[1] The largest cell in the human body is :
A.
blood cell
B.
sperm cell
C.
Ovum
D.
RBC
Ans:
Ovum
Explanation :
The ovum is the largest cell in the human body, typically visible to the naked eye without the aid of a microscope or other magnification device. The smallest is the male sperm cell, it is one-tenth of the diameter of a human hair. Now, it is true that neurons can have very long extensions or axons, the axon isn't a cell, but a peripheral extension. The actual neuron is tiny compared to the egg cell.
[2] The source of oxygen generated during photosynthesis is:
A.
water
B.
carbon dioxide
C.
chlorophyll
D.
mesophyll cells
Ans:
water
Explanation :
The source of oxygen produced during photosynthesis is the splitting of water molecule into hydrogen and oxygen. Photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product. Although photosynthesis can happen in different ways in different species, some features are always the same. For example, the process always begins when energy from light is absorbed by proteins called photosynthetic reaction centers that contain chlorophyll. In plants, these proteins are held inside organelles called chloroplasts, while in bacteria they are embedded in the plasma membrane.
[3] Which one of the following elements is associated with teeth disorder?
A.
Chlorine
B.
Fluorine
C.
Bromine
D.
Iodine
Ans:
Fluorine
Explanation :
Fluorine is the element that is associated with teeth disorder because the presence of sodium fluoride in drinking water at the level of 2 ppm may cause mottled enamel in teeth, skeletal fluorosis, and may be associated with cancer and other diseases. However, topically applied fluoride (toothpaste, dental rinses) has been shown to help reduce dental caries.
[4] Water in plants is transported by -
A.
cambium
B.
phloem
C.
epidermis
D.
xylem
Ans:
xylem
Explanation :
Water is transported through the plant in Xylem vessels, these begin in the roots and end in the leaves of the plant, water is translocated through a combination of "Transpiration pull" and capillary action. Xylem is one of two "conductive" tissues responsible for moving water and the products of photosynthesis (glucose) through the plant, the tissue responsible for moving the "food" around is Phloem.
[5] Where are the Eucalyptus trees found in abundance -
A.
Mizo Hills
B.
Naga Hills
C.
Manipur Hills
D.
Nilgiri Hills
Ans:
Nilgiri Hills
Explanation :
Eucalyptus belongs to the family Myrtaceae with about 300 species of the genus. The species is one of the fastest growing trees in the world and many species attain great heights. In Indian subcontinent it is mostly found in Nilgiri hills.
[6] All the progeny obtained from a single plant by vegetative propagation are called -
A.
Clones
B.
Pure line
C.
Ind-red line
D.
Pedigree line
Ans:
Clones
Explanation :
A clone is obtained by vegetative propagation of a single plant and it propagates vegetatively in successive generation. It offers excitation for exploiting desirable mutations. It maintains purity of race in heterozygous state. The clones retains their original characteristics after many years of vegetative propagation i.e. they are stable
[7] What is a Sponge?
A.
A fungus
B.
A fossil
C.
A plant
D.
An animal
Ans:
An animal
Explanation :
A sponge is any sessile aquatic animal of the phylum Porifera, with a porous bag-like body structure and a rigid or elastic internal skeleton.
[8] Which among the following helps in circulation of blood?
A.
Arithrocyt us
B.
Blood platelets
C.
Monocytes
D.
Lymphocytes
Ans:
Lymphocytes
Explanation :
Lymphocytes helps in the circulation of blood. A lymphocyte is a type of white blood cell in the vertebrate immune system. The lymphatic system is an open system providing an accessory route for excess interstitial fluid to get returned to the blood. Lymph is essentially recycled blood plasma after it has been filtered from the blood cells and returned to the lymphatic system.
[9] Which among the following elements increases the absorption of water and calcium in plants?
A.
Manganese
B.
Boron
C.
Copper
D.
Molybdenum
Ans:
Boron
Explanation :
Boron increases the absorption of water and calcium in the plants. It helps in the metabolic activities in plants. Boron is necessary in order for sugar to move through protoplasmic membranes.
[10] Penicillin is extracted from -
A.
yeast
B.
algae
C.
fungus
D.
lichen
Ans:
fungus
Explanation :
Penicillin is produced from the genus of fungi "penicillium". All penicillium are b-lactam antibiotics and are used in the treatment of bacterial infections caused by susceptible, usually Gram-positive, organisms
[11] What is the rod shaped bacteria called?
A.
Bacillus
B.
Spirillum
C.
Coccus
D.
Coma
Ans:
Bacillus
Explanation :
Bacillus is a genus of Gram-positive, rodshaped bacteria and a member of the phylum Firmicutes. Bacillus species can be obligate aerobes or facultative anaerobes, and test positive for the enzyme catalase. Bacillus includes both freeliving and pathogenic species. Under stressful environmental conditions, the cells produce oval endospores that can stay dormant for extended periods.
[12] The animal which has become extinct recently in India happens to be -
A.
Golden cat
B.
Cheetah
C.
Wooly wolf
D.
Rhinoceros
Ans:
Cheetah
Explanation :
Cheetahs have been known to exist in India for a very long time, but as a result of hunting and other causes, cheetahs have been extinct in India since the 1940s. The cheetah is the only animal that has been described extinct in India in the last 100 years.
[13] Which one of the following is found only in women?
A.
Thyroid
B.
Pituitary
C.
Ovary
D.
Adenoid
Ans:
Ovary
Explanation :
Men don't have ovary. Women have a pair of ovaries which is a sexual gland responsible for producing estrogen. In men, testis has same functions as ovary in women. it produces testosterone.
[14] ‘Darwin finches’ refer to a group of :
A.
Fishes
B.
Lizards
C.
Birds
D.
Amphibians
Ans:
Birds
Explanation :
Darwin’s finches are a group of about 15 species of passerine birds. They often are classified as the subfamily Geospizinae or tribe Geospizini. They were first collected by Charles Darwin on the Galapagos Islands during the second voyage of the Beagle. All are found only on the Galapagos Islands. The birds vary in size from 10 to 20 cm and weigh between 8 and 38 grams. The smallest are the warbler-finches and the largest is the Vegetarian Finch. The most important differences between species are in the size and shape of their beaks, and the beaks are highly adapted to different food sources. The birds are all dull-coloured.
[15] The tissue in man where no cell division occurs after birth is -
A.
skeletal
B.
nerves
C.
connective
D.
germinal
Ans:
nerves
Explanation :
A nerve is an enclosed, cable-like bundle of axons (the long, slender projections of neurons) in the peripheral nervous system. A nerve provides a common pathway for the electrochemical nerve impulses that are transmitted along each of the axons to peripheral organs. A nerve conveys information in the form of electrochemical impulses (known as nerve impulses or action potentials) carried by the individual neurons that make up the nerve. These impulses are extremely fast, with some myelinated neurons conducting at speeds up to 120 m/s.
[16] Sea sickness is due to the effect of the motion of ship, on -
A.
internalear
B.
heart
C.
stomach
D.
eyes
Ans:
stomach
Explanation :
Motion sickness or kinetosis, also known as travel sickness, is a condition in which a disagreement exists between visually perceived movement and the vestibular system's sense of movement. Depending on the cause it can also be rcferred to as seasickness, car sickness, simulation sickness or airsickness. If the motion causing nausea is not resolved, the sufferer will usually vomit. Ginger is reported to calm the pyloric valve located at the base of the stomach. This relaxation of the valve allows the stomach to operate normally whereby the contents will enter the small intestine instead of being retained within the stomach.
[17] The name of the first cloned sheep was -
A.
Molly
B.
Dolly
C.
Jolly
D.
Roly
Ans:
Dolly
Explanation :
Dolly was a female domestic sheep, and the first mammal to be cloned from an adult somatic cell, using the process of nuclear transfer. She was cloned by Ian Wilmut, Keith Campbell and colleagues at the Roslin Institute and the biotechnology company PPL Therapeutics near Edinburgh in Scotland. The cell used as the donor for the cloning of Dolly was taken from a mammary gland, and the production of a healthy clone therefore proved that a cell taken from a specific part of the body could recreate a whole individual.
[18] Through ‘Photosynthesis’ green plants generate -
A.
inorganic materials
B.
minerals
C.
organic materials
D.
nutrients
Ans:
organic materials
Explanation :
Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. Photosynthesis in green plants harnesses the energy of sunlight to convert carbon dioxide, water, and minerals into organic compounds and gaseous oxygen. The principal organic products of plant photosynthesis are carbohydrates. Formation of the simple carbohydrate glucose is shown by the equation: 6CO2 (carbon dioxide) + 12H2O (water) → C6H12O6 (glucose) + 6O2 (oxygen) + H2O (water).
[19] The first photosynthetic oxygen liberating organisms to appear on earth were :
A.
Cyanobacteria
B.
Bryophytes
C.
Green algae
D.
Bacteria
Ans:
Cyanobacteria
Explanation :
Cyanobacteria or blue green algae were the photosynthetic organisms that lived in the ancient ocean. It liberated the oxygen found in the iron oxide.
[20] Which is the anticoagulant substance in blood?
A.
Fibrinogen
B.
Heparin
C.
Thrombin
D.
Globin
Ans:
Heparin
Explanation :
Heparin, a highly sulfated glycosaminoglycan, is widely used as an inject able anticoagulant, and has the highest negative charge density of any known biological molecule. It can also be used to form an inner anticoagulant surface on various experimental and medical devices such as test tubes and renal dialysis machines. Although it is used principally in medicine for anticoagulation, its true physiological role in the body remains unclear, because blood anti-coagulation is achieved mostly by heparan sulfate proteoglycans derived from endothelial cells.
[21] Sugarcane is a type of -
A.
creeper
B.
tree
C.
shrub
D.
grass
Ans:
grass
Explanation :
Sugarcane, (Saccharum officinarum) is a perennial grass of the family Poaceae, primarily cultivated for its juice from which sugar is processed. Most of the world's sugarcane is grown in subtropical and tropical areas. Sugar cane is a perennial tropical grass with tall stout jointed stems from which sugar is extracted.
[22] Mineral constituent of chlorophyll is -
A.
Iron
B.
Magnesium
C.
Calcium
D.
Potassium
Ans:
Magnesium
Explanation :
Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesize carbohydrates from CO2 and water. This process is known as photosynthesis and is the basis for sustaining the life processes of all plants. Since animals and humans obtain their food supply by eating plants, photosynthesis can be said to be the source of our life also. Chlorophyll is the molecule that traps this `most elusive of all powers' - and is called a photoreceptor. It is found in the chloroplasts of green plants, and is what makes green plants, green.
[23] Which of the part of tongue bears cells for sour taste?
A.
Front
B.
Back
C.
Sides
D.
Middle
Ans:
Sides
Explanation :
Taste buds probably play the most important part in helping us to enjoy the many flavors of food. Our taste buds can recognize four basic kinds of tastes: sweet, salty, sour, and bitter. The salty/sweet taste buds are located near the front of our tongue; the sour taste buds line the sides of our tongue; and the bitter taste buds are found at the very back of our tongue.
