. Protein is used as a source of energy, especially when carbohydrates and fats are at insufficient levels in the diet. In addition, a child needs adequate protein to support the body's production of its own proteins. The manufactured proteins are used in strength maintenance, development of muscles and connective tissues, transportation of oxygen to all areas of the body and antibody production to fight infections.
[16] Sweat glands in mammals are primarily concerned with -
A.
removal of excess salts
B.
excretion of nitrogenous wastes
C.
therrnoregulation
D.
sex-attraction
Ans:
therrnoregulation
Explanation :
Sweat glands, or sudoriferous glands, are small tubular structures of the skin that produce sweat. The cause of sweating and body odor stems from our body's temperature regulation system, specifically our sweat glands. Sweating helps maintain our body temperature, hydrates our skin and balances our body fluids and electrolytes, chemicals in our body such as sodium and calcium.
[17] DNA test was developed by -
A.
Dr. Alec Jeffreys
B.
Dr. V.K. Kashyap
C.
Watson and Crick
D.
Gregor Mendel
Ans:
Watson and Crick
Explanation :
A genealogical. DNA test looks at a person's genetic code at specific locations. Results give information about genealogy or personal ancestry. James D. Watson and Francis Crick are the two scientists who discovered the structure of DNA in 1953.
[18] An ECG shows the functioning of the -
A.
brain
B.
heart
C.
lungs
D.
kidneys
Ans:
heart
Explanation :
The electrocardiogram (ECG or EKG) is a diagnostic tool that is routinely used to assess the electrical and muscular functions of the heart. The heart is a two stage electrical pump and the heart's electrical activity can be measured by electrodes placed on the skin. The electrocardiogram can measure the rate and rhythm of the heartbeat, as well as provide indirect evidence of blood flow to the heart muscle.
[19] A vitamin requires cobalt for its activity. The vitamin is -
A.
Vitamin B12
B.
Vitamin D
C.
Vitamin B2
D.
Vitamin A
Ans:
Vitamin B12
Explanation :
Vitamin B12, vitamin B1, or vitamin B12, also called cobalarnin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. It is one of the eight B vitamins. It is normally involved in the metabolism of every cell of the human body, especially affecting DNA synthesis and regulation, but also fatty acid synthesis and energy production. Vitamin B12 consists of a class of chemically related compounds (vitamers), all of which have vitamin activity. It contains the biochemically rare element cobalt.
[20] Plasma membrane in eukaryotic cells is made up of -
A.
Phospholipid
B.
Lipoprotein
C.
Phospholipo-protein
D.
Phospho-protein
Ans:
Phospholipid
Explanation :
The cell membrane or plasma membrane is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings.
[21] The locomotory organ of 'Amoeba' is -
A.
Pseudopodia
B.
Parapodia
C.
Flagella
D.
Cilia
Ans:
Pseudopodia
Explanation :
Pseudopods or pseudopodia (singular: pseudopodium) are temporary projections of eukaryotic cells. Cells that possess this faculty are generally referred to as amoeboids. Pseudopodia extend and contract by the reversible assembly of actin subunits into microfilaments. Filaments near the cell's end interact with myosin which causes contraction. The pseudopodium extends itself until the actin reassembles itself into a network. This is how amoebas move, as well as some cells found in animals, such as white blood cells. They are most commonly found on eubacteria.
[22] The number of chromosomes present in normal human being are -
A.
23
B.
46
C.
22
D.
48
Ans:
46
Explanation :
A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions. Chromosomes in humans can be divided into two types: autosomes and sex chromosomes. Certain genetic traits are linked to a person's sex and are passed on through the sex chromosomes.
[23] The longest bone in the human body is -
A.
Ulna
B.
Humerus
C.
Femur
D.
Tibia
Ans:
Femur
Explanation :
The femur or thigh bone, is the most proximal (closest to the center of the body) bone of the leg in tetrapod vertebrates capable of walking or jumping, such as most land mammals, birds, many reptiles such as lizards, and amphibians such as frogs. In vertebrates with four legs such as dogs and horses, the femur is found only in the rear legs. The femur is the largest bone in the human body. The head of the femur articulates with the acetabulum. By most measures the femur is one of the strongest bones in the body.
[24] Which of the following is the smallest bird?
A.
Pigeon
B.
Parrot
C.
Humming bird
D.