[24] Who discovered malaria causing germs?
A.
Christiaan Bernard
B.
Charles Louis Alphonse Laveran
C.
Dmitry Ivanovsky
D.
Martinus William Beijerinck
Ans:
Charles Louis Alphonse Laveran
Explanation :
Charles Louis Alphonse Laveran, a French army surgeon stationed in Constantine, Algeria, discovered that malaria was caused by a protozoan parasite in 1880.
[25] Which one of the following is not an example of eukaryotic organism?
A.
Yeast
B.
Bacteria
C.
Plant
D.
Human being
Ans:
Bacteria
Explanation :
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes.
Explanation :
The ovum is the largest cell in the human body, typically visible to the naked eye without the aid of a microscope or other magnification device. The smallest is the male sperm cell, it is one-tenth of the diameter of a human hair. Now, it is true that neurons can have very long extensions or axons, the axon isn't a cell, but a peripheral extension. The actual neuron is tiny compared to the egg cell.
[2] The source of oxygen generated during photosynthesis is:
A.
water
B.
carbon dioxide
C.
chlorophyll
D.
mesophyll cells
Ans:
water
Explanation :
The source of oxygen produced during photosynthesis is the splitting of water molecule into hydrogen and oxygen. Photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product. Although photosynthesis can happen in different ways in different species, some features are always the same. For example, the process always begins when energy from light is absorbed by proteins called photosynthetic reaction centers that contain chlorophyll. In plants, these proteins are held inside organelles called chloroplasts, while in bacteria they are embedded in the plasma membrane.
[3] Which one of the following elements is associated with teeth disorder?
A.
Chlorine
B.
Fluorine
C.
Bromine
D.
Iodine
Ans:
Fluorine
Explanation :
Fluorine is the element that is associated with teeth disorder because the presence of sodium fluoride in drinking water at the level of 2 ppm may cause mottled enamel in teeth, skeletal fluorosis, and may be associated with cancer and other diseases. However, topically applied fluoride (toothpaste, dental rinses) has been shown to help reduce dental caries.
[4] Water in plants is transported by -
A.
cambium
B.
phloem
C.
epidermis
D.
xylem
Ans:
xylem
Explanation :
Water is transported through the plant in Xylem vessels, these begin in the roots and end in the leaves of the plant, water is translocated through a combination of "Transpiration pull" and capillary action. Xylem is one of two "conductive" tissues responsible for moving water and the products of photosynthesis (glucose) through the plant, the tissue responsible for moving the "food" around is Phloem.
[5] Where are the Eucalyptus trees found in abundance -
A.
Mizo Hills
B.
Naga Hills
C.
Manipur Hills
D.
Nilgiri Hills
Ans:
Nilgiri Hills
Explanation :
Eucalyptus belongs to the family Myrtaceae with about 300 species of the genus. The species is one of the fastest growing trees in the world and many species attain great heights. In Indian subcontinent it is mostly found in Nilgiri hills.
[6] All the progeny obtained from a single plant by vegetative propagation are called -
A.
Clones
B.
Pure line
C.
Ind-red line
D.
Pedigree line
Ans:
Clones
Explanation :
A clone is obtained by vegetative propagation of a single plant and it propagates vegetatively in successive generation. It offers excitation for exploiting desirable mutations. It maintains purity of race in heterozygous state. The clones retains their original characteristics after many years of vegetative propagation i.e. they are stable
[7] What is a Sponge?
A.
A fungus
B.
A fossil
C.
A plant
D.
An animal
Ans:
An animal
Explanation :
A sponge is any sessile aquatic animal of the phylum Porifera, with a porous bag-like body structure and a rigid or elastic internal skeleton.
[8] Which among the following helps in circulation of blood?
A.
Arithrocyt us
B.
Blood platelets
C.
Monocytes
D.
Lymphocytes
Ans:
Lymphocytes
Explanation :
Lymphocytes helps in the circulation of blood. A lymphocyte is a type of white blood cell in the vertebrate immune system. The lymphatic system is an open system providing an accessory route for excess interstitial fluid to get returned to the blood. Lymph is essentially recycled blood plasma after it has been filtered from the blood cells and returned to the lymphatic system.
[9] Which among the following elements increases the absorption of water and calcium in plants?
A.
Manganese
B.
Boron
C.
Copper
D.
Molybdenum
Ans:
Boron
Explanation :
Boron increases the absorption of water and calcium in the plants. It helps in the metabolic activities in plants. Boron is necessary in order for sugar to move through protoplasmic membranes.
[10] Penicillin is extracted from -
A.
yeast
B.
algae
C.
fungus
D.
lichen
Ans:
fungus
Explanation :
Penicillin is produced from the genus of fungi "penicillium". All penicillium are b-lactam antibiotics and are used in the treatment of bacterial infections caused by susceptible, usually Gram-positive, organisms
[11] What is the rod shaped bacteria called?
A.
Bacillus
B.
Spirillum
C.
Coccus
D.
Coma
Ans:
Bacillus
Explanation :
Bacillus is a genus of Gram-positive, rodshaped bacteria and a member of the phylum Firmicutes. Bacillus species can be obligate aerobes or facultative anaerobes, and test positive for the enzyme catalase. Bacillus includes both freeliving and pathogenic species. Under stressful environmental conditions, the cells produce oval endospores that can stay dormant for extended periods.
[12] The animal which has become extinct recently in India happens to be -
A.
Golden cat
B.
Cheetah
C.
Wooly wolf
D.
Rhinoceros
Ans:
Cheetah
Explanation :
Cheetahs have been known to exist in India for a very long time, but as a result of hunting and other causes, cheetahs have been extinct in India since the 1940s. The cheetah is the only animal that has been described extinct in India in the last 100 years.
[13] Which one of the following is found only in women?
A.
Thyroid
B.
Pituitary
C.
Ovary
D.
Adenoid
Ans:
Ovary
Explanation :
Men don't have ovary. Women have a pair of ovaries which is a sexual gland responsible for producing estrogen. In men, testis has same functions as ovary in women. it produces testosterone.
[14] ‘Darwin finches’ refer to a group of :
A.
Fishes
B.
Lizards
C.
Birds
D.
Amphibians
Ans:
Birds
Explanation :
Darwin’s finches are a group of about 15 species of passerine birds. They often are classified as the subfamily Geospizinae or tribe Geospizini. They were first collected by Charles Darwin on the Galapagos Islands during the second voyage of the Beagle. All are found only on the Galapagos Islands. The birds vary in size from 10 to 20 cm and weigh between 8 and 38 grams. The smallest are the warbler-finches and the largest is the Vegetarian Finch. The most important differences between species are in the size and shape of their beaks, and the beaks are highly adapted to different food sources. The birds are all dull-coloured.
[15] The tissue in man where no cell division occurs after birth is -
A.
skeletal
B.
nerves
C.
connective
D.
germinal
Ans:
nerves
Explanation :
A nerve is an enclosed, cable-like bundle of axons (the long, slender projections of neurons) in the peripheral nervous system. A nerve provides a common pathway for the electrochemical nerve impulses that are transmitted along each of the axons to peripheral organs. A nerve conveys information in the form of electrochemical impulses (known as nerve impulses or action potentials) carried by the individual neurons that make up the nerve. These impulses are extremely fast, with some myelinated neurons conducting at speeds up to 120 m/s.
[16] Sea sickness is due to the effect of the motion of ship, on -
A.
internalear
B.
heart
C.
stomach
D.
eyes
Ans:
stomach
Explanation :
Motion sickness or kinetosis, also known as travel sickness, is a condition in which a disagreement exists between visually perceived movement and the vestibular system's sense of movement. Depending on the cause it can also be rcferred to as seasickness, car sickness, simulation sickness or airsickness. If the motion causing nausea is not resolved, the sufferer will usually vomit. Ginger is reported to calm the pyloric valve located at the base of the stomach. This relaxation of the valve allows the stomach to operate normally whereby the contents will enter the small intestine instead of being retained within the stomach.
[17] The name of the first cloned sheep was -
A.
Molly
B.
Dolly
C.
Jolly
D.
Roly
Ans:
Dolly
Explanation :
Dolly was a female domestic sheep, and the first mammal to be cloned from an adult somatic cell, using the process of nuclear transfer. She was cloned by Ian Wilmut, Keith Campbell and colleagues at the Roslin Institute and the biotechnology company PPL Therapeutics near Edinburgh in Scotland. The cell used as the donor for the cloning of Dolly was taken from a mammary gland, and the production of a healthy clone therefore proved that a cell taken from a specific part of the body could recreate a whole individual.
[18] Through ‘Photosynthesis’ green plants generate -
A.
inorganic materials
B.
minerals
C.
organic materials
D.
nutrients
Ans:
organic materials
Explanation :
Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. Photosynthesis in green plants harnesses the energy of sunlight to convert carbon dioxide, water, and minerals into organic compounds and gaseous oxygen. The principal organic products of plant photosynthesis are carbohydrates. Formation of the simple carbohydrate glucose is shown by the equation: 6CO2 (carbon dioxide) + 12H2O (water) → C6H12O6 (glucose) + 6O2 (oxygen) + H2O (water).
[19] The first photosynthetic oxygen liberating organisms to appear on earth were :
A.
Cyanobacteria
B.
Bryophytes
C.
Green algae
D.
Bacteria
Ans:
Cyanobacteria
Explanation :
Cyanobacteria or blue green algae were the photosynthetic organisms that lived in the ancient ocean. It liberated the oxygen found in the iron oxide.
[20] Which is the anticoagulant substance in blood?
A.
Fibrinogen
B.
Heparin
C.
Thrombin
D.
Globin
Ans:
Heparin
Explanation :
Heparin, a highly sulfated glycosaminoglycan, is widely used as an inject able anticoagulant, and has the highest negative charge density of any known biological molecule. It can also be used to form an inner anticoagulant surface on various experimental and medical devices such as test tubes and renal dialysis machines. Although it is used principally in medicine for anticoagulation, its true physiological role in the body remains unclear, because blood anti-coagulation is achieved mostly by heparan sulfate proteoglycans derived from endothelial cells.
[21] Sugarcane is a type of -
A.
creeper
B.
tree
C.
shrub
D.
grass
Ans:
grass
Explanation :
Sugarcane, (Saccharum officinarum) is a perennial grass of the family Poaceae, primarily cultivated for its juice from which sugar is processed. Most of the world's sugarcane is grown in subtropical and tropical areas. Sugar cane is a perennial tropical grass with tall stout jointed stems from which sugar is extracted.
[22] Mineral constituent of chlorophyll is -
A.
Iron
B.
Magnesium
C.
Calcium
D.
Potassium
Ans:
Magnesium
Explanation :
Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesize carbohydrates from CO2 and water. This process is known as photosynthesis and is the basis for sustaining the life processes of all plants. Since animals and humans obtain their food supply by eating plants, photosynthesis can be said to be the source of our life also. Chlorophyll is the molecule that traps this `most elusive of all powers' - and is called a photoreceptor. It is found in the chloroplasts of green plants, and is what makes green plants, green.
[23] Which of the part of tongue bears cells for sour taste?
A.
Front
B.
Back
C.
Sides
D.
Middle
Ans:
Sides
Explanation :
Taste buds probably play the most important part in helping us to enjoy the many flavors of food. Our taste buds can recognize four basic kinds of tastes: sweet, salty, sour, and bitter. The salty/sweet taste buds are located near the front of our tongue; the sour taste buds line the sides of our tongue; and the bitter taste buds are found at the very back of our tongue.
[24] Who discovered malaria causing germs?
A.
Christiaan Bernard
B.
Charles Louis Alphonse Laveran
C.
Dmitry Ivanovsky
D.
Martinus William Beijerinck
Ans:
Charles Louis Alphonse Laveran
Explanation :
Charles Louis Alphonse Laveran, a French army surgeon stationed in Constantine, Algeria, discovered that malaria was caused by a protozoan parasite in 1880.
[25] Which one of the following is not an example of eukaryotic organism?
A.
Yeast
B.
Bacteria
C.
Plant
D.
Human being
Ans:
Bacteria
Explanation :
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes.
Explanation :
Fluorine is the element that is associated with teeth disorder because the presence of sodium fluoride in drinking water at the level of 2 ppm may cause mottled enamel in teeth, skeletal fluorosis, and may be associated with cancer and other diseases. However, topically applied fluoride (toothpaste, dental rinses) has been shown to help reduce dental caries.
[4] Water in plants is transported by -
A.
cambium
B.
phloem
C.
epidermis
D.
xylem
Ans:
xylem
Explanation :
Water is transported through the plant in Xylem vessels, these begin in the roots and end in the leaves of the plant, water is translocated through a combination of "Transpiration pull" and capillary action. Xylem is one of two "conductive" tissues responsible for moving water and the products of photosynthesis (glucose) through the plant, the tissue responsible for moving the "food" around is Phloem.
[5] Where are the Eucalyptus trees found in abundance -
A.
Mizo Hills
B.
Naga Hills
C.
Manipur Hills
D.
Nilgiri Hills
Ans:
Nilgiri Hills
Explanation :
Eucalyptus belongs to the family Myrtaceae with about 300 species of the genus. The species is one of the fastest growing trees in the world and many species attain great heights. In Indian subcontinent it is mostly found in Nilgiri hills.
[6] All the progeny obtained from a single plant by vegetative propagation are called -
A.
Clones
B.
Pure line
C.
Ind-red line
D.
Pedigree line
Ans:
Clones
Explanation :
A clone is obtained by vegetative propagation of a single plant and it propagates vegetatively in successive generation. It offers excitation for exploiting desirable mutations. It maintains purity of race in heterozygous state. The clones retains their original characteristics after many years of vegetative propagation i.e. they are stable
[7] What is a Sponge?
A.
A fungus
B.
A fossil
C.
A plant
D.
An animal
Ans:
An animal
Explanation :
A sponge is any sessile aquatic animal of the phylum Porifera, with a porous bag-like body structure and a rigid or elastic internal skeleton.
[8] Which among the following helps in circulation of blood?
A.
Arithrocyt us
B.
Blood platelets
C.
Monocytes
D.
Lymphocytes
Ans:
Lymphocytes
Explanation :
Lymphocytes helps in the circulation of blood. A lymphocyte is a type of white blood cell in the vertebrate immune system. The lymphatic system is an open system providing an accessory route for excess interstitial fluid to get returned to the blood. Lymph is essentially recycled blood plasma after it has been filtered from the blood cells and returned to the lymphatic system.
[9] Which among the following elements increases the absorption of water and calcium in plants?
A.
Manganese
B.
Boron
C.
Copper
D.
Molybdenum
Ans:
Boron
Explanation :
Boron increases the absorption of water and calcium in the plants. It helps in the metabolic activities in plants. Boron is necessary in order for sugar to move through protoplasmic membranes.
[10] Penicillin is extracted from -
A.
yeast
B.
algae
C.
fungus
D.
lichen
Ans:
fungus
Explanation :
Penicillin is produced from the genus of fungi "penicillium". All penicillium are b-lactam antibiotics and are used in the treatment of bacterial infections caused by susceptible, usually Gram-positive, organisms
[11] What is the rod shaped bacteria called?
A.
Bacillus
B.
Spirillum
C.
Coccus
D.
Coma
Ans:
Bacillus
Explanation :
Bacillus is a genus of Gram-positive, rodshaped bacteria and a member of the phylum Firmicutes. Bacillus species can be obligate aerobes or facultative anaerobes, and test positive for the enzyme catalase. Bacillus includes both freeliving and pathogenic species. Under stressful environmental conditions, the cells produce oval endospores that can stay dormant for extended periods.
[12] The animal which has become extinct recently in India happens to be -
A.
Golden cat
B.
Cheetah
C.
Wooly wolf
D.
Rhinoceros
Ans:
Cheetah
Explanation :
Cheetahs have been known to exist in India for a very long time, but as a result of hunting and other causes, cheetahs have been extinct in India since the 1940s. The cheetah is the only animal that has been described extinct in India in the last 100 years.
[13] Which one of the following is found only in women?
A.
Thyroid
B.
Pituitary
C.
Ovary
D.
Adenoid
Ans:
Ovary
Explanation :
Men don't have ovary. Women have a pair of ovaries which is a sexual gland responsible for producing estrogen. In men, testis has same functions as ovary in women. it produces testosterone.
[14] ‘Darwin finches’ refer to a group of :
A.
Fishes
B.
Lizards
C.
Birds
D.
Amphibians
Ans:
Birds
Explanation :
Darwin’s finches are a group of about 15 species of passerine birds. They often are classified as the subfamily Geospizinae or tribe Geospizini. They were first collected by Charles Darwin on the Galapagos Islands during the second voyage of the Beagle. All are found only on the Galapagos Islands. The birds vary in size from 10 to 20 cm and weigh between 8 and 38 grams. The smallest are the warbler-finches and the largest is the Vegetarian Finch. The most important differences between species are in the size and shape of their beaks, and the beaks are highly adapted to different food sources. The birds are all dull-coloured.
[15] The tissue in man where no cell division occurs after birth is -
A.
skeletal
B.
nerves
C.
connective
D.
germinal
Ans:
nerves
Explanation :
A nerve is an enclosed, cable-like bundle of axons (the long, slender projections of neurons) in the peripheral nervous system. A nerve provides a common pathway for the electrochemical nerve impulses that are transmitted along each of the axons to peripheral organs. A nerve conveys information in the form of electrochemical impulses (known as nerve impulses or action potentials) carried by the individual neurons that make up the nerve. These impulses are extremely fast, with some myelinated neurons conducting at speeds up to 120 m/s.
[16] Sea sickness is due to the effect of the motion of ship, on -
A.
internalear
B.
heart
C.
stomach
D.
eyes
Ans:
stomach
Explanation :
Motion sickness or kinetosis, also known as travel sickness, is a condition in which a disagreement exists between visually perceived movement and the vestibular system's sense of movement. Depending on the cause it can also be rcferred to as seasickness, car sickness, simulation sickness or airsickness. If the motion causing nausea is not resolved, the sufferer will usually vomit. Ginger is reported to calm the pyloric valve located at the base of the stomach. This relaxation of the valve allows the stomach to operate normally whereby the contents will enter the small intestine instead of being retained within the stomach.
[17] The name of the first cloned sheep was -
A.
Molly
B.
Dolly
C.
Jolly
D.
Roly
Ans:
Dolly
Explanation :
Dolly was a female domestic sheep, and the first mammal to be cloned from an adult somatic cell, using the process of nuclear transfer. She was cloned by Ian Wilmut, Keith Campbell and colleagues at the Roslin Institute and the biotechnology company PPL Therapeutics near Edinburgh in Scotland. The cell used as the donor for the cloning of Dolly was taken from a mammary gland, and the production of a healthy clone therefore proved that a cell taken from a specific part of the body could recreate a whole individual.
[18] Through ‘Photosynthesis’ green plants generate -
A.
inorganic materials
B.
minerals
C.
organic materials
D.
nutrients
Ans:
organic materials
Explanation :
Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. Photosynthesis in green plants harnesses the energy of sunlight to convert carbon dioxide, water, and minerals into organic compounds and gaseous oxygen. The principal organic products of plant photosynthesis are carbohydrates. Formation of the simple carbohydrate glucose is shown by the equation: 6CO2 (carbon dioxide) + 12H2O (water) → C6H12O6 (glucose) + 6O2 (oxygen) + H2O (water).
[19] The first photosynthetic oxygen liberating organisms to appear on earth were :
A.
Cyanobacteria
B.
Bryophytes
C.
Green algae
D.
Bacteria
Ans:
Cyanobacteria
Explanation :
Cyanobacteria or blue green algae were the photosynthetic organisms that lived in the ancient ocean. It liberated the oxygen found in the iron oxide.
[20] Which is the anticoagulant substance in blood?
A.
Fibrinogen
B.
Heparin
C.
Thrombin
D.
Globin
Ans:
Heparin
Explanation :
Heparin, a highly sulfated glycosaminoglycan, is widely used as an inject able anticoagulant, and has the highest negative charge density of any known biological molecule. It can also be used to form an inner anticoagulant surface on various experimental and medical devices such as test tubes and renal dialysis machines. Although it is used principally in medicine for anticoagulation, its true physiological role in the body remains unclear, because blood anti-coagulation is achieved mostly by heparan sulfate proteoglycans derived from endothelial cells.
[21] Sugarcane is a type of -
A.
creeper
B.
tree
C.
shrub
D.
grass
Ans:
grass
Explanation :
Sugarcane, (Saccharum officinarum) is a perennial grass of the family Poaceae, primarily cultivated for its juice from which sugar is processed. Most of the world's sugarcane is grown in subtropical and tropical areas. Sugar cane is a perennial tropical grass with tall stout jointed stems from which sugar is extracted.
[22] Mineral constituent of chlorophyll is -
A.
Iron
B.
Magnesium
C.
Calcium
D.
Potassium
Ans:
Magnesium
Explanation :
Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesize carbohydrates from CO2 and water. This process is known as photosynthesis and is the basis for sustaining the life processes of all plants. Since animals and humans obtain their food supply by eating plants, photosynthesis can be said to be the source of our life also. Chlorophyll is the molecule that traps this `most elusive of all powers' - and is called a photoreceptor. It is found in the chloroplasts of green plants, and is what makes green plants, green.
[23] Which of the part of tongue bears cells for sour taste?
A.
Front
B.
Back
C.
Sides
D.
Middle
Ans:
Sides
Explanation :
Taste buds probably play the most important part in helping us to enjoy the many flavors of food. Our taste buds can recognize four basic kinds of tastes: sweet, salty, sour, and bitter. The salty/sweet taste buds are located near the front of our tongue; the sour taste buds line the sides of our tongue; and the bitter taste buds are found at the very back of our tongue.
[24] Who discovered malaria causing germs?
A.