House sparrow
Ans:
Humming bird
Explanation :
Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5-13 cm (3-5 in) range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird. They can hover in mid-air by rapidly flapping their wings 12- 80 times per second (depending on the species). They are known as hummingbirds because of the humming sound created by their beating wings, which sometimes sound like bees or other insects.
[25] The edible part of Cabbage is -
A.
fruit
B.
condensed flower
C.
vegetative bud
D.
inflorescence
Ans:
vegetative bud
Explanation :
In cabbage, the edible part is vegetative bud. Vegetative buds are buds from which vegetative parts like leaves and stems arise, rather than flowers. Enlarged buds or parts of buds form the edible portion of some horticultural crops. Cabbage and head lettuce are examples of unusually large terminal buds.
Explanation :
Hypothalamus is a portion of the brain that contains a number of small nuclei with a variety of functions. One of the most important functions of the hypothalamus is to link the nervous system to the endocrine system via the pituitary gland (hypophysis). The hypothalamus is responsible for certain metabolic processes and other activities of the autonomic nervous system. It synthesizes and secretes certain neurohormones, often called hypothalamic-releasing hormones, and these in turn stimulate or inhibit the secretion of pituitary hormones. The hypothalamus controls body temperature, hunger, thirst, fatigue, sleep, and circadian cycles.
[12] The study of extinct animals is called -
A.
Herpetology
B.
Ornithology
C.
Geology
D.
Palaeontology
Ans:
Palaeontology
Explanation :
Paleontology is the study of fossils to determine the structure and evolution of extinct animals and plants and the age and conditions of deposition of the rock strata in which they are found. It includes the study of fossils to determine organisms' evolution and interactions with each other and their environments (their paleoecology). As a "historical science" it attempts to explain causes rather than conduct experiments to observe effects. Palaeontological observations have been documented as far back as the 5th century B.C.E.
[13] The medical term used for the sleeplessness is -
A.
Somnambulism
B.
Insomnia
C.
Hallucination
D.
Nyctinuria
Ans:
Insomnia
Explanation :
Insomnia, or sleeplessness, is a sleep disorder in which there is an inability to fall asleep or to stay asleep as long as desired. It is most often thought of as both a sign and a symptom that can accompany several sleep, medical, and psychiatric disorders characterized by a persistent difficulty falling asleep and/or staying asleep or sleep of poor quality. Insomnia is typically followed by functional impairment while awake. Insomnia can occur at any age, but it is particularly common in the elderly.
[14] Which one of the following creatures has maximum number of ribs?
A.
Crocodile
B.
Snake
C.
Ray fish
D.
Flying mammal
Ans:
Snake
Explanation :
Snakes have the maximum number of ribs. On an average they have 200 to 400 bones (Vertibrae) and each have a pair of ribs on either side.
[15] Which one of the following is most important for the growth of children up to the age of 14?
A.
Protein
B.
Vitamin
C.
Fat
D.
Milk
Ans:
Protein
Explanation :
Protein is a vital part of a healthy diet for children. This substance, though important for all people, is especially necessary for developing and growing bodies. Protein is used as a source of energy, especially when carbohydrates and fats are at insufficient levels in the diet. In addition, a child needs adequate protein to support the body's production of its own proteins. The manufactured proteins are used in strength maintenance, development of muscles and connective tissues, transportation of oxygen to all areas of the body and antibody production to fight infections.
[16] Sweat glands in mammals are primarily concerned with -
A.
removal of excess salts
B.
excretion of nitrogenous wastes
C.
therrnoregulation
D.
sex-attraction
Ans:
therrnoregulation
Explanation :
Sweat glands, or sudoriferous glands, are small tubular structures of the skin that produce sweat. The cause of sweating and body odor stems from our body's temperature regulation system, specifically our sweat glands. Sweating helps maintain our body temperature, hydrates our skin and balances our body fluids and electrolytes, chemicals in our body such as sodium and calcium.
[17] DNA test was developed by -
A.
Dr. Alec Jeffreys
B.
Dr. V.K. Kashyap
C.
Watson and Crick
D.
Gregor Mendel
Ans:
Watson and Crick
Explanation :
A genealogical. DNA test looks at a person's genetic code at specific locations. Results give information about genealogy or personal ancestry. James D. Watson and Francis Crick are the two scientists who discovered the structure of DNA in 1953.