Christiaan Bernard
B.
Charles Louis Alphonse Laveran
C.
Dmitry Ivanovsky
D.
Martinus William Beijerinck
Ans:
Charles Louis Alphonse Laveran
Explanation :
Charles Louis Alphonse Laveran, a French army surgeon stationed in Constantine, Algeria, discovered that malaria was caused by a protozoan parasite in 1880.
[25] Which one of the following is not an example of eukaryotic organism?
A.
Yeast
B.
Bacteria
C.
Plant
D.
Human being
Ans:
Bacteria
Explanation :
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes.
Explanation :
Eucalyptus belongs to the family Myrtaceae with about 300 species of the genus. The species is one of the fastest growing trees in the world and many species attain great heights. In Indian subcontinent it is mostly found in Nilgiri hills.
[6] All the progeny obtained from a single plant by vegetative propagation are called -
A.
Clones
B.
Pure line
C.
Ind-red line
D.
Pedigree line
Ans:
Clones
Explanation :
A clone is obtained by vegetative propagation of a single plant and it propagates vegetatively in successive generation. It offers excitation for exploiting desirable mutations. It maintains purity of race in heterozygous state. The clones retains their original characteristics after many years of vegetative propagation i.e. they are stable
[7] What is a Sponge?
A.
A fungus
B.
A fossil
C.
A plant
D.
An animal
Ans:
An animal
Explanation :
A sponge is any sessile aquatic animal of the phylum Porifera, with a porous bag-like body structure and a rigid or elastic internal skeleton.
[8] Which among the following helps in circulation of blood?
A.
Arithrocyt us
B.
Blood platelets
C.
Monocytes
D.
Lymphocytes
Ans:
Lymphocytes
Explanation :
Lymphocytes helps in the circulation of blood. A lymphocyte is a type of white blood cell in the vertebrate immune system. The lymphatic system is an open system providing an accessory route for excess interstitial fluid to get returned to the blood. Lymph is essentially recycled blood plasma after it has been filtered from the blood cells and returned to the lymphatic system.
[9] Which among the following elements increases the absorption of water and calcium in plants?
A.
Manganese
B.
Boron
C.
Copper
D.
Molybdenum
Ans:
Boron
Explanation :
Boron increases the absorption of water and calcium in the plants. It helps in the metabolic activities in plants. Boron is necessary in order for sugar to move through protoplasmic membranes.
[10] Penicillin is extracted from -
A.
yeast
B.
algae
C.
fungus
D.
lichen
Ans:
fungus
Explanation :
Penicillin is produced from the genus of fungi "penicillium". All penicillium are b-lactam antibiotics and are used in the treatment of bacterial infections caused by susceptible, usually Gram-positive, organisms
[11] What is the rod shaped bacteria called?
A.
Bacillus
B.
Spirillum
C.
Coccus
D.
Coma
Ans:
Bacillus
Explanation :
Bacillus is a genus of Gram-positive, rodshaped bacteria and a member of the phylum Firmicutes. Bacillus species can be obligate aerobes or facultative anaerobes, and test positive for the enzyme catalase. Bacillus includes both freeliving and pathogenic species. Under stressful environmental conditions, the cells produce oval endospores that can stay dormant for extended periods.
[12] The animal which has become extinct recently in India happens to be -
A.
Golden cat
B.
Cheetah
C.
Wooly wolf
D.
Rhinoceros
Ans:
Cheetah
Explanation :
Cheetahs have been known to exist in India for a very long time, but as a result of hunting and other causes, cheetahs have been extinct in India since the 1940s. The cheetah is the only animal that has been described extinct in India in the last 100 years.
[13] Which one of the following is found only in women?
A.
Thyroid
B.
Pituitary
C.
Ovary
D.
Adenoid
Ans:
Ovary
Explanation :
Men don't have ovary. Women have a pair of ovaries which is a sexual gland responsible for producing estrogen. In men, testis has same functions as ovary in women. it produces testosterone.
[14] ‘Darwin finches’ refer to a group of :
A.
Fishes
B.
Lizards
C.
Birds
D.
Amphibians
Ans:
Birds
Explanation :
Darwin’s finches are a group of about 15 species of passerine birds. They often are classified as the subfamily Geospizinae or tribe Geospizini. They were first collected by Charles Darwin on the Galapagos Islands during the second voyage of the Beagle. All are found only on the Galapagos Islands. The birds vary in size from 10 to 20 cm and weigh between 8 and 38 grams. The smallest are the warbler-finches and the largest is the Vegetarian Finch. The most important differences between species are in the size and shape of their beaks, and the beaks are highly adapted to different food sources. The birds are all dull-coloured.
[15] The tissue in man where no cell division occurs after birth is -
A.
skeletal
B.
nerves
C.
connective
D.
germinal
Ans:
nerves
Explanation :
A nerve is an enclosed, cable-like bundle of axons (the long, slender projections of neurons) in the peripheral nervous system. A nerve provides a common pathway for the electrochemical nerve impulses that are transmitted along each of the axons to peripheral organs. A nerve conveys information in the form of electrochemical impulses (known as nerve impulses or action potentials) carried by the individual neurons that make up the nerve. These impulses are extremely fast, with some myelinated neurons conducting at speeds up to 120 m/s.
[16] Sea sickness is due to the effect of the motion of ship, on -
A.
internalear
B.
heart
C.
stomach
D.
eyes
Ans:
stomach
Explanation :
Motion sickness or kinetosis, also known as travel sickness, is a condition in which a disagreement exists between visually perceived movement and the vestibular system's sense of movement. Depending on the cause it can also be rcferred to as seasickness, car sickness, simulation sickness or airsickness. If the motion causing nausea is not resolved, the sufferer will usually vomit. Ginger is reported to calm the pyloric valve located at the base of the stomach. This relaxation of the valve allows the stomach to operate normally whereby the contents will enter the small intestine instead of being retained within the stomach.
[17] The name of the first cloned sheep was -
A.
Molly
B.
Dolly
C.
Jolly
D.
Roly
Ans:
Dolly
Explanation :
Dolly was a female domestic sheep, and the first mammal to be cloned from an adult somatic cell, using the process of nuclear transfer. She was cloned by Ian Wilmut, Keith Campbell and colleagues at the Roslin Institute and the biotechnology company PPL Therapeutics near Edinburgh in Scotland. The cell used as the donor for the cloning of Dolly was taken from a mammary gland, and the production of a healthy clone therefore proved that a cell taken from a specific part of the body could recreate a whole individual.
[18] Through ‘Photosynthesis’ green plants generate -
A.
inorganic materials
B.
minerals
C.
organic materials
D.
nutrients
Ans:
organic materials
Explanation :
Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. Photosynthesis in green plants harnesses the energy of sunlight to convert carbon dioxide, water, and minerals into organic compounds and gaseous oxygen. The principal organic products of plant photosynthesis are carbohydrates. Formation of the simple carbohydrate glucose is shown by the equation: 6CO2 (carbon dioxide) + 12H2O (water) → C6H12O6 (glucose) + 6O2 (oxygen) + H2O (water).
[19] The first photosynthetic oxygen liberating organisms to appear on earth were :
A.
Cyanobacteria
B.
Bryophytes
C.
Green algae
D.
Bacteria
Ans:
Cyanobacteria
Explanation :
Cyanobacteria or blue green algae were the photosynthetic organisms that lived in the ancient ocean. It liberated the oxygen found in the iron oxide.
[20] Which is the anticoagulant substance in blood?
A.
Fibrinogen
B.
Heparin
C.
Thrombin
D.
Globin
Ans:
Heparin
Explanation :
Heparin, a highly sulfated glycosaminoglycan, is widely used as an inject able anticoagulant, and has the highest negative charge density of any known biological molecule. It can also be used to form an inner anticoagulant surface on various experimental and medical devices such as test tubes and renal dialysis machines. Although it is used principally in medicine for anticoagulation, its true physiological role in the body remains unclear, because blood anti-coagulation is achieved mostly by heparan sulfate proteoglycans derived from endothelial cells.
[21] Sugarcane is a type of -
A.
creeper
B.
tree
C.
shrub
D.
grass
Ans:
grass
Explanation :
Sugarcane, (Saccharum officinarum) is a perennial grass of the family Poaceae, primarily cultivated for its juice from which sugar is processed. Most of the world's sugarcane is grown in subtropical and tropical areas. Sugar cane is a perennial tropical grass with tall stout jointed stems from which sugar is extracted.
[22] Mineral constituent of chlorophyll is -
A.
Iron
B.
Magnesium
C.
Calcium
D.
Potassium
Ans:
Magnesium
Explanation :
Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesize carbohydrates from CO2 and water. This process is known as photosynthesis and is the basis for sustaining the life processes of all plants. Since animals and humans obtain their food supply by eating plants, photosynthesis can be said to be the source of our life also. Chlorophyll is the molecule that traps this `most elusive of all powers' - and is called a photoreceptor. It is found in the chloroplasts of green plants, and is what makes green plants, green.
[23] Which of the part of tongue bears cells for sour taste?
A.
Front
B.
Back
C.
Sides
D.
Middle
Ans:
Sides
Explanation :
Taste buds probably play the most important part in helping us to enjoy the many flavors of food. Our taste buds can recognize four basic kinds of tastes: sweet, salty, sour, and bitter. The salty/sweet taste buds are located near the front of our tongue; the sour taste buds line the sides of our tongue; and the bitter taste buds are found at the very back of our tongue.
[24] Who discovered malaria causing germs?
A.
Christiaan Bernard
B.
Charles Louis Alphonse Laveran
C.
Dmitry Ivanovsky
D.
Martinus William Beijerinck
Ans:
Charles Louis Alphonse Laveran
Explanation :
Charles Louis Alphonse Laveran, a French army surgeon stationed in Constantine, Algeria, discovered that malaria was caused by a protozoan parasite in 1880.
[25] Which one of the following is not an example of eukaryotic organism?
A.
Yeast
B.
Bacteria
C.
Plant
D.
Human being
Ans:
Bacteria
Explanation :
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes.
Explanation :
A sponge is any sessile aquatic animal of the phylum Porifera, with a porous bag-like body structure and a rigid or elastic internal skeleton.
[8] Which among the following helps in circulation of blood?
A.
Arithrocyt us
B.
Blood platelets
C.
Monocytes
D.
Lymphocytes
Ans:
Lymphocytes
Explanation :
Lymphocytes helps in the circulation of blood. A lymphocyte is a type of white blood cell in the vertebrate immune system. The lymphatic system is an open system providing an accessory route for excess interstitial fluid to get returned to the blood. Lymph is essentially recycled blood plasma after it has been filtered from the blood cells and returned to the lymphatic system.
[9] Which among the following elements increases the absorption of water and calcium in plants?
A.
Manganese
B.
Boron
C.
Copper
D.
Molybdenum
Ans:
Boron
Explanation :
Boron increases the absorption of water and calcium in the plants. It helps in the metabolic activities in plants. Boron is necessary in order for sugar to move through protoplasmic membranes.