[18] An ECG shows the functioning of the -
A.
brain
B.
heart
C.
lungs
D.
kidneys
Ans:
heart
Explanation :
The electrocardiogram (ECG or EKG) is a diagnostic tool that is routinely used to assess the electrical and muscular functions of the heart. The heart is a two stage electrical pump and the heart's electrical activity can be measured by electrodes placed on the skin. The electrocardiogram can measure the rate and rhythm of the heartbeat, as well as provide indirect evidence of blood flow to the heart muscle.
[19] A vitamin requires cobalt for its activity. The vitamin is -
A.
Vitamin B12
B.
Vitamin D
C.
Vitamin B2
D.
Vitamin A
Ans:
Vitamin B12
Explanation :
Vitamin B12, vitamin B1, or vitamin B12, also called cobalarnin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. It is one of the eight B vitamins. It is normally involved in the metabolism of every cell of the human body, especially affecting DNA synthesis and regulation, but also fatty acid synthesis and energy production. Vitamin B12 consists of a class of chemically related compounds (vitamers), all of which have vitamin activity. It contains the biochemically rare element cobalt.
[20] Plasma membrane in eukaryotic cells is made up of -
A.
Phospholipid
B.
Lipoprotein
C.
Phospholipo-protein
D.
Phospho-protein
Ans:
Phospholipid
Explanation :
The cell membrane or plasma membrane is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings.
[21] The locomotory organ of 'Amoeba' is -
A.
Pseudopodia
B.
Parapodia
C.
Flagella
D.
Cilia
Ans:
Pseudopodia
Explanation :
Pseudopods or pseudopodia (singular: pseudopodium) are temporary projections of eukaryotic cells. Cells that possess this faculty are generally referred to as amoeboids. Pseudopodia extend and contract by the reversible assembly of actin subunits into microfilaments. Filaments near the cell's end interact with myosin which causes contraction. The pseudopodium extends itself until the actin reassembles itself into a network. This is how amoebas move, as well as some cells found in animals, such as white blood cells. They are most commonly found on eubacteria.
[22] The number of chromosomes present in normal human being are -
A.
23
B.
46
C.
22
D.
48
Ans:
46
Explanation :
A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions. Chromosomes in humans can be divided into two types: autosomes and sex chromosomes. Certain genetic traits are linked to a person's sex and are passed on through the sex chromosomes.
[23] The longest bone in the human body is -
A.
Ulna
B.
Humerus
C.
Femur
D.
Tibia
Ans:
Femur
Explanation :
The femur or thigh bone, is the most proximal (closest to the center of the body) bone of the leg in tetrapod vertebrates capable of walking or jumping, such as most land mammals, birds, many reptiles such as lizards, and amphibians such as frogs. In vertebrates with four legs such as dogs and horses, the femur is found only in the rear legs. The femur is the largest bone in the human body. The head of the femur articulates with the acetabulum. By most measures the femur is one of the strongest bones in the body.
[24] Which of the following is the smallest bird?
A.
Pigeon
B.
Parrot
C.
Humming bird
D.
House sparrow
Ans:
Humming bird
Explanation :
Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5-13 cm (3-5 in) range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird. They can hover in mid-air by rapidly flapping their wings 12- 80 times per second (depending on the species). They are known as hummingbirds because of the humming sound created by their beating wings, which sometimes sound like bees or other insects.
[25] The edible part of Cabbage is -
A.
fruit
B.
condensed flower
C.
vegetative bud
D.
inflorescence
Ans:
vegetative bud
Explanation :
In cabbage, the edible part is vegetative bud. Vegetative buds are buds from which vegetative parts like leaves and stems arise, rather than flowers. Enlarged buds or parts of buds form the edible portion of some horticultural crops. Cabbage and head lettuce are examples of unusually large terminal buds.
Explanation :
Insomnia, or sleeplessness, is a sleep disorder in which there is an inability to fall asleep or to stay asleep as long as desired. It is most often thought of as both a sign and a symptom that can accompany several sleep, medical, and psychiatric disorders characterized by a persistent difficulty falling asleep and/or staying asleep or sleep of poor quality. Insomnia is typically followed by functional impairment while awake. Insomnia can occur at any age, but it is particularly common in the elderly.
[14] Which one of the following creatures has maximum number of ribs?
A.
Crocodile
B.
Snake
C.