[10] Penicillin is extracted from -
A.
yeast
B.
algae
C.
fungus
D.
lichen
Ans:
fungus
Explanation :
Penicillin is produced from the genus of fungi "penicillium". All penicillium are b-lactam antibiotics and are used in the treatment of bacterial infections caused by susceptible, usually Gram-positive, organisms
[11] What is the rod shaped bacteria called?
A.
Bacillus
B.
Spirillum
C.
Coccus
D.
Coma
Ans:
Bacillus
Explanation :
Bacillus is a genus of Gram-positive, rodshaped bacteria and a member of the phylum Firmicutes. Bacillus species can be obligate aerobes or facultative anaerobes, and test positive for the enzyme catalase. Bacillus includes both freeliving and pathogenic species. Under stressful environmental conditions, the cells produce oval endospores that can stay dormant for extended periods.
[12] The animal which has become extinct recently in India happens to be -
A.
Golden cat
B.
Cheetah
C.
Wooly wolf
D.
Rhinoceros
Ans:
Cheetah
Explanation :
Cheetahs have been known to exist in India for a very long time, but as a result of hunting and other causes, cheetahs have been extinct in India since the 1940s. The cheetah is the only animal that has been described extinct in India in the last 100 years.
[13] Which one of the following is found only in women?
A.
Thyroid
B.
Pituitary
C.
Ovary
D.
Adenoid
Ans:
Ovary
Explanation :
Men don't have ovary. Women have a pair of ovaries which is a sexual gland responsible for producing estrogen. In men, testis has same functions as ovary in women. it produces testosterone.
[14] ‘Darwin finches’ refer to a group of :
A.
Fishes
B.
Lizards
C.
Birds
D.
Amphibians
Ans:
Birds
Explanation :
Darwin’s finches are a group of about 15 species of passerine birds. They often are classified as the subfamily Geospizinae or tribe Geospizini. They were first collected by Charles Darwin on the Galapagos Islands during the second voyage of the Beagle. All are found only on the Galapagos Islands. The birds vary in size from 10 to 20 cm and weigh between 8 and 38 grams. The smallest are the warbler-finches and the largest is the Vegetarian Finch. The most important differences between species are in the size and shape of their beaks, and the beaks are highly adapted to different food sources. The birds are all dull-coloured.
[15] The tissue in man where no cell division occurs after birth is -
A.
skeletal
B.
nerves
C.
connective
D.
germinal
Ans:
nerves
Explanation :
A nerve is an enclosed, cable-like bundle of axons (the long, slender projections of neurons) in the peripheral nervous system. A nerve provides a common pathway for the electrochemical nerve impulses that are transmitted along each of the axons to peripheral organs. A nerve conveys information in the form of electrochemical impulses (known as nerve impulses or action potentials) carried by the individual neurons that make up the nerve. These impulses are extremely fast, with some myelinated neurons conducting at speeds up to 120 m/s.
[16] Sea sickness is due to the effect of the motion of ship, on -
A.
internalear
B.
heart
C.
stomach
D.
eyes
Ans:
stomach
Explanation :
Motion sickness or kinetosis, also known as travel sickness, is a condition in which a disagreement exists between visually perceived movement and the vestibular system's sense of movement. Depending on the cause it can also be rcferred to as seasickness, car sickness, simulation sickness or airsickness. If the motion causing nausea is not resolved, the sufferer will usually vomit. Ginger is reported to calm the pyloric valve located at the base of the stomach. This relaxation of the valve allows the stomach to operate normally whereby the contents will enter the small intestine instead of being retained within the stomach.
[17] The name of the first cloned sheep was -
A.
Molly
B.
Dolly
C.
Jolly
D.
Roly
Ans:
Dolly
Explanation :
Dolly was a female domestic sheep, and the first mammal to be cloned from an adult somatic cell, using the process of nuclear transfer. She was cloned by Ian Wilmut, Keith Campbell and colleagues at the Roslin Institute and the biotechnology company PPL Therapeutics near Edinburgh in Scotland. The cell used as the donor for the cloning of Dolly was taken from a mammary gland, and the production of a healthy clone therefore proved that a cell taken from a specific part of the body could recreate a whole individual.
[18] Through ‘Photosynthesis’ green plants generate -
A.
inorganic materials
B.
minerals
C.
organic materials
D.
nutrients
Ans:
organic materials
Explanation :
Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. Photosynthesis in green plants harnesses the energy of sunlight to convert carbon dioxide, water, and minerals into organic compounds and gaseous oxygen. The principal organic products of plant photosynthesis are carbohydrates. Formation of the simple carbohydrate glucose is shown by the equation: 6CO2 (carbon dioxide) + 12H2O (water) → C6H12O6 (glucose) + 6O2 (oxygen) + H2O (water).
[19] The first photosynthetic oxygen liberating organisms to appear on earth were :
A.
Cyanobacteria
B.
Bryophytes
C.
Green algae
D.
Bacteria
Ans:
Cyanobacteria
Explanation :
Cyanobacteria or blue green algae were the photosynthetic organisms that lived in the ancient ocean. It liberated the oxygen found in the iron oxide.
[20] Which is the anticoagulant substance in blood?
A.
Fibrinogen
B.
Heparin
C.
Thrombin
D.
Globin
Ans:
Heparin
Explanation :
Heparin, a highly sulfated glycosaminoglycan, is widely used as an inject able anticoagulant, and has the highest negative charge density of any known biological molecule. It can also be used to form an inner anticoagulant surface on various experimental and medical devices such as test tubes and renal dialysis machines. Although it is used principally in medicine for anticoagulation, its true physiological role in the body remains unclear, because blood anti-coagulation is achieved mostly by heparan sulfate proteoglycans derived from endothelial cells.
[21] Sugarcane is a type of -
A.
creeper
B.
tree
C.
shrub
D.
grass
Ans:
grass
Explanation :
Sugarcane, (Saccharum officinarum) is a perennial grass of the family Poaceae, primarily cultivated for its juice from which sugar is processed. Most of the world's sugarcane is grown in subtropical and tropical areas. Sugar cane is a perennial tropical grass with tall stout jointed stems from which sugar is extracted.
[22] Mineral constituent of chlorophyll is -
A.
Iron
B.
Magnesium
C.
Calcium
D.
Potassium
Ans:
Magnesium
Explanation :
Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesize carbohydrates from CO2 and water. This process is known as photosynthesis and is the basis for sustaining the life processes of all plants. Since animals and humans obtain their food supply by eating plants, photosynthesis can be said to be the source of our life also. Chlorophyll is the molecule that traps this `most elusive of all powers' - and is called a photoreceptor. It is found in the chloroplasts of green plants, and is what makes green plants, green.
[23] Which of the part of tongue bears cells for sour taste?
A.
Front
B.
Back
C.
Sides
D.
Middle
Ans:
Sides
Explanation :
Taste buds probably play the most important part in helping us to enjoy the many flavors of food. Our taste buds can recognize four basic kinds of tastes: sweet, salty, sour, and bitter. The salty/sweet taste buds are located near the front of our tongue; the sour taste buds line the sides of our tongue; and the bitter taste buds are found at the very back of our tongue.
[24] Who discovered malaria causing germs?
A.
Christiaan Bernard
B.
Charles Louis Alphonse Laveran
C.
Dmitry Ivanovsky
D.
Martinus William Beijerinck
Ans:
Charles Louis Alphonse Laveran
Explanation :
Charles Louis Alphonse Laveran, a French army surgeon stationed in Constantine, Algeria, discovered that malaria was caused by a protozoan parasite in 1880.
[25] Which one of the following is not an example of eukaryotic organism?
A.
Yeast
B.
Bacteria
C.
Plant
D.
Human being
Ans:
Bacteria
Explanation :
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes.
Explanation :
Boron increases the absorption of water and calcium in the plants. It helps in the metabolic activities in plants. Boron is necessary in order for sugar to move through protoplasmic membranes.
[10] Penicillin is extracted from -
A.
yeast
B.
algae
C.
fungus
D.
lichen
Ans:
fungus
Explanation :
Penicillin is produced from the genus of fungi "penicillium". All penicillium are b-lactam antibiotics and are used in the treatment of bacterial infections caused by susceptible, usually Gram-positive, organisms
[11] What is the rod shaped bacteria called?
A.
Bacillus
B.
Spirillum
C.
Coccus
D.
Coma
Ans:
Bacillus
Explanation :
Bacillus is a genus of Gram-positive, rodshaped bacteria and a member of the phylum Firmicutes. Bacillus species can be obligate aerobes or facultative anaerobes, and test positive for the enzyme catalase. Bacillus includes both freeliving and pathogenic species. Under stressful environmental conditions, the cells produce oval endospores that can stay dormant for extended periods.
[12] The animal which has become extinct recently in India happens to be -
A.
Golden cat
B.
Cheetah
C.
Wooly wolf
D.
Rhinoceros
Ans:
Cheetah
Explanation :
Cheetahs have been known to exist in India for a very long time, but as a result of hunting and other causes, cheetahs have been extinct in India since the 1940s. The cheetah is the only animal that has been described extinct in India in the last 100 years.
[13] Which one of the following is found only in women?
A.
Thyroid
B.
Pituitary
C.
Ovary
D.
Adenoid
Ans:
Ovary
Explanation :
Men don't have ovary. Women have a pair of ovaries which is a sexual gland responsible for producing estrogen. In men, testis has same functions as ovary in women. it produces testosterone.
[14] ‘Darwin finches’ refer to a group of :
A.
Fishes
B.
Lizards
C.
Birds
D.
Amphibians
Ans:
Birds
Explanation :
Darwin’s finches are a group of about 15 species of passerine birds. They often are classified as the subfamily Geospizinae or tribe Geospizini. They were first collected by Charles Darwin on the Galapagos Islands during the second voyage of the Beagle. All are found only on the Galapagos Islands. The birds vary in size from 10 to 20 cm and weigh between 8 and 38 grams. The smallest are the warbler-finches and the largest is the Vegetarian Finch. The most important differences between species are in the size and shape of their beaks, and the beaks are highly adapted to different food sources. The birds are all dull-coloured.
[15] The tissue in man where no cell division occurs after birth is -
A.
skeletal
B.
nerves
C.
connective
D.
germinal
Ans:
nerves
Explanation :
A nerve is an enclosed, cable-like bundle of axons (the long, slender projections of neurons) in the peripheral nervous system. A nerve provides a common pathway for the electrochemical nerve impulses that are transmitted along each of the axons to peripheral organs. A nerve conveys information in the form of electrochemical impulses (known as nerve impulses or action potentials) carried by the individual neurons that make up the nerve. These impulses are extremely fast, with some myelinated neurons conducting at speeds up to 120 m/s.
[16] Sea sickness is due to the effect of the motion of ship, on -
A.
internalear
B.
heart
C.
stomach
D.
eyes
Ans:
stomach
Explanation :
Motion sickness or kinetosis, also known as travel sickness, is a condition in which a disagreement exists between visually perceived movement and the vestibular system's sense of movement. Depending on the cause it can also be rcferred to as seasickness, car sickness, simulation sickness or airsickness. If the motion causing nausea is not resolved, the sufferer will usually vomit. Ginger is reported to calm the pyloric valve located at the base of the stomach. This relaxation of the valve allows the stomach to operate normally whereby the contents will enter the small intestine instead of being retained within the stomach.