Ray fish
D.
Flying mammal
Ans:
Snake
Explanation :
Snakes have the maximum number of ribs. On an average they have 200 to 400 bones (Vertibrae) and each have a pair of ribs on either side.
[15] Which one of the following is most important for the growth of children up to the age of 14?
A.
Protein
B.
Vitamin
C.
Fat
D.
Milk
Ans:
Protein
Explanation :
Protein is a vital part of a healthy diet for children. This substance, though important for all people, is especially necessary for developing and growing bodies. Protein is used as a source of energy, especially when carbohydrates and fats are at insufficient levels in the diet. In addition, a child needs adequate protein to support the body's production of its own proteins. The manufactured proteins are used in strength maintenance, development of muscles and connective tissues, transportation of oxygen to all areas of the body and antibody production to fight infections.
[16] Sweat glands in mammals are primarily concerned with -
A.
removal of excess salts
B.
excretion of nitrogenous wastes
C.
therrnoregulation
D.
sex-attraction
Ans:
therrnoregulation
Explanation :
Sweat glands, or sudoriferous glands, are small tubular structures of the skin that produce sweat. The cause of sweating and body odor stems from our body's temperature regulation system, specifically our sweat glands. Sweating helps maintain our body temperature, hydrates our skin and balances our body fluids and electrolytes, chemicals in our body such as sodium and calcium.
[17] DNA test was developed by -
A.
Dr. Alec Jeffreys
B.
Dr. V.K. Kashyap
C.
Watson and Crick
D.
Gregor Mendel
Ans:
Watson and Crick
Explanation :
A genealogical. DNA test looks at a person's genetic code at specific locations. Results give information about genealogy or personal ancestry. James D. Watson and Francis Crick are the two scientists who discovered the structure of DNA in 1953.
[18] An ECG shows the functioning of the -
A.
brain
B.
heart
C.
lungs
D.
kidneys
Ans:
heart
Explanation :
The electrocardiogram (ECG or EKG) is a diagnostic tool that is routinely used to assess the electrical and muscular functions of the heart. The heart is a two stage electrical pump and the heart's electrical activity can be measured by electrodes placed on the skin. The electrocardiogram can measure the rate and rhythm of the heartbeat, as well as provide indirect evidence of blood flow to the heart muscle.
[19] A vitamin requires cobalt for its activity. The vitamin is -
A.
Vitamin B12
B.
Vitamin D
C.
Vitamin B2
D.
Vitamin A
Ans:
Vitamin B12
Explanation :
Vitamin B12, vitamin B1, or vitamin B12, also called cobalarnin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. It is one of the eight B vitamins. It is normally involved in the metabolism of every cell of the human body, especially affecting DNA synthesis and regulation, but also fatty acid synthesis and energy production. Vitamin B12 consists of a class of chemically related compounds (vitamers), all of which have vitamin activity. It contains the biochemically rare element cobalt.
[20] Plasma membrane in eukaryotic cells is made up of -
A.
Phospholipid
B.
Lipoprotein
C.
Phospholipo-protein
D.
Phospho-protein
Ans:
Phospholipid
Explanation :
The cell membrane or plasma membrane is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings.
[21] The locomotory organ of 'Amoeba' is -
A.
Pseudopodia
B.
Parapodia
C.
Flagella
D.
Cilia
Ans:
Pseudopodia
Explanation :
Pseudopods or pseudopodia (singular: pseudopodium) are temporary projections of eukaryotic cells. Cells that possess this faculty are generally referred to as amoeboids. Pseudopodia extend and contract by the reversible assembly of actin subunits into microfilaments. Filaments near the cell's end interact with myosin which causes contraction. The pseudopodium extends itself until the actin reassembles itself into a network. This is how amoebas move, as well as some cells found in animals, such as white blood cells. They are most commonly found on eubacteria.
[22] The number of chromosomes present in normal human being are -
A.
23
B.
46
C.
22
D.
48
Ans:
46
Explanation :
A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions. Chromosomes in humans can be divided into two types: autosomes and sex chromosomes. Certain genetic traits are linked to a person's sex and are passed on through the sex chromosomes.
[23] The longest bone in the human body is -
A.
Ulna
B.
Humerus
C.
Femur
D.