[17] The name of the first cloned sheep was -
A.
Molly
B.
Dolly
C.
Jolly
D.
Roly
Ans:
Dolly
Explanation :
Dolly was a female domestic sheep, and the first mammal to be cloned from an adult somatic cell, using the process of nuclear transfer. She was cloned by Ian Wilmut, Keith Campbell and colleagues at the Roslin Institute and the biotechnology company PPL Therapeutics near Edinburgh in Scotland. The cell used as the donor for the cloning of Dolly was taken from a mammary gland, and the production of a healthy clone therefore proved that a cell taken from a specific part of the body could recreate a whole individual.
[18] Through ‘Photosynthesis’ green plants generate -
A.
inorganic materials
B.
minerals
C.
organic materials
D.
nutrients
Ans:
organic materials
Explanation :
Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. Photosynthesis in green plants harnesses the energy of sunlight to convert carbon dioxide, water, and minerals into organic compounds and gaseous oxygen. The principal organic products of plant photosynthesis are carbohydrates. Formation of the simple carbohydrate glucose is shown by the equation: 6CO2 (carbon dioxide) + 12H2O (water) → C6H12O6 (glucose) + 6O2 (oxygen) + H2O (water).
[19] The first photosynthetic oxygen liberating organisms to appear on earth were :
A.
Cyanobacteria
B.
Bryophytes
C.
Green algae
D.
Bacteria
Ans:
Cyanobacteria
Explanation :
Cyanobacteria or blue green algae were the photosynthetic organisms that lived in the ancient ocean. It liberated the oxygen found in the iron oxide.
[20] Which is the anticoagulant substance in blood?
A.
Fibrinogen
B.
Heparin
C.
Thrombin
D.
Globin
Ans:
Heparin
Explanation :
Heparin, a highly sulfated glycosaminoglycan, is widely used as an inject able anticoagulant, and has the highest negative charge density of any known biological molecule. It can also be used to form an inner anticoagulant surface on various experimental and medical devices such as test tubes and renal dialysis machines. Although it is used principally in medicine for anticoagulation, its true physiological role in the body remains unclear, because blood anti-coagulation is achieved mostly by heparan sulfate proteoglycans derived from endothelial cells.
[21] Sugarcane is a type of -
A.
creeper
B.
tree
C.
shrub
D.
grass
Ans:
grass
Explanation :
Sugarcane, (Saccharum officinarum) is a perennial grass of the family Poaceae, primarily cultivated for its juice from which sugar is processed. Most of the world's sugarcane is grown in subtropical and tropical areas. Sugar cane is a perennial tropical grass with tall stout jointed stems from which sugar is extracted.
[22] Mineral constituent of chlorophyll is -
A.
Iron
B.
Magnesium
C.
Calcium
D.
Potassium
Ans:
Magnesium
Explanation :
Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesize carbohydrates from CO2 and water. This process is known as photosynthesis and is the basis for sustaining the life processes of all plants. Since animals and humans obtain their food supply by eating plants, photosynthesis can be said to be the source of our life also. Chlorophyll is the molecule that traps this `most elusive of all powers' - and is called a photoreceptor. It is found in the chloroplasts of green plants, and is what makes green plants, green.
[23] Which of the part of tongue bears cells for sour taste?
A.
Front
B.
Back
C.
Sides
D.
Middle
Ans:
Sides
Explanation :
Taste buds probably play the most important part in helping us to enjoy the many flavors of food. Our taste buds can recognize four basic kinds of tastes: sweet, salty, sour, and bitter. The salty/sweet taste buds are located near the front of our tongue; the sour taste buds line the sides of our tongue; and the bitter taste buds are found at the very back of our tongue.
[24] Who discovered malaria causing germs?
A.
Christiaan Bernard
B.
Charles Louis Alphonse Laveran
C.
Dmitry Ivanovsky
D.
Martinus William Beijerinck
Ans:
Charles Louis Alphonse Laveran
Explanation :
Charles Louis Alphonse Laveran, a French army surgeon stationed in Constantine, Algeria, discovered that malaria was caused by a protozoan parasite in 1880.
[25] Which one of the following is not an example of eukaryotic organism?
A.
Yeast
B.
Bacteria
C.
Plant
D.
Human being
Ans:
Bacteria
Explanation :
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes.
Explanation :
Bacillus is a genus of Gram-positive, rodshaped bacteria and a member of the phylum Firmicutes. Bacillus species can be obligate aerobes or facultative anaerobes, and test positive for the enzyme catalase. Bacillus includes both freeliving and pathogenic species. Under stressful environmental conditions, the cells produce oval endospores that can stay dormant for extended periods.
[12] The animal which has become extinct recently in India happens to be -
A.
Golden cat
B.
Cheetah
C.
Wooly wolf
D.
Rhinoceros
Ans:
Cheetah
Explanation :
Cheetahs have been known to exist in India for a very long time, but as a result of hunting and other causes, cheetahs have been extinct in India since the 1940s. The cheetah is the only animal that has been described extinct in India in the last 100 years.
[13] Which one of the following is found only in women?
A.
Thyroid
B.
Pituitary
C.
Ovary
D.
Adenoid
Ans:
Ovary
Explanation :
Men don't have ovary. Women have a pair of ovaries which is a sexual gland responsible for producing estrogen. In men, testis has same functions as ovary in women. it produces testosterone.
[14] ‘Darwin finches’ refer to a group of :
A.
Fishes
B.
Lizards
C.
Birds
D.
Amphibians
Ans:
Birds
Explanation :
Darwin’s finches are a group of about 15 species of passerine birds. They often are classified as the subfamily Geospizinae or tribe Geospizini. They were first collected by Charles Darwin on the Galapagos Islands during the second voyage of the Beagle. All are found only on the Galapagos Islands. The birds vary in size from 10 to 20 cm and weigh between 8 and 38 grams. The smallest are the warbler-finches and the largest is the Vegetarian Finch. The most important differences between species are in the size and shape of their beaks, and the beaks are highly adapted to different food sources. The birds are all dull-coloured.
[15] The tissue in man where no cell division occurs after birth is -
A.
skeletal
B.
nerves
C.
connective
D.
germinal
Ans:
nerves
Explanation :
A nerve is an enclosed, cable-like bundle of axons (the long, slender projections of neurons) in the peripheral nervous system. A nerve provides a common pathway for the electrochemical nerve impulses that are transmitted along each of the axons to peripheral organs. A nerve conveys information in the form of electrochemical impulses (known as nerve impulses or action potentials) carried by the individual neurons that make up the nerve. These impulses are extremely fast, with some myelinated neurons conducting at speeds up to 120 m/s.
[16] Sea sickness is due to the effect of the motion of ship, on -
A.
internalear
B.
heart
C.
stomach
D.
eyes
Ans:
stomach
Explanation :
Motion sickness or kinetosis, also known as travel sickness, is a condition in which a disagreement exists between visually perceived movement and the vestibular system's sense of movement. Depending on the cause it can also be rcferred to as seasickness, car sickness, simulation sickness or airsickness. If the motion causing nausea is not resolved, the sufferer will usually vomit. Ginger is reported to calm the pyloric valve located at the base of the stomach. This relaxation of the valve allows the stomach to operate normally whereby the contents will enter the small intestine instead of being retained within the stomach.
[17] The name of the first cloned sheep was -
A.
Molly
B.
Dolly
C.
Jolly
D.
Roly
Ans:
Dolly
Explanation :
Dolly was a female domestic sheep, and the first mammal to be cloned from an adult somatic cell, using the process of nuclear transfer. She was cloned by Ian Wilmut, Keith Campbell and colleagues at the Roslin Institute and the biotechnology company PPL Therapeutics near Edinburgh in Scotland. The cell used as the donor for the cloning of Dolly was taken from a mammary gland, and the production of a healthy clone therefore proved that a cell taken from a specific part of the body could recreate a whole individual.
[18] Through ‘Photosynthesis’ green plants generate -
A.
inorganic materials
B.
minerals
C.
organic materials
D.
nutrients
Ans:
organic materials
Explanation :
Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. Photosynthesis in green plants harnesses the energy of sunlight to convert carbon dioxide, water, and minerals into organic compounds and gaseous oxygen. The principal organic products of plant photosynthesis are carbohydrates. Formation of the simple carbohydrate glucose is shown by the equation: 6CO2 (carbon dioxide) + 12H2O (water) → C6H12O6 (glucose) + 6O2 (oxygen) + H2O (water).
[19] The first photosynthetic oxygen liberating organisms to appear on earth were :
A.
Cyanobacteria
B.
Bryophytes
C.
Green algae
D.
Bacteria
Ans:
Cyanobacteria
Explanation :
Cyanobacteria or blue green algae were the photosynthetic organisms that lived in the ancient ocean. It liberated the oxygen found in the iron oxide.
[20] Which is the anticoagulant substance in blood?
A.
Fibrinogen
B.
Heparin
C.
Thrombin
D.
Globin
Ans:
Heparin
Explanation :
Heparin, a highly sulfated glycosaminoglycan, is widely used as an inject able anticoagulant, and has the highest negative charge density of any known biological molecule. It can also be used to form an inner anticoagulant surface on various experimental and medical devices such as test tubes and renal dialysis machines. Although it is used principally in medicine for anticoagulation, its true physiological role in the body remains unclear, because blood anti-coagulation is achieved mostly by heparan sulfate proteoglycans derived from endothelial cells.
[21] Sugarcane is a type of -
A.
creeper
B.
tree
C.
shrub
D.
grass
Ans:
grass
Explanation :
Sugarcane, (Saccharum officinarum) is a perennial grass of the family Poaceae, primarily cultivated for its juice from which sugar is processed. Most of the world's sugarcane is grown in subtropical and tropical areas. Sugar cane is a perennial tropical grass with tall stout jointed stems from which sugar is extracted.
[22] Mineral constituent of chlorophyll is -
A.
Iron
B.
Magnesium
C.
Calcium
D.
Potassium
Ans:
Magnesium
Explanation :
Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesize carbohydrates from CO2 and water. This process is known as photosynthesis and is the basis for sustaining the life processes of all plants. Since animals and humans obtain their food supply by eating plants, photosynthesis can be said to be the source of our life also. Chlorophyll is the molecule that traps this `most elusive of all powers' - and is called a photoreceptor. It is found in the chloroplasts of green plants, and is what makes green plants, green.
[23] Which of the part of tongue bears cells for sour taste?
A.
Front
B.
Back
C.
Sides
D.
Middle
Ans:
Sides
Explanation :
Taste buds probably play the most important part in helping us to enjoy the many flavors of food. Our taste buds can recognize four basic kinds of tastes: sweet, salty, sour, and bitter. The salty/sweet taste buds are located near the front of our tongue; the sour taste buds line the sides of our tongue; and the bitter taste buds are found at the very back of our tongue.
[24] Who discovered malaria causing germs?
A.
Christiaan Bernard
B.
Charles Louis Alphonse Laveran
C.
Dmitry Ivanovsky
D.
Martinus William Beijerinck
Ans:
Charles Louis Alphonse Laveran
Explanation :
Charles Louis Alphonse Laveran, a French army surgeon stationed in Constantine, Algeria, discovered that malaria was caused by a protozoan parasite in 1880.
[25] Which one of the following is not an example of eukaryotic organism?
A.
Yeast
B.
Bacteria
C.
Plant
D.
Human being
Ans:
Bacteria
Explanation :
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes.
Explanation :
Men don't have ovary. Women have a pair of ovaries which is a sexual gland responsible for producing estrogen. In men, testis has same functions as ovary in women. it produces testosterone.
[14] ‘Darwin finches’ refer to a group of :
A.
Fishes
B.
Lizards
C.
Birds
D.
Amphibians
Ans:
Birds
Explanation :
Darwin’s finches are a group of about 15 species of passerine birds. They often are classified as the subfamily Geospizinae or tribe Geospizini. They were first collected by Charles Darwin on the Galapagos Islands during the second voyage of the Beagle. All are found only on the Galapagos Islands. The birds vary in size from 10 to 20 cm and weigh between 8 and 38 grams. The smallest are the warbler-finches and the largest is the Vegetarian Finch. The most important differences between species are in the size and shape of their beaks, and the beaks are highly adapted to different food sources. The birds are all dull-coloured.
[15] The tissue in man where no cell division occurs after birth is -
A.
skeletal
B.
nerves
C.
connective
D.
germinal
Ans:
nerves
Explanation :
A nerve is an enclosed, cable-like bundle of axons (the long, slender projections of neurons) in the peripheral nervous system. A nerve provides a common pathway for the electrochemical nerve impulses that are transmitted along each of the axons to peripheral organs. A nerve conveys information in the form of electrochemical impulses (known as nerve impulses or action potentials) carried by the individual neurons that make up the nerve. These impulses are extremely fast, with some myelinated neurons conducting at speeds up to 120 m/s.
[16] Sea sickness is due to the effect of the motion of ship, on -
A.
internalear
B.
heart
C.
stomach
D.
eyes
Ans:
stomach
Explanation :
Motion sickness or kinetosis, also known as travel sickness, is a condition in which a disagreement exists between visually perceived movement and the vestibular system's sense of movement. Depending on the cause it can also be rcferred to as seasickness, car sickness, simulation sickness or airsickness. If the motion causing nausea is not resolved, the sufferer will usually vomit. Ginger is reported to calm the pyloric valve located at the base of the stomach. This relaxation of the valve allows the stomach to operate normally whereby the contents will enter the small intestine instead of being retained within the stomach.
[17] The name of the first cloned sheep was -
A.
Molly
B.
Dolly
C.
Jolly
D.
Roly
Ans:
Dolly
Explanation :
Dolly was a female domestic sheep, and the first mammal to be cloned from an adult somatic cell, using the process of nuclear transfer. She was cloned by Ian Wilmut, Keith Campbell and colleagues at the Roslin Institute and the biotechnology company PPL Therapeutics near Edinburgh in Scotland. The cell used as the donor for the cloning of Dolly was taken from a mammary gland, and the production of a healthy clone therefore proved that a cell taken from a specific part of the body could recreate a whole individual.
[18] Through ‘Photosynthesis’ green plants generate -
A.
inorganic materials
B.
minerals
C.
organic materials
D.
nutrients
Ans:
organic materials
Explanation :
Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. Photosynthesis in green plants harnesses the energy of sunlight to convert carbon dioxide, water, and minerals into organic compounds and gaseous oxygen. The principal organic products of plant photosynthesis are carbohydrates. Formation of the simple carbohydrate glucose is shown by the equation: 6CO2 (carbon dioxide) + 12H2O (water) → C6H12O6 (glucose) + 6O2 (oxygen) + H2O (water).
[19] The first photosynthetic oxygen liberating organisms to appear on earth were :
A.
Cyanobacteria
B.
Bryophytes
C.
Green algae
D.
Bacteria
Ans:
Cyanobacteria
Explanation :
Cyanobacteria or blue green algae were the photosynthetic organisms that lived in the ancient ocean. It liberated the oxygen found in the iron oxide.
[20] Which is the anticoagulant substance in blood?
A.
Fibrinogen
B.
Heparin
C.
Thrombin
D.
Globin
Ans:
Heparin
Explanation :
Heparin, a highly sulfated glycosaminoglycan, is widely used as an inject able anticoagulant, and has the highest negative charge density of any known biological molecule. It can also be used to form an inner anticoagulant surface on various experimental and medical devices such as test tubes and renal dialysis machines. Although it is used principally in medicine for anticoagulation, its true physiological role in the body remains unclear, because blood anti-coagulation is achieved mostly by heparan sulfate proteoglycans derived from endothelial cells.
[21] Sugarcane is a type of -
A.
creeper
B.
tree
C.
shrub
D.
grass
Ans:
grass
Explanation :
Sugarcane, (Saccharum officinarum) is a perennial grass of the family Poaceae, primarily cultivated for its juice from which sugar is processed. Most of the world's sugarcane is grown in subtropical and tropical areas. Sugar cane is a perennial tropical grass with tall stout jointed stems from which sugar is extracted.
[22] Mineral constituent of chlorophyll is -
A.
Iron
B.
Magnesium
C.
Calcium
D.
Potassium
Ans:
Magnesium
Explanation :
Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesize carbohydrates from CO2 and water. This process is known as photosynthesis and is the basis for sustaining the life processes of all plants. Since animals and humans obtain their food supply by eating plants, photosynthesis can be said to be the source of our life also. Chlorophyll is the molecule that traps this `most elusive of all powers' - and is called a photoreceptor. It is found in the chloroplasts of green plants, and is what makes green plants, green.
[23] Which of the part of tongue bears cells for sour taste?
A.
Front
B.
Back
C.
Sides
D.
Middle
Ans:
Sides
Explanation :
Taste buds probably play the most important part in helping us to enjoy the many flavors of food. Our taste buds can recognize four basic kinds of tastes: sweet, salty, sour, and bitter. The salty/sweet taste buds are located near the front of our tongue; the sour taste buds line the sides of our tongue; and the bitter taste buds are found at the very back of our tongue.
[24] Who discovered malaria causing germs?
A.
Christiaan Bernard
B.
Charles Louis Alphonse Laveran
C.
Dmitry Ivanovsky
D.
Martinus William Beijerinck
Ans:
Charles Louis Alphonse Laveran
Explanation :
Charles Louis Alphonse Laveran, a French army surgeon stationed in Constantine, Algeria, discovered that malaria was caused by a protozoan parasite in 1880.
[25] Which one of the following is not an example of eukaryotic organism?
A.
Yeast
B.
Bacteria
C.
Plant
D.
Human being
Ans:
Bacteria
Explanation :
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes.
Explanation :
A nerve is an enclosed, cable-like bundle of axons (the long, slender projections of neurons) in the peripheral nervous system. A nerve provides a common pathway for the electrochemical nerve impulses that are transmitted along each of the axons to peripheral organs. A nerve conveys information in the form of electrochemical impulses (known as nerve impulses or action potentials) carried by the individual neurons that make up the nerve. These impulses are extremely fast, with some myelinated neurons conducting at speeds up to 120 m/s.
[16] Sea sickness is due to the effect of the motion of ship, on -
A.
internalear
B.
heart
C.
stomach
D.
eyes
Ans:
stomach
Explanation :
Motion sickness or kinetosis, also known as travel sickness, is a condition in which a disagreement exists between visually perceived movement and the vestibular system's sense of movement. Depending on the cause it can also be rcferred to as seasickness, car sickness, simulation sickness or airsickness. If the motion causing nausea is not resolved, the sufferer will usually vomit. Ginger is reported to calm the pyloric valve located at the base of the stomach. This relaxation of the valve allows the stomach to operate normally whereby the contents will enter the small intestine instead of being retained within the stomach.
[17] The name of the first cloned sheep was -
A.
Molly
B.
Dolly
C.
Jolly
D.
Roly
Ans:
Dolly
Explanation :
Dolly was a female domestic sheep, and the first mammal to be cloned from an adult somatic cell, using the process of nuclear transfer. She was cloned by Ian Wilmut, Keith Campbell and colleagues at the Roslin Institute and the biotechnology company PPL Therapeutics near Edinburgh in Scotland. The cell used as the donor for the cloning of Dolly was taken from a mammary gland, and the production of a healthy clone therefore proved that a cell taken from a specific part of the body could recreate a whole individual.
[18] Through ‘Photosynthesis’ green plants generate -
A.
inorganic materials
B.
minerals
C.
organic materials
D.
nutrients
Ans:
organic materials
Explanation :
Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. Photosynthesis in green plants harnesses the energy of sunlight to convert carbon dioxide, water, and minerals into organic compounds and gaseous oxygen. The principal organic products of plant photosynthesis are carbohydrates. Formation of the simple carbohydrate glucose is shown by the equation: 6CO2 (carbon dioxide) + 12H2O (water) → C6H12O6 (glucose) + 6O2 (oxygen) + H2O (water).
[19] The first photosynthetic oxygen liberating organisms to appear on earth were :
A.
Cyanobacteria
B.
Bryophytes
C.
Green algae
D.
Bacteria
Ans:
Cyanobacteria
Explanation :
Cyanobacteria or blue green algae were the photosynthetic organisms that lived in the ancient ocean. It liberated the oxygen found in the iron oxide.
[20] Which is the anticoagulant substance in blood?
A.
Fibrinogen
B.
Heparin
C.
Thrombin
D.
Globin
Ans:
Heparin
Explanation :
Heparin, a highly sulfated glycosaminoglycan, is widely used as an inject able anticoagulant, and has the highest negative charge density of any known biological molecule. It can also be used to form an inner anticoagulant surface on various experimental and medical devices such as test tubes and renal dialysis machines. Although it is used principally in medicine for anticoagulation, its true physiological role in the body remains unclear, because blood anti-coagulation is achieved mostly by heparan sulfate proteoglycans derived from endothelial cells.
[21] Sugarcane is a type of -
A.
creeper
B.
tree
C.
shrub
D.
grass
Ans:
grass
Explanation :
Sugarcane, (Saccharum officinarum) is a perennial grass of the family Poaceae, primarily cultivated for its juice from which sugar is processed. Most of the world's sugarcane is grown in subtropical and tropical areas. Sugar cane is a perennial tropical grass with tall stout jointed stems from which sugar is extracted.
[22] Mineral constituent of chlorophyll is -
A.
Iron
B.
Magnesium
C.
Calcium
D.
Potassium
Ans:
Magnesium
Explanation :
Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesize carbohydrates from CO2 and water. This process is known as photosynthesis and is the basis for sustaining the life processes of all plants. Since animals and humans obtain their food supply by eating plants, photosynthesis can be said to be the source of our life also. Chlorophyll is the molecule that traps this `most elusive of all powers' - and is called a photoreceptor. It is found in the chloroplasts of green plants, and is what makes green plants, green.