Tibia
Ans:
Femur
Explanation :
The femur or thigh bone, is the most proximal (closest to the center of the body) bone of the leg in tetrapod vertebrates capable of walking or jumping, such as most land mammals, birds, many reptiles such as lizards, and amphibians such as frogs. In vertebrates with four legs such as dogs and horses, the femur is found only in the rear legs. The femur is the largest bone in the human body. The head of the femur articulates with the acetabulum. By most measures the femur is one of the strongest bones in the body.
[24] Which of the following is the smallest bird?
A.
Pigeon
B.
Parrot
C.
Humming bird
D.
House sparrow
Ans:
Humming bird
Explanation :
Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5-13 cm (3-5 in) range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird. They can hover in mid-air by rapidly flapping their wings 12- 80 times per second (depending on the species). They are known as hummingbirds because of the humming sound created by their beating wings, which sometimes sound like bees or other insects.
[25] The edible part of Cabbage is -
A.
fruit
B.
condensed flower
C.
vegetative bud
D.
inflorescence
Ans:
vegetative bud
Explanation :
In cabbage, the edible part is vegetative bud. Vegetative buds are buds from which vegetative parts like leaves and stems arise, rather than flowers. Enlarged buds or parts of buds form the edible portion of some horticultural crops. Cabbage and head lettuce are examples of unusually large terminal buds.
Explanation :
Protein is a vital part of a healthy diet for children. This substance, though important for all people, is especially necessary for developing and growing bodies. Protein is used as a source of energy, especially when carbohydrates and fats are at insufficient levels in the diet. In addition, a child needs adequate protein to support the body's production of its own proteins. The manufactured proteins are used in strength maintenance, development of muscles and connective tissues, transportation of oxygen to all areas of the body and antibody production to fight infections.
[16] Sweat glands in mammals are primarily concerned with -
A.
removal of excess salts
B.
excretion of nitrogenous wastes
C.
therrnoregulation
D.
sex-attraction
Ans:
therrnoregulation
Explanation :
Sweat glands, or sudoriferous glands, are small tubular structures of the skin that produce sweat. The cause of sweating and body odor stems from our body's temperature regulation system, specifically our sweat glands. Sweating helps maintain our body temperature, hydrates our skin and balances our body fluids and electrolytes, chemicals in our body such as sodium and calcium.
[17] DNA test was developed by -
A.
Dr. Alec Jeffreys
B.
Dr. V.K. Kashyap
C.
Watson and Crick
D.
Gregor Mendel
Ans:
Watson and Crick
Explanation :
A genealogical. DNA test looks at a person's genetic code at specific locations. Results give information about genealogy or personal ancestry. James D. Watson and Francis Crick are the two scientists who discovered the structure of DNA in 1953.
[18] An ECG shows the functioning of the -
A.
brain
B.
heart
C.
lungs
D.
kidneys
Ans:
heart
Explanation :
The electrocardiogram (ECG or EKG) is a diagnostic tool that is routinely used to assess the electrical and muscular functions of the heart. The heart is a two stage electrical pump and the heart's electrical activity can be measured by electrodes placed on the skin. The electrocardiogram can measure the rate and rhythm of the heartbeat, as well as provide indirect evidence of blood flow to the heart muscle.
[19] A vitamin requires cobalt for its activity. The vitamin is -
A.
Vitamin B12
B.
Vitamin D
C.
Vitamin B2
D.
Vitamin A
Ans:
Vitamin B12
Explanation :
Vitamin B12, vitamin B1, or vitamin B12, also called cobalarnin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. It is one of the eight B vitamins. It is normally involved in the metabolism of every cell of the human body, especially affecting DNA synthesis and regulation, but also fatty acid synthesis and energy production. Vitamin B12 consists of a class of chemically related compounds (vitamers), all of which have vitamin activity. It contains the biochemically rare element cobalt.
[20] Plasma membrane in eukaryotic cells is made up of -
A.
Phospholipid
B.
Lipoprotein
C.
Phospholipo-protein
D.
Phospho-protein
Ans:
Phospholipid
Explanation :
The cell membrane or plasma membrane is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings.
[21] The locomotory organ of 'Amoeba' is -
A.
Pseudopodia
B.
Parapodia
C.
Flagella
D.
Cilia
Ans:
Pseudopodia
Explanation :
Pseudopods or pseudopodia (singular: pseudopodium) are temporary projections of eukaryotic cells. Cells that possess this faculty are generally referred to as amoeboids. Pseudopodia extend and contract by the reversible assembly of actin subunits into microfilaments. Filaments near the cell's end interact with myosin which causes contraction. The pseudopodium extends itself until the actin reassembles itself into a network. This is how amoebas move, as well as some cells found in animals, such as white blood cells. They are most commonly found on eubacteria.
[22] The number of chromosomes present in normal human being are -
A.
23
B.
46
C.
22
D.
48
Ans:
46
Explanation :
A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions. Chromosomes in humans can be divided into two types: autosomes and sex chromosomes. Certain genetic traits are linked to a person's sex and are passed on through the sex chromosomes.
[23] The longest bone in the human body is -
A.
Ulna
B.
Humerus
C.
Femur
D.
Tibia
Ans:
Femur
Explanation :
The femur or thigh bone, is the most proximal (closest to the center of the body) bone of the leg in tetrapod vertebrates capable of walking or jumping, such as most land mammals, birds, many reptiles such as lizards, and amphibians such as frogs. In vertebrates with four legs such as dogs and horses, the femur is found only in the rear legs. The femur is the largest bone in the human body. The head of the femur articulates with the acetabulum. By most measures the femur is one of the strongest bones in the body.
[24] Which of the following is the smallest bird?
A.
Pigeon
B.
Parrot
C.
Humming bird
D.
House sparrow
Ans:
Humming bird
Explanation :
Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5-13 cm (3-5 in) range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird. They can hover in mid-air by rapidly flapping their wings 12- 80 times per second (depending on the species). They are known as hummingbirds because of the humming sound created by their beating wings, which sometimes sound like bees or other insects.
[25] The edible part of Cabbage is -
A.
fruit
B.
condensed flower
C.
vegetative bud
D.
inflorescence
Ans:
vegetative bud
Explanation :
In cabbage, the edible part is vegetative bud. Vegetative buds are buds from which vegetative parts like leaves and stems arise, rather than flowers. Enlarged buds or parts of buds form the edible portion of some horticultural crops. Cabbage and head lettuce are examples of unusually large terminal buds.
Explanation :
A genealogical. DNA test looks at a person's genetic code at specific locations. Results give information about genealogy or personal ancestry. James D. Watson and Francis Crick are the two scientists who discovered the structure of DNA in 1953.
[18] An ECG shows the functioning of the -
A.
brain
B.
heart
C.
lungs
D.
kidneys
Ans:
heart
Explanation :
The electrocardiogram (ECG or EKG) is a diagnostic tool that is routinely used to assess the electrical and muscular functions of the heart. The heart is a two stage electrical pump and the heart's electrical activity can be measured by electrodes placed on the skin. The electrocardiogram can measure the rate and rhythm of the heartbeat, as well as provide indirect evidence of blood flow to the heart muscle.
[19] A vitamin requires cobalt for its activity. The vitamin is -
A.
Vitamin B12
B.
Vitamin D
C.
Vitamin B2
D.
Vitamin A
Ans:
Vitamin B12
Explanation :
Vitamin B12, vitamin B1, or vitamin B12, also called cobalarnin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. It is one of the eight B vitamins. It is normally involved in the metabolism of every cell of the human body, especially affecting DNA synthesis and regulation, but also fatty acid synthesis and energy production. Vitamin B12 consists of a class of chemically related compounds (vitamers), all of which have vitamin activity. It contains the biochemically rare element cobalt.
[20] Plasma membrane in eukaryotic cells is made up of -
A.
Phospholipid
B.
Lipoprotein
C.
Phospholipo-protein
D.
Phospho-protein
Ans:
Phospholipid
Explanation :
The cell membrane or plasma membrane is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings.
[21] The locomotory organ of 'Amoeba' is -
A.
Pseudopodia
B.
Parapodia
C.
Flagella
D.
Cilia
Ans:
Pseudopodia
Explanation :
Pseudopods or pseudopodia (singular: pseudopodium) are temporary projections of eukaryotic cells. Cells that possess this faculty are generally referred to as amoeboids. Pseudopodia extend and contract by the reversible assembly of actin subunits into microfilaments. Filaments near the cell's end interact with myosin which causes contraction. The pseudopodium extends itself until the actin reassembles itself into a network. This is how amoebas move, as well as some cells found in animals, such as white blood cells. They are most commonly found on eubacteria.
[22] The number of chromosomes present in normal human being are -
A.
23
B.
46
C.
22
D.
48
Ans:
46
Explanation :
A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions. Chromosomes in humans can be divided into two types: autosomes and sex chromosomes. Certain genetic traits are linked to a person's sex and are passed on through the sex chromosomes.
[23] The longest bone in the human body is -
A.
Ulna
B.
Humerus
C.
Femur
D.
Tibia
Ans:
Femur
Explanation :
The femur or thigh bone, is the most proximal (closest to the center of the body) bone of the leg in tetrapod vertebrates capable of walking or jumping, such as most land mammals, birds, many reptiles such as lizards, and amphibians such as frogs. In vertebrates with four legs such as dogs and horses, the femur is found only in the rear legs. The femur is the largest bone in the human body. The head of the femur articulates with the acetabulum. By most measures the femur is one of the strongest bones in the body.
[24] Which of the following is the smallest bird?
A.
Pigeon
B.
Parrot
C.
Humming bird
D.
House sparrow
Ans:
Humming bird
Explanation :
Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5-13 cm (3-5 in) range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird. They can hover in mid-air by rapidly flapping their wings 12- 80 times per second (depending on the species). They are known as hummingbirds because of the humming sound created by their beating wings, which sometimes sound like bees or other insects.
[25] The edible part of Cabbage is -
A.
fruit
B.
condensed flower
C.
vegetative bud
D.
inflorescence
Ans:
vegetative bud
Explanation :
In cabbage, the edible part is vegetative bud. Vegetative buds are buds from which vegetative parts like leaves and stems arise, rather than flowers. Enlarged buds or parts of buds form the edible portion of some horticultural crops. Cabbage and head lettuce are examples of unusually large terminal buds.
Explanation :
Vitamin B12, vitamin B1, or vitamin B12, also called cobalarnin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. It is one of the eight B vitamins. It is normally involved in the metabolism of every cell of the human body, especially affecting DNA synthesis and regulation, but also fatty acid synthesis and energy production. Vitamin B12 consists of a class of chemically related compounds (vitamers), all of which have vitamin activity. It contains the biochemically rare element cobalt.
[20] Plasma membrane in eukaryotic cells is made up of -
A.
Phospholipid
B.
Lipoprotein
C.
Phospholipo-protein
D.
Phospho-protein
Ans:
Phospholipid
Explanation :
The cell membrane or plasma membrane is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings.
[21] The locomotory organ of 'Amoeba' is -
A.
Pseudopodia
B.
Parapodia
C.
Flagella
D.
Cilia
Ans:
Pseudopodia
Explanation :
Pseudopods or pseudopodia (singular: pseudopodium) are temporary projections of eukaryotic cells. Cells that possess this faculty are generally referred to as amoeboids. Pseudopodia extend and contract by the reversible assembly of actin subunits into microfilaments. Filaments near the cell's end interact with myosin which causes contraction. The pseudopodium extends itself until the actin reassembles itself into a network. This is how amoebas move, as well as some cells found in animals, such as white blood cells. They are most commonly found on eubacteria.
[22] The number of chromosomes present in normal human being are -
A.
23
B.
46
C.
22
D.
48
Ans:
46
Explanation :
A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions. Chromosomes in humans can be divided into two types: autosomes and sex chromosomes. Certain genetic traits are linked to a person's sex and are passed on through the sex chromosomes.
[23] The longest bone in the human body is -
A.
Ulna
B.
Humerus
C.
Femur
D.
Tibia
Ans:
Femur
Explanation :
The femur or thigh bone, is the most proximal (closest to the center of the body) bone of the leg in tetrapod vertebrates capable of walking or jumping, such as most land mammals, birds, many reptiles such as lizards, and amphibians such as frogs. In vertebrates with four legs such as dogs and horses, the femur is found only in the rear legs. The femur is the largest bone in the human body. The head of the femur articulates with the acetabulum. By most measures the femur is one of the strongest bones in the body.
[24] Which of the following is the smallest bird?
A.
Pigeon
B.
Parrot
C.
Humming bird
D.
House sparrow
Ans:
Humming bird
Explanation :
Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5-13 cm (3-5 in) range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird. They can hover in mid-air by rapidly flapping their wings 12- 80 times per second (depending on the species). They are known as hummingbirds because of the humming sound created by their beating wings, which sometimes sound like bees or other insects.
[25] The edible part of Cabbage is -
A.
fruit
B.
condensed flower
C.
vegetative bud
D.
inflorescence
Ans:
vegetative bud
Explanation :
In cabbage, the edible part is vegetative bud. Vegetative buds are buds from which vegetative parts like leaves and stems arise, rather than flowers. Enlarged buds or parts of buds form the edible portion of some horticultural crops. Cabbage and head lettuce are examples of unusually large terminal buds.
Explanation :
Pseudopods or pseudopodia (singular: pseudopodium) are temporary projections of eukaryotic cells. Cells that possess this faculty are generally referred to as amoeboids. Pseudopodia extend and contract by the reversible assembly of actin subunits into microfilaments. Filaments near the cell's end interact with myosin which causes contraction. The pseudopodium extends itself until the actin reassembles itself into a network. This is how amoebas move, as well as some cells found in animals, such as white blood cells. They are most commonly found on eubacteria.
[22] The number of chromosomes present in normal human being are -
A.
23
B.
46
C.
22
D.
48
Ans:
46
Explanation :
A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions. Chromosomes in humans can be divided into two types: autosomes and sex chromosomes. Certain genetic traits are linked to a person's sex and are passed on through the sex chromosomes.
[23] The longest bone in the human body is -
A.
Ulna
B.
Humerus
C.
Femur
D.
Tibia
Ans:
Femur
Explanation :
The femur or thigh bone, is the most proximal (closest to the center of the body) bone of the leg in tetrapod vertebrates capable of walking or jumping, such as most land mammals, birds, many reptiles such as lizards, and amphibians such as frogs. In vertebrates with four legs such as dogs and horses, the femur is found only in the rear legs. The femur is the largest bone in the human body. The head of the femur articulates with the acetabulum. By most measures the femur is one of the strongest bones in the body.
[24] Which of the following is the smallest bird?
A.
Pigeon
B.
Parrot
C.
Humming bird
D.
House sparrow
Ans:
Humming bird
Explanation :
Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5-13 cm (3-5 in) range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird. They can hover in mid-air by rapidly flapping their wings 12- 80 times per second (depending on the species). They are known as hummingbirds because of the humming sound created by their beating wings, which sometimes sound like bees or other insects.
[25] The edible part of Cabbage is -
A.
fruit
B.
condensed flower
C.
vegetative bud
D.
inflorescence
Ans:
vegetative bud
Explanation :
In cabbage, the edible part is vegetative bud. Vegetative buds are buds from which vegetative parts like leaves and stems arise, rather than flowers. Enlarged buds or parts of buds form the edible portion of some horticultural crops. Cabbage and head lettuce are examples of unusually large terminal buds.
Explanation :
The femur or thigh bone, is the most proximal (closest to the center of the body) bone of the leg in tetrapod vertebrates capable of walking or jumping, such as most land mammals, birds, many reptiles such as lizards, and amphibians such as frogs. In vertebrates with four legs such as dogs and horses, the femur is found only in the rear legs. The femur is the largest bone in the human body. The head of the femur articulates with the acetabulum. By most measures the femur is one of the strongest bones in the body.
[24] Which of the following is the smallest bird?
A.
Pigeon
B.
Parrot
C.
Humming bird
D.
House sparrow
Ans:
Humming bird
Explanation :
Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5-13 cm (3-5 in) range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird. They can hover in mid-air by rapidly flapping their wings 12- 80 times per second (depending on the species). They are known as hummingbirds because of the humming sound created by their beating wings, which sometimes sound like bees or other insects.
[25] The edible part of Cabbage is -
A.
fruit
B.
condensed flower
C.
vegetative bud
D.
inflorescence
Ans:
vegetative bud
Explanation :
In cabbage, the edible part is vegetative bud. Vegetative buds are buds from which vegetative parts like leaves and stems arise, rather than flowers. Enlarged buds or parts of buds form the edible portion of some horticultural crops. Cabbage and head lettuce are examples of unusually large terminal buds.
Explanation :
In cabbage, the edible part is vegetative bud. Vegetative buds are buds from which vegetative parts like leaves and stems arise, rather than flowers. Enlarged buds or parts of buds form the edible portion of some horticultural crops. Cabbage and head lettuce are examples of unusually large terminal buds.