[23] Which of the part of tongue bears cells for sour taste?
A.
Front
B.
Back
C.
Sides
D.
Middle
Ans:
Sides
Explanation :
Taste buds probably play the most important part in helping us to enjoy the many flavors of food. Our taste buds can recognize four basic kinds of tastes: sweet, salty, sour, and bitter. The salty/sweet taste buds are located near the front of our tongue; the sour taste buds line the sides of our tongue; and the bitter taste buds are found at the very back of our tongue.
[24] Who discovered malaria causing germs?
A.
Christiaan Bernard
B.
Charles Louis Alphonse Laveran
C.
Dmitry Ivanovsky
D.
Martinus William Beijerinck
Ans:
Charles Louis Alphonse Laveran
Explanation :
Charles Louis Alphonse Laveran, a French army surgeon stationed in Constantine, Algeria, discovered that malaria was caused by a protozoan parasite in 1880.
[25] Which one of the following is not an example of eukaryotic organism?
A.
Yeast
B.
Bacteria
C.
Plant
D.
Human being
Ans:
Bacteria
Explanation :
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes.
Explanation :
Dolly was a female domestic sheep, and the first mammal to be cloned from an adult somatic cell, using the process of nuclear transfer. She was cloned by Ian Wilmut, Keith Campbell and colleagues at the Roslin Institute and the biotechnology company PPL Therapeutics near Edinburgh in Scotland. The cell used as the donor for the cloning of Dolly was taken from a mammary gland, and the production of a healthy clone therefore proved that a cell taken from a specific part of the body could recreate a whole individual.
[18] Through ‘Photosynthesis’ green plants generate -
A.
inorganic materials
B.
minerals
C.
organic materials
D.
nutrients
Ans:
organic materials
Explanation :
Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. Photosynthesis in green plants harnesses the energy of sunlight to convert carbon dioxide, water, and minerals into organic compounds and gaseous oxygen. The principal organic products of plant photosynthesis are carbohydrates. Formation of the simple carbohydrate glucose is shown by the equation: 6CO2 (carbon dioxide) + 12H2O (water) → C6H12O6 (glucose) + 6O2 (oxygen) + H2O (water).
[19] The first photosynthetic oxygen liberating organisms to appear on earth were :
A.
Cyanobacteria
B.
Bryophytes
C.
Green algae
D.
Bacteria
Ans:
Cyanobacteria
Explanation :
Cyanobacteria or blue green algae were the photosynthetic organisms that lived in the ancient ocean. It liberated the oxygen found in the iron oxide.
[20] Which is the anticoagulant substance in blood?
A.
Fibrinogen
B.
Heparin
C.
Thrombin
D.
Globin
Ans:
Heparin
Explanation :
Heparin, a highly sulfated glycosaminoglycan, is widely used as an inject able anticoagulant, and has the highest negative charge density of any known biological molecule. It can also be used to form an inner anticoagulant surface on various experimental and medical devices such as test tubes and renal dialysis machines. Although it is used principally in medicine for anticoagulation, its true physiological role in the body remains unclear, because blood anti-coagulation is achieved mostly by heparan sulfate proteoglycans derived from endothelial cells.
[21] Sugarcane is a type of -
A.
creeper
B.
tree
C.
shrub
D.
grass
Ans:
grass
Explanation :
Sugarcane, (Saccharum officinarum) is a perennial grass of the family Poaceae, primarily cultivated for its juice from which sugar is processed. Most of the world's sugarcane is grown in subtropical and tropical areas. Sugar cane is a perennial tropical grass with tall stout jointed stems from which sugar is extracted.
[22] Mineral constituent of chlorophyll is -
A.
Iron
B.
Magnesium
C.
Calcium
D.
Potassium
Ans:
Magnesium
Explanation :
Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesize carbohydrates from CO2 and water. This process is known as photosynthesis and is the basis for sustaining the life processes of all plants. Since animals and humans obtain their food supply by eating plants, photosynthesis can be said to be the source of our life also. Chlorophyll is the molecule that traps this `most elusive of all powers' - and is called a photoreceptor. It is found in the chloroplasts of green plants, and is what makes green plants, green.
[23] Which of the part of tongue bears cells for sour taste?
A.
Front
B.
Back
C.
Sides
D.
Middle
Ans:
Sides
Explanation :
Taste buds probably play the most important part in helping us to enjoy the many flavors of food. Our taste buds can recognize four basic kinds of tastes: sweet, salty, sour, and bitter. The salty/sweet taste buds are located near the front of our tongue; the sour taste buds line the sides of our tongue; and the bitter taste buds are found at the very back of our tongue.
[24] Who discovered malaria causing germs?
A.
Christiaan Bernard
B.
Charles Louis Alphonse Laveran
C.
Dmitry Ivanovsky
D.
Martinus William Beijerinck
Ans:
Charles Louis Alphonse Laveran
Explanation :
Charles Louis Alphonse Laveran, a French army surgeon stationed in Constantine, Algeria, discovered that malaria was caused by a protozoan parasite in 1880.
[25] Which one of the following is not an example of eukaryotic organism?
A.
Yeast
B.
Bacteria
C.
Plant
D.
Human being
Ans:
Bacteria
Explanation :
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes.
Explanation :
Cyanobacteria or blue green algae were the photosynthetic organisms that lived in the ancient ocean. It liberated the oxygen found in the iron oxide.
[20] Which is the anticoagulant substance in blood?
A.
Fibrinogen
B.
Heparin
C.
Thrombin
D.
Globin
Ans:
Heparin
Explanation :
Heparin, a highly sulfated glycosaminoglycan, is widely used as an inject able anticoagulant, and has the highest negative charge density of any known biological molecule. It can also be used to form an inner anticoagulant surface on various experimental and medical devices such as test tubes and renal dialysis machines. Although it is used principally in medicine for anticoagulation, its true physiological role in the body remains unclear, because blood anti-coagulation is achieved mostly by heparan sulfate proteoglycans derived from endothelial cells.
[21] Sugarcane is a type of -
A.
creeper
B.
tree
C.
shrub
D.
grass
Ans:
grass
Explanation :
Sugarcane, (Saccharum officinarum) is a perennial grass of the family Poaceae, primarily cultivated for its juice from which sugar is processed. Most of the world's sugarcane is grown in subtropical and tropical areas. Sugar cane is a perennial tropical grass with tall stout jointed stems from which sugar is extracted.
[22] Mineral constituent of chlorophyll is -
A.
Iron
B.
Magnesium
C.
Calcium
D.
Potassium
Ans:
Magnesium
Explanation :
Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesize carbohydrates from CO2 and water. This process is known as photosynthesis and is the basis for sustaining the life processes of all plants. Since animals and humans obtain their food supply by eating plants, photosynthesis can be said to be the source of our life also. Chlorophyll is the molecule that traps this `most elusive of all powers' - and is called a photoreceptor. It is found in the chloroplasts of green plants, and is what makes green plants, green.
[23] Which of the part of tongue bears cells for sour taste?
A.
Front
B.
Back
C.
Sides
D.
Middle
Ans:
Sides
Explanation :
Taste buds probably play the most important part in helping us to enjoy the many flavors of food. Our taste buds can recognize four basic kinds of tastes: sweet, salty, sour, and bitter. The salty/sweet taste buds are located near the front of our tongue; the sour taste buds line the sides of our tongue; and the bitter taste buds are found at the very back of our tongue.
[24] Who discovered malaria causing germs?
A.
Christiaan Bernard
B.
Charles Louis Alphonse Laveran
C.
Dmitry Ivanovsky
D.
Martinus William Beijerinck
Ans:
Charles Louis Alphonse Laveran
Explanation :
Charles Louis Alphonse Laveran, a French army surgeon stationed in Constantine, Algeria, discovered that malaria was caused by a protozoan parasite in 1880.
[25] Which one of the following is not an example of eukaryotic organism?
A.
Yeast
B.
Bacteria
C.
Plant
D.
Human being
Ans:
Bacteria
Explanation :
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes.
Explanation :
Sugarcane, (Saccharum officinarum) is a perennial grass of the family Poaceae, primarily cultivated for its juice from which sugar is processed. Most of the world's sugarcane is grown in subtropical and tropical areas. Sugar cane is a perennial tropical grass with tall stout jointed stems from which sugar is extracted.
[22] Mineral constituent of chlorophyll is -
A.
Iron
B.
Magnesium
C.
Calcium
D.
Potassium
Ans:
Magnesium
Explanation :
Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesize carbohydrates from CO2 and water. This process is known as photosynthesis and is the basis for sustaining the life processes of all plants. Since animals and humans obtain their food supply by eating plants, photosynthesis can be said to be the source of our life also. Chlorophyll is the molecule that traps this `most elusive of all powers' - and is called a photoreceptor. It is found in the chloroplasts of green plants, and is what makes green plants, green.
[23] Which of the part of tongue bears cells for sour taste?
A.
Front
B.
Back
C.
Sides
D.
Middle
Ans:
Sides
Explanation :
Taste buds probably play the most important part in helping us to enjoy the many flavors of food. Our taste buds can recognize four basic kinds of tastes: sweet, salty, sour, and bitter. The salty/sweet taste buds are located near the front of our tongue; the sour taste buds line the sides of our tongue; and the bitter taste buds are found at the very back of our tongue.
[24] Who discovered malaria causing germs?
A.
Christiaan Bernard
B.
Charles Louis Alphonse Laveran
C.
Dmitry Ivanovsky
D.
Martinus William Beijerinck
Ans:
Charles Louis Alphonse Laveran
Explanation :
Charles Louis Alphonse Laveran, a French army surgeon stationed in Constantine, Algeria, discovered that malaria was caused by a protozoan parasite in 1880.
[25] Which one of the following is not an example of eukaryotic organism?
A.
Yeast
B.
Bacteria
C.
Plant
D.
Human being
Ans:
Bacteria
Explanation :
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes.
Explanation :
Taste buds probably play the most important part in helping us to enjoy the many flavors of food. Our taste buds can recognize four basic kinds of tastes: sweet, salty, sour, and bitter. The salty/sweet taste buds are located near the front of our tongue; the sour taste buds line the sides of our tongue; and the bitter taste buds are found at the very back of our tongue.
[24] Who discovered malaria causing germs?
A.
Christiaan Bernard
B.
Charles Louis Alphonse Laveran
C.
Dmitry Ivanovsky
D.
Martinus William Beijerinck
Ans:
Charles Louis Alphonse Laveran
Explanation :
Charles Louis Alphonse Laveran, a French army surgeon stationed in Constantine, Algeria, discovered that malaria was caused by a protozoan parasite in 1880.
[25] Which one of the following is not an example of eukaryotic organism?
A.
Yeast
B.
Bacteria
C.
Plant
D.
Human being
Ans:
Bacteria
Explanation :
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes.
Explanation :
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes.