[1] Humerus bone is situated in -
A.
Thigh
B.
Upper arm
C.
Knee
D.
Fore arm
Ans:
Thigh
Explanation :
The humerus is a long bone in the arm or forelimb that runs from the shoulder to the elbow. It connects the scapula and the two bones of the lower arm, the radius and ulna.
[2] The pH of human blood is -
A.
7.2
B.
7.8
C.
6.6
D.
7.4
Ans:
7.4
Explanation :
Different fluids in the human body generally have a delicate range of acid-alkaline balance they maintain for optimal functioning. Human blood has a normal pH of about 7.41. The pH of urine has a wider range. Normal ranges for urine pH are from 4.5 to 8. When the pH levels of blood or other key bodily fluids fall out of optimal pH range due to adverse metabolic or respiratory conditions, the human body goes through a variety of adjustments to try to correct the acid or alkaline imbalance. If the body is too alkaline, a condition called alkalosis results. Conversely, an overly acid condition results in acidosis.
[3] Which amongst the following is largest endocrine gland in the body?
A.
Thyroid
B.
Parathyroid
C.
Adrenal
D.
Pituitary
Ans:
Thyroid
Explanation :
Endocrine glands are glands of the endocrine system that, secrete their products, hormones, directly into the blood rather than through a duct. The main endocrine glands include the pituitary gland, pancreas, ovaries, testes, thyroid gland, and adrenal glands. The thyroid gland in vertebrate anatomy, is one of the largest endocrine glands. The thyroid gland is found in the neck, below the thyroid cartilage (which forms the laryngeal prominence, or "Adam's apple").
[4] Insulin is a kind of .
A.
hormone
B.
protein
C.
enzyme
D.
vitamin
Ans:
hormone
Explanation :
Insulin is a hormone made by the pancreas that allows our body to use sugar (glucose) from carbohydrates in the food that we eat for energy or to store glucose for future use Insulin helps keeps your blood sugar level from getting too hig (hyperglycemia) or too low hypoglycemia.
[5] The charcoal used to decolorize raw sugar is -
A.
Animal charcoal
B.
Sugar charcoal
C.
(2) Cocoanut charcoal
D.
Wood charcoal
Ans:
Wood charcoal
Explanation :
Wood charcoal is porous and can absorb liquids and gases on its porous surface. Therefore, it is used in water filters, gas masks and ant gastric tablets, capsule or powder for people suffering from indigestion.
[6] The element which is rich in most leafy vegetables is -
A.
Phosphorous
B.
Zinc
C.
Iron
D.
Calcium
Ans:
Iron
Explanation :
Green leafy vegetables are rich in iron as well as calcium. For example, Spinach is a dark, leafy green vegetable which is high in iron. One cup of cooked spinach provides one with 6.5 mg of iron which is an essential mineral needed by the human body and is a component of many proteins, including hemoglobin, which helps red blood cells deliver oxygen to all areas of the body
[7] Polio is caused by -
A.
Bacterium
B.
Fungus
C.
Virus
D.
Insect
Ans:
Virus
Explanation :
Poliomyelitis, often called polio or infantile paralysis, is an acute, viral, infectious disease spread from person to person, primarily via the fecal-oral route.
[8] The functions of pacemaker is -
A.
Regulation of urine formation
B.
Regulation of digestion
C.
Initiation of heart beat
D.
Initiation of respiration
Ans:
Initiation of heart beat
Explanation :
A pacemaker is a medical device that uses electrical impulses, delivered by electrodes contacting the heart muscles, to initiate and regulate the beating of the heart. The primary purpose of a pacemaker is to maintain an adequate heart rate, either because the heart's native pacemaker is not fast enough, or there is a block in the heart's electrical conduction system.
[9] The best method of disposal of garbage is -
A.
Vermiculture
B.
Incineration
C.
Land filling
D.
Burning
Ans:
Incineration
Explanation :
Incineration is a disposal method in which solid organic wastes are subjected to combustion so as to convert them into residue and gaseous products. This method is useful for disposal of both municipal solid waste and solid residue from waste water treatment.
[10] Transpiration is mainly effective during .
A.
Day
B.
Early evening
C.
Just after sunset
D.
Night
Ans:
Night
Explanation :
While the effect of root pressure in transport of water is more important at night, Transpiration is important during the day when the stomata are open. Thus, transpiration pull becomes the major driving force in the movement of water in the xylem during daytime.
[11] The smallest flowering plant is -
A.
Wolffia
B.
Lemma
C.
Azolla
D.
Ficus
Ans:
Wolffia
Explanation :
Wolffia is a genus of 9 to 11 species which include the smallest flowering plants on Earth. Commonly called watermeal or duckweed, these aquatic plants resemble specks of cornmeal floating on the water. Wolffia species are free-floating thalli, green or yellow-green, and without roots. The flower is produced in a depression on the top surface of the plant body. It has one stamen and one pistil. Individuals often float together in pairs or form floating mats with related plants, such as Lemna and Spirodela species.
[12] Which amongst the following is the largest mammal?
A.
Elephant
B.
Whale
C.
Dinosaur
D.
Rhinoceros
Ans:
Whale
Explanation :
Blue whales are the largest animals ever known to have lived on Earth. These magnificent marine mammals rule the oceans at up to 100 feet (30 meters) long and upwards of 200 tons (181 metric tons). Their tongues alone can weigh as much as an elephant, their hearts, as much as an automobile. Blue whales reach these mind-boggling dimensions on a diet composed nearly exclusively of tiny shrimplike animals called krill. During certain times of the year, a single adult blue whale consumes about 4 tons (3.6 metric tons) of krill a day.
[13] Which part becomes modified as the tusk of elephant?
A.
Canine
B.
Premolar
C.
Second incisor
D.
Molar
Ans:
Second incisor
Explanation :
Tusks are elongated, continuously growing front teeth, usually but not always in pairs, that protrude well beyond the mouth of certain mammal species. They are most commonly canines, as with warthogs, pig, and walruses, or, in the case of elephants, elongated incisors. In most tusked species both the males and the females have tusks although the males' are larger.
[14] One of these vitamins is called erythrocyte maturation factor -
A.
A
B.
C
C.
K
D.
B-12
Ans:
B-12
Explanation :
Vitamin B12, also called cobalamin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system and for the formation of blood. Hence, it is also known as erythrocyte maturation factor.
[15] Which among the following is not a connective tissue?
A.
Blood
B.
Bone
C.
Skin
D.
Cartilage
Ans:
Skin
Explanation :
Skin is composed of epithelial cells, and is therefore not an example of connective tissue. The major types of connective tissue include bone, adipose, blood, and cartilage. Connective tissue is responsible for binding and support of other tissue.
[16] Deep fried food materials are carcinogenic because they are rich in -
A.
Fats
B.
Hydrocarbons
C.
Cooking oil
D.
Nicotine
Ans:
Hydrocarbons
Explanation :
If foods are overheated or burnt, a group of carcinogenic substances called polycyclic aromatic hydrocarbons (PAHs) are produced. PAHs represent a very large group of compounds. Chemically, they consist of fused aromatic rings made up of carbon and hydrogen atoms. After being ingested, PAHs can be absorbed in the intestine and distributed to other organs through blood circulation.
[17] The toxicity of which of the following heavy metals leads to liver cirrhosis?
A.
Copper
B.
Lead
C.
Mercury
D.
Zinc
Ans:
Copper
Explanation :
Cirrhosis is a consequence of chronic liver disease characterized by replacement of liver tissue by fibrosis, scar tissue and regenerative nodules (lumps that occur as a result of a process in which damaged tissue is regenerated), leading to loss of liver function. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease. Some inherited diseases that can cause cirrhosis include Wilson’s disease (which causes an accumulation of copper in the body), alpha-1 antitrypsin deficiency (a genetic disorder caused by defective production of a particular enzyme), and glycogen storage diseases (a group of disorders that cause abnormal amounts of glycogen to be stored in the liver).
[18] What is the name of vessel that delivers the nutrient rich blood from the stomach and small intestine to the liver?
A.
left hepatic artery
B.
Hepatic vein
C.
Right hepatic artery
D.
Hepatic portal vein
Ans:
Hepatic portal vein
Explanation :
The portal vein or hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver. This blood contains nutrients and toxins extracted from digested contents.
[19] 'Ringworm' is a disease caused by -
A.
Fungi
B.
Bacteria
C.
Virus
D.
Flies
Ans:
Fungi
Explanation :
Dermatophytosis or ringworm is a clinical condition caused by fungal infection of the skin in humans, pets such as cats, and domesticated animals such as sheep and cattle. The term “ringworm” is a misnomer, since the condition is caused by fungi of several different species and not by parasitic worms. The fungi that cause parasitic infection (dermatophytes) feed on keratin, the material found in the outer layer of skin, hair, and nails. These fungi thrive on skin that is warm and moist, but may also survive directly on the outsides of hair shafts or in their interiors. In pets, the fungus responsible for the disease survives in skin and on the outer surface of hairs.
[20] Which one of the following diseases is caused by virus?
A.
Tuberculosis
B.
Typhoid
C.
Influenza
D.
Diphtheria
Ans:
Influenza
Explanation :
Influenza, commonly known as the flu, is an infectious disease caused by an influenza virus. Symptoms can be mild to severe.
[21] In which of the following groups, animals bear no teeth?
A.
Peacock, Ostrich, Tortoise
B.
Owl, Loris, Crow
C.
Alligator, Turtle Tortoise
D.
Turtle, Kiwi, Cow
Ans:
Peacock, Ostrich, Tortoise
Explanation :
The sloth, which is not a bear, has no front teeth. Other mammals are the armadillo and anteater (Order Xenarthra) and baleen whales. Among reptiles the turtles and tortoise. Among amphibians most toads are toothless. Modern birds have a toothless beak or bill. Peacock do not have teeth. Within the fish, all the Cyprinids, some catfish, paddelfish.
[22] Red rot is a disease caused to which of the following plant?
A.
Paddy
B.
Sugarcane
C.
Mustard
D.
Wheat
Ans:
Sugarcane
Explanation :
Red rot is one of the oldest known diseases of sugarcane that is caused by the fungus Colletotrichum falcatum (Glomerella tucumanensis).
[23] Enzymes are absent in -
A.
fungi
B.
bacteria
C.
viruses
D.
algae
Ans:
viruses
Explanation :
Enzymes are absent in viruses because they are unable to transmit their nucleic acid from one host cell to another.
[24] Olive Ridley is a famous -
A.
cricketer
B.
turtle species
C.
grass type vegetation
D.
Another name for olive tree
Ans:
turtle species
Explanation :
The Olive Ridley is considered the most abundant sea turtle in the world, with an estimated 800,000 nesting females annually. The Olive Ridley gets its name from the olive coloration of its heart-shaped top shell (carapace). The Olive Ridley has one of the most extraordinary nesting habits in the natural world. Large groups of turtles gather off shore of nesting beaches. Then, all at once, vast numbers of turtles come ashore and nest in what is known as an "arribada". During these arribadas, hundreds to thousands of females come ashore to lay their eggs.
[25] The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of -
A.
45-50 decibels
B.
200-250 decibels
C.
5-10 decibels
D.
2000-2500 decibels
Ans:
5-10 decibels
Explanation :
Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In humans the audible range of frequencies is usually said to be 20 Hz (cycles per second) to 20 kHz (20,000 Hz), although there is considerable variation between individuals, especially at the high frequency end, where a gradual decline with age is considered normal. Specifically, humans have a maximum aural range that begins as low as 12 Hz under ideal laboratory conditions, to 20 kHz in most children and some adults, but the range shrinks during life, usually beginning at around the age of 8 with the higher frequencies fading. Inaudible sound waves can be detected (felt) by humans through physical body vibration in the range of 4 to 16 Hz.
Explanation :
The humerus is a long bone in the arm or forelimb that runs from the shoulder to the elbow. It connects the scapula and the two bones of the lower arm, the radius and ulna.
[2] The pH of human blood is -
A.
7.2
B.
7.8
C.
6.6
D.
7.4
Ans:
7.4
Explanation :
Different fluids in the human body generally have a delicate range of acid-alkaline balance they maintain for optimal functioning. Human blood has a normal pH of about 7.41. The pH of urine has a wider range. Normal ranges for urine pH are from 4.5 to 8. When the pH levels of blood or other key bodily fluids fall out of optimal pH range due to adverse metabolic or respiratory conditions, the human body goes through a variety of adjustments to try to correct the acid or alkaline imbalance. If the body is too alkaline, a condition called alkalosis results. Conversely, an overly acid condition results in acidosis.
[3] Which amongst the following is largest endocrine gland in the body?
A.
Thyroid
B.
Parathyroid
C.
Adrenal
D.
Pituitary
Ans:
Thyroid
Explanation :
Endocrine glands are glands of the endocrine system that, secrete their products, hormones, directly into the blood rather than through a duct. The main endocrine glands include the pituitary gland, pancreas, ovaries, testes, thyroid gland, and adrenal glands. The thyroid gland in vertebrate anatomy, is one of the largest endocrine glands. The thyroid gland is found in the neck, below the thyroid cartilage (which forms the laryngeal prominence, or "Adam's apple").
[4] Insulin is a kind of .
A.
hormone
B.
protein
C.
enzyme
D.
vitamin
Ans:
hormone
Explanation :
Insulin is a hormone made by the pancreas that allows our body to use sugar (glucose) from carbohydrates in the food that we eat for energy or to store glucose for future use Insulin helps keeps your blood sugar level from getting too hig (hyperglycemia) or too low hypoglycemia.
[5] The charcoal used to decolorize raw sugar is -
A.
Animal charcoal
B.
Sugar charcoal
C.
(2) Cocoanut charcoal
D.
Wood charcoal
Ans:
Wood charcoal
Explanation :
Wood charcoal is porous and can absorb liquids and gases on its porous surface. Therefore, it is used in water filters, gas masks and ant gastric tablets, capsule or powder for people suffering from indigestion.
[6] The element which is rich in most leafy vegetables is -
A.
Phosphorous
B.
Zinc
C.
Iron
D.
Calcium
Ans:
Iron
Explanation :
Green leafy vegetables are rich in iron as well as calcium. For example, Spinach is a dark, leafy green vegetable which is high in iron. One cup of cooked spinach provides one with 6.5 mg of iron which is an essential mineral needed by the human body and is a component of many proteins, including hemoglobin, which helps red blood cells deliver oxygen to all areas of the body
[7] Polio is caused by -
A.
Bacterium
B.
Fungus
C.
Virus
D.
Insect
Ans:
Virus
Explanation :
Poliomyelitis, often called polio or infantile paralysis, is an acute, viral, infectious disease spread from person to person, primarily via the fecal-oral route.
[8] The functions of pacemaker is -
A.
Regulation of urine formation
B.
Regulation of digestion
C.
Initiation of heart beat
D.
Initiation of respiration
Ans:
Initiation of heart beat
Explanation :
A pacemaker is a medical device that uses electrical impulses, delivered by electrodes contacting the heart muscles, to initiate and regulate the beating of the heart. The primary purpose of a pacemaker is to maintain an adequate heart rate, either because the heart's native pacemaker is not fast enough, or there is a block in the heart's electrical conduction system.
[9] The best method of disposal of garbage is -
A.
Vermiculture
B.
Incineration
C.
Land filling
D.
Burning
Ans:
Incineration
Explanation :
Incineration is a disposal method in which solid organic wastes are subjected to combustion so as to convert them into residue and gaseous products. This method is useful for disposal of both municipal solid waste and solid residue from waste water treatment.
[10] Transpiration is mainly effective during .
A.
Day
B.
Early evening
C.
Just after sunset
D.
Night
Ans:
Night
Explanation :
While the effect of root pressure in transport of water is more important at night, Transpiration is important during the day when the stomata are open. Thus, transpiration pull becomes the major driving force in the movement of water in the xylem during daytime.
[11] The smallest flowering plant is -
A.
Wolffia
B.
Lemma
C.
Azolla
D.
Ficus
Ans:
Wolffia
Explanation :
Wolffia is a genus of 9 to 11 species which include the smallest flowering plants on Earth. Commonly called watermeal or duckweed, these aquatic plants resemble specks of cornmeal floating on the water. Wolffia species are free-floating thalli, green or yellow-green, and without roots. The flower is produced in a depression on the top surface of the plant body. It has one stamen and one pistil. Individuals often float together in pairs or form floating mats with related plants, such as Lemna and Spirodela species.
[12] Which amongst the following is the largest mammal?
A.
Elephant
B.
Whale
C.
Dinosaur
D.
Rhinoceros
Ans:
Whale
Explanation :
Blue whales are the largest animals ever known to have lived on Earth. These magnificent marine mammals rule the oceans at up to 100 feet (30 meters) long and upwards of 200 tons (181 metric tons). Their tongues alone can weigh as much as an elephant, their hearts, as much as an automobile. Blue whales reach these mind-boggling dimensions on a diet composed nearly exclusively of tiny shrimplike animals called krill. During certain times of the year, a single adult blue whale consumes about 4 tons (3.6 metric tons) of krill a day.
[13] Which part becomes modified as the tusk of elephant?
A.
Canine
B.
Premolar
C.
Second incisor
D.
Molar
Ans:
Second incisor
Explanation :
Tusks are elongated, continuously growing front teeth, usually but not always in pairs, that protrude well beyond the mouth of certain mammal species. They are most commonly canines, as with warthogs, pig, and walruses, or, in the case of elephants, elongated incisors. In most tusked species both the males and the females have tusks although the males' are larger.
[14] One of these vitamins is called erythrocyte maturation factor -
A.
A
B.
C
C.
K
D.
B-12
Ans:
B-12
Explanation :
Vitamin B12, also called cobalamin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system and for the formation of blood. Hence, it is also known as erythrocyte maturation factor.
[15] Which among the following is not a connective tissue?
A.
Blood
B.
Bone
C.
Skin
D.
Cartilage
Ans:
Skin
Explanation :
Skin is composed of epithelial cells, and is therefore not an example of connective tissue. The major types of connective tissue include bone, adipose, blood, and cartilage. Connective tissue is responsible for binding and support of other tissue.
[16] Deep fried food materials are carcinogenic because they are rich in -
A.
Fats
B.
Hydrocarbons
C.
Cooking oil
D.
Nicotine
Ans:
Hydrocarbons
Explanation :
If foods are overheated or burnt, a group of carcinogenic substances called polycyclic aromatic hydrocarbons (PAHs) are produced. PAHs represent a very large group of compounds. Chemically, they consist of fused aromatic rings made up of carbon and hydrogen atoms. After being ingested, PAHs can be absorbed in the intestine and distributed to other organs through blood circulation.
[17] The toxicity of which of the following heavy metals leads to liver cirrhosis?
A.
Copper
B.
Lead
C.
Mercury
D.
Zinc
Ans:
Copper
Explanation :
Cirrhosis is a consequence of chronic liver disease characterized by replacement of liver tissue by fibrosis, scar tissue and regenerative nodules (lumps that occur as a result of a process in which damaged tissue is regenerated), leading to loss of liver function. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease. Some inherited diseases that can cause cirrhosis include Wilson’s disease (which causes an accumulation of copper in the body), alpha-1 antitrypsin deficiency (a genetic disorder caused by defective production of a particular enzyme), and glycogen storage diseases (a group of disorders that cause abnormal amounts of glycogen to be stored in the liver).
[18] What is the name of vessel that delivers the nutrient rich blood from the stomach and small intestine to the liver?
A.
left hepatic artery
B.
Hepatic vein
C.
Right hepatic artery
D.
Hepatic portal vein
Ans:
Hepatic portal vein
Explanation :
The portal vein or hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver. This blood contains nutrients and toxins extracted from digested contents.
[19] 'Ringworm' is a disease caused by -
A.
Fungi
B.
Bacteria
C.
Virus
D.
Flies
Ans:
Fungi
Explanation :
Dermatophytosis or ringworm is a clinical condition caused by fungal infection of the skin in humans, pets such as cats, and domesticated animals such as sheep and cattle. The term “ringworm” is a misnomer, since the condition is caused by fungi of several different species and not by parasitic worms. The fungi that cause parasitic infection (dermatophytes) feed on keratin, the material found in the outer layer of skin, hair, and nails. These fungi thrive on skin that is warm and moist, but may also survive directly on the outsides of hair shafts or in their interiors. In pets, the fungus responsible for the disease survives in skin and on the outer surface of hairs.
[20] Which one of the following diseases is caused by virus?
A.
Tuberculosis
B.
Typhoid
C.
Influenza
D.
Diphtheria
Ans:
Influenza
Explanation :
Influenza, commonly known as the flu, is an infectious disease caused by an influenza virus. Symptoms can be mild to severe.
[21] In which of the following groups, animals bear no teeth?
A.
Peacock, Ostrich, Tortoise
B.
Owl, Loris, Crow
C.
Alligator, Turtle Tortoise
D.
Turtle, Kiwi, Cow
Ans:
Peacock, Ostrich, Tortoise
Explanation :
The sloth, which is not a bear, has no front teeth. Other mammals are the armadillo and anteater (Order Xenarthra) and baleen whales. Among reptiles the turtles and tortoise. Among amphibians most toads are toothless. Modern birds have a toothless beak or bill. Peacock do not have teeth. Within the fish, all the Cyprinids, some catfish, paddelfish.
[22] Red rot is a disease caused to which of the following plant?
A.
Paddy
B.
Sugarcane
C.
Mustard
D.
Wheat
Ans:
Sugarcane
Explanation :
Red rot is one of the oldest known diseases of sugarcane that is caused by the fungus Colletotrichum falcatum (Glomerella tucumanensis).
[23] Enzymes are absent in -
A.
fungi
B.
bacteria
C.
viruses
D.
algae
Ans:
viruses
Explanation :
Enzymes are absent in viruses because they are unable to transmit their nucleic acid from one host cell to another.
[24] Olive Ridley is a famous -
A.
cricketer
B.
turtle species
C.
grass type vegetation
D.
Another name for olive tree
Ans:
turtle species
Explanation :
The Olive Ridley is considered the most abundant sea turtle in the world, with an estimated 800,000 nesting females annually. The Olive Ridley gets its name from the olive coloration of its heart-shaped top shell (carapace). The Olive Ridley has one of the most extraordinary nesting habits in the natural world. Large groups of turtles gather off shore of nesting beaches. Then, all at once, vast numbers of turtles come ashore and nest in what is known as an "arribada". During these arribadas, hundreds to thousands of females come ashore to lay their eggs.
[25] The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of -
A.
45-50 decibels
B.
200-250 decibels
C.
5-10 decibels
D.
2000-2500 decibels
Ans:
5-10 decibels
Explanation :
Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In humans the audible range of frequencies is usually said to be 20 Hz (cycles per second) to 20 kHz (20,000 Hz), although there is considerable variation between individuals, especially at the high frequency end, where a gradual decline with age is considered normal. Specifically, humans have a maximum aural range that begins as low as 12 Hz under ideal laboratory conditions, to 20 kHz in most children and some adults, but the range shrinks during life, usually beginning at around the age of 8 with the higher frequencies fading. Inaudible sound waves can be detected (felt) by humans through physical body vibration in the range of 4 to 16 Hz.
Explanation :
Endocrine glands are glands of the endocrine system that, secrete their products, hormones, directly into the blood rather than through a duct. The main endocrine glands include the pituitary gland, pancreas, ovaries, testes, thyroid gland, and adrenal glands. The thyroid gland in vertebrate anatomy, is one of the largest endocrine glands. The thyroid gland is found in the neck, below the thyroid cartilage (which forms the laryngeal prominence, or "Adam's apple").
[4] Insulin is a kind of .
A.
hormone
B.
protein
C.
enzyme
D.
vitamin
Ans:
hormone
Explanation :
Insulin is a hormone made by the pancreas that allows our body to use sugar (glucose) from carbohydrates in the food that we eat for energy or to store glucose for future use Insulin helps keeps your blood sugar level from getting too hig (hyperglycemia) or too low hypoglycemia.
[5] The charcoal used to decolorize raw sugar is -
A.
Animal charcoal
B.
Sugar charcoal
C.
(2) Cocoanut charcoal
D.
Wood charcoal
Ans:
Wood charcoal
Explanation :
Wood charcoal is porous and can absorb liquids and gases on its porous surface. Therefore, it is used in water filters, gas masks and ant gastric tablets, capsule or powder for people suffering from indigestion.
[6] The element which is rich in most leafy vegetables is -
A.
Phosphorous
B.
Zinc
C.
Iron
D.
Calcium
Ans:
Iron
Explanation :
Green leafy vegetables are rich in iron as well as calcium. For example, Spinach is a dark, leafy green vegetable which is high in iron. One cup of cooked spinach provides one with 6.5 mg of iron which is an essential mineral needed by the human body and is a component of many proteins, including hemoglobin, which helps red blood cells deliver oxygen to all areas of the body
[7] Polio is caused by -
A.
Bacterium
B.
Fungus
C.
Virus
D.
Insect
Ans:
Virus
Explanation :
Poliomyelitis, often called polio or infantile paralysis, is an acute, viral, infectious disease spread from person to person, primarily via the fecal-oral route.
[8] The functions of pacemaker is -
A.
Regulation of urine formation
B.
Regulation of digestion
C.
Initiation of heart beat
D.
Initiation of respiration
Ans:
Initiation of heart beat
Explanation :
A pacemaker is a medical device that uses electrical impulses, delivered by electrodes contacting the heart muscles, to initiate and regulate the beating of the heart. The primary purpose of a pacemaker is to maintain an adequate heart rate, either because the heart's native pacemaker is not fast enough, or there is a block in the heart's electrical conduction system.
[9] The best method of disposal of garbage is -
A.
Vermiculture
B.
Incineration
C.
Land filling
D.
Burning
Ans:
Incineration
Explanation :
Incineration is a disposal method in which solid organic wastes are subjected to combustion so as to convert them into residue and gaseous products. This method is useful for disposal of both municipal solid waste and solid residue from waste water treatment.
[10] Transpiration is mainly effective during .
A.
Day
B.
Early evening
C.
Just after sunset
D.
Night
Ans:
Night
Explanation :
While the effect of root pressure in transport of water is more important at night, Transpiration is important during the day when the stomata are open. Thus, transpiration pull becomes the major driving force in the movement of water in the xylem during daytime.
[11] The smallest flowering plant is -
A.
Wolffia
B.
Lemma
C.
Azolla
D.
Ficus
Ans:
Wolffia
Explanation :
Wolffia is a genus of 9 to 11 species which include the smallest flowering plants on Earth. Commonly called watermeal or duckweed, these aquatic plants resemble specks of cornmeal floating on the water. Wolffia species are free-floating thalli, green or yellow-green, and without roots. The flower is produced in a depression on the top surface of the plant body. It has one stamen and one pistil. Individuals often float together in pairs or form floating mats with related plants, such as Lemna and Spirodela species.
[12] Which amongst the following is the largest mammal?
A.
Elephant
B.
Whale
C.
Dinosaur
D.
Rhinoceros
Ans:
Whale
Explanation :
Blue whales are the largest animals ever known to have lived on Earth. These magnificent marine mammals rule the oceans at up to 100 feet (30 meters) long and upwards of 200 tons (181 metric tons). Their tongues alone can weigh as much as an elephant, their hearts, as much as an automobile. Blue whales reach these mind-boggling dimensions on a diet composed nearly exclusively of tiny shrimplike animals called krill. During certain times of the year, a single adult blue whale consumes about 4 tons (3.6 metric tons) of krill a day.
[13] Which part becomes modified as the tusk of elephant?
A.
Canine
B.
Premolar
C.
Second incisor
D.
Molar
Ans:
Second incisor
Explanation :
Tusks are elongated, continuously growing front teeth, usually but not always in pairs, that protrude well beyond the mouth of certain mammal species. They are most commonly canines, as with warthogs, pig, and walruses, or, in the case of elephants, elongated incisors. In most tusked species both the males and the females have tusks although the males' are larger.
[14] One of these vitamins is called erythrocyte maturation factor -
A.
A
B.
C
C.
K
D.
B-12
Ans:
B-12
Explanation :
Vitamin B12, also called cobalamin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system and for the formation of blood. Hence, it is also known as erythrocyte maturation factor.
[15] Which among the following is not a connective tissue?
A.
Blood
B.
Bone
C.
Skin
D.
Cartilage
Ans:
Skin
Explanation :
Skin is composed of epithelial cells, and is therefore not an example of connective tissue. The major types of connective tissue include bone, adipose, blood, and cartilage. Connective tissue is responsible for binding and support of other tissue.
[16] Deep fried food materials are carcinogenic because they are rich in -
A.
Fats
B.
Hydrocarbons
C.
Cooking oil
D.
Nicotine
Ans:
Hydrocarbons
Explanation :
If foods are overheated or burnt, a group of carcinogenic substances called polycyclic aromatic hydrocarbons (PAHs) are produced. PAHs represent a very large group of compounds. Chemically, they consist of fused aromatic rings made up of carbon and hydrogen atoms. After being ingested, PAHs can be absorbed in the intestine and distributed to other organs through blood circulation.
[17] The toxicity of which of the following heavy metals leads to liver cirrhosis?
A.
Copper
B.
Lead
C.
Mercury
D.
Zinc
Ans:
Copper
Explanation :
Cirrhosis is a consequence of chronic liver disease characterized by replacement of liver tissue by fibrosis, scar tissue and regenerative nodules (lumps that occur as a result of a process in which damaged tissue is regenerated), leading to loss of liver function. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease. Some inherited diseases that can cause cirrhosis include Wilson’s disease (which causes an accumulation of copper in the body), alpha-1 antitrypsin deficiency (a genetic disorder caused by defective production of a particular enzyme), and glycogen storage diseases (a group of disorders that cause abnormal amounts of glycogen to be stored in the liver).
[18] What is the name of vessel that delivers the nutrient rich blood from the stomach and small intestine to the liver?
A.
left hepatic artery
B.
Hepatic vein
C.
Right hepatic artery
D.
Hepatic portal vein
Ans:
Hepatic portal vein
Explanation :
The portal vein or hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver. This blood contains nutrients and toxins extracted from digested contents.
[19] 'Ringworm' is a disease caused by -
A.
Fungi
B.
Bacteria
C.
Virus
D.
Flies
Ans:
Fungi
Explanation :
Dermatophytosis or ringworm is a clinical condition caused by fungal infection of the skin in humans, pets such as cats, and domesticated animals such as sheep and cattle. The term “ringworm” is a misnomer, since the condition is caused by fungi of several different species and not by parasitic worms. The fungi that cause parasitic infection (dermatophytes) feed on keratin, the material found in the outer layer of skin, hair, and nails. These fungi thrive on skin that is warm and moist, but may also survive directly on the outsides of hair shafts or in their interiors. In pets, the fungus responsible for the disease survives in skin and on the outer surface of hairs.
[20] Which one of the following diseases is caused by virus?
A.
Tuberculosis
B.
Typhoid
C.
Influenza
D.
Diphtheria
Ans:
Influenza
Explanation :
Influenza, commonly known as the flu, is an infectious disease caused by an influenza virus. Symptoms can be mild to severe.
[21] In which of the following groups, animals bear no teeth?
A.
Peacock, Ostrich, Tortoise
B.
Owl, Loris, Crow
C.
Alligator, Turtle Tortoise
D.
Turtle, Kiwi, Cow
Ans:
Peacock, Ostrich, Tortoise
Explanation :
The sloth, which is not a bear, has no front teeth. Other mammals are the armadillo and anteater (Order Xenarthra) and baleen whales. Among reptiles the turtles and tortoise. Among amphibians most toads are toothless. Modern birds have a toothless beak or bill. Peacock do not have teeth. Within the fish, all the Cyprinids, some catfish, paddelfish.
[22] Red rot is a disease caused to which of the following plant?
A.
Paddy
B.
Sugarcane
C.
Mustard
D.
Wheat
Ans:
Sugarcane
Explanation :
Red rot is one of the oldest known diseases of sugarcane that is caused by the fungus Colletotrichum falcatum (Glomerella tucumanensis).
[23] Enzymes are absent in -
A.
fungi
B.
bacteria
C.
viruses
D.
algae
Ans:
viruses
Explanation :
Enzymes are absent in viruses because they are unable to transmit their nucleic acid from one host cell to another.
[24] Olive Ridley is a famous -
A.
cricketer
B.
turtle species
C.
grass type vegetation
D.
Another name for olive tree
Ans:
turtle species
Explanation :
The Olive Ridley is considered the most abundant sea turtle in the world, with an estimated 800,000 nesting females annually. The Olive Ridley gets its name from the olive coloration of its heart-shaped top shell (carapace). The Olive Ridley has one of the most extraordinary nesting habits in the natural world. Large groups of turtles gather off shore of nesting beaches. Then, all at once, vast numbers of turtles come ashore and nest in what is known as an "arribada". During these arribadas, hundreds to thousands of females come ashore to lay their eggs.
[25] The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of -
A.
45-50 decibels
B.
200-250 decibels
C.
5-10 decibels
D.
2000-2500 decibels
Ans:
5-10 decibels
Explanation :
Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In humans the audible range of frequencies is usually said to be 20 Hz (cycles per second) to 20 kHz (20,000 Hz), although there is considerable variation between individuals, especially at the high frequency end, where a gradual decline with age is considered normal. Specifically, humans have a maximum aural range that begins as low as 12 Hz under ideal laboratory conditions, to 20 kHz in most children and some adults, but the range shrinks during life, usually beginning at around the age of 8 with the higher frequencies fading. Inaudible sound waves can be detected (felt) by humans through physical body vibration in the range of 4 to 16 Hz.
Explanation :
Wood charcoal is porous and can absorb liquids and gases on its porous surface. Therefore, it is used in water filters, gas masks and ant gastric tablets, capsule or powder for people suffering from indigestion.
[6] The element which is rich in most leafy vegetables is -
A.
Phosphorous
B.
Zinc
C.
Iron
D.
Calcium
Ans:
Iron
Explanation :
Green leafy vegetables are rich in iron as well as calcium. For example, Spinach is a dark, leafy green vegetable which is high in iron. One cup of cooked spinach provides one with 6.5 mg of iron which is an essential mineral needed by the human body and is a component of many proteins, including hemoglobin, which helps red blood cells deliver oxygen to all areas of the body
[7] Polio is caused by -
A.
Bacterium
B.
Fungus
C.
Virus
D.
Insect
Ans:
Virus
Explanation :
Poliomyelitis, often called polio or infantile paralysis, is an acute, viral, infectious disease spread from person to person, primarily via the fecal-oral route.
[8] The functions of pacemaker is -
A.
Regulation of urine formation
B.
Regulation of digestion
C.
Initiation of heart beat
D.
Initiation of respiration
Ans:
Initiation of heart beat
Explanation :
A pacemaker is a medical device that uses electrical impulses, delivered by electrodes contacting the heart muscles, to initiate and regulate the beating of the heart. The primary purpose of a pacemaker is to maintain an adequate heart rate, either because the heart's native pacemaker is not fast enough, or there is a block in the heart's electrical conduction system.
[9] The best method of disposal of garbage is -
A.
Vermiculture
B.
Incineration
C.
Land filling
D.
Burning
Ans:
Incineration
Explanation :
Incineration is a disposal method in which solid organic wastes are subjected to combustion so as to convert them into residue and gaseous products. This method is useful for disposal of both municipal solid waste and solid residue from waste water treatment.
[10] Transpiration is mainly effective during .
A.
Day
B.
Early evening
C.
Just after sunset
D.
Night
Ans:
Night
Explanation :
While the effect of root pressure in transport of water is more important at night, Transpiration is important during the day when the stomata are open. Thus, transpiration pull becomes the major driving force in the movement of water in the xylem during daytime.
[11] The smallest flowering plant is -
A.
Wolffia
B.
Lemma
C.
Azolla
D.
Ficus
Ans:
Wolffia
Explanation :
Wolffia is a genus of 9 to 11 species which include the smallest flowering plants on Earth. Commonly called watermeal or duckweed, these aquatic plants resemble specks of cornmeal floating on the water. Wolffia species are free-floating thalli, green or yellow-green, and without roots. The flower is produced in a depression on the top surface of the plant body. It has one stamen and one pistil. Individuals often float together in pairs or form floating mats with related plants, such as Lemna and Spirodela species.
[12] Which amongst the following is the largest mammal?
A.
Elephant
B.
Whale
C.
Dinosaur
D.
Rhinoceros
Ans:
Whale
Explanation :
Blue whales are the largest animals ever known to have lived on Earth. These magnificent marine mammals rule the oceans at up to 100 feet (30 meters) long and upwards of 200 tons (181 metric tons). Their tongues alone can weigh as much as an elephant, their hearts, as much as an automobile. Blue whales reach these mind-boggling dimensions on a diet composed nearly exclusively of tiny shrimplike animals called krill. During certain times of the year, a single adult blue whale consumes about 4 tons (3.6 metric tons) of krill a day.
[13] Which part becomes modified as the tusk of elephant?
A.
Canine
B.
Premolar
C.
Second incisor
D.
Molar
Ans:
Second incisor
Explanation :
Tusks are elongated, continuously growing front teeth, usually but not always in pairs, that protrude well beyond the mouth of certain mammal species. They are most commonly canines, as with warthogs, pig, and walruses, or, in the case of elephants, elongated incisors. In most tusked species both the males and the females have tusks although the males' are larger.
[14] One of these vitamins is called erythrocyte maturation factor -
A.
A
B.
C
C.
K
D.
B-12
Ans:
B-12
Explanation :
Vitamin B12, also called cobalamin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system and for the formation of blood. Hence, it is also known as erythrocyte maturation factor.
[15] Which among the following is not a connective tissue?
A.
Blood
B.
Bone
C.
Skin
D.
Cartilage
Ans:
Skin
Explanation :
Skin is composed of epithelial cells, and is therefore not an example of connective tissue. The major types of connective tissue include bone, adipose, blood, and cartilage. Connective tissue is responsible for binding and support of other tissue.
[16] Deep fried food materials are carcinogenic because they are rich in -
A.
Fats
B.
Hydrocarbons
C.
Cooking oil
D.
Nicotine
Ans:
Hydrocarbons
Explanation :
If foods are overheated or burnt, a group of carcinogenic substances called polycyclic aromatic hydrocarbons (PAHs) are produced. PAHs represent a very large group of compounds. Chemically, they consist of fused aromatic rings made up of carbon and hydrogen atoms. After being ingested, PAHs can be absorbed in the intestine and distributed to other organs through blood circulation.
[17] The toxicity of which of the following heavy metals leads to liver cirrhosis?
A.
Copper
B.
Lead
C.
Mercury
D.
Zinc
Ans:
Copper
Explanation :
Cirrhosis is a consequence of chronic liver disease characterized by replacement of liver tissue by fibrosis, scar tissue and regenerative nodules (lumps that occur as a result of a process in which damaged tissue is regenerated), leading to loss of liver function. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease. Some inherited diseases that can cause cirrhosis include Wilson’s disease (which causes an accumulation of copper in the body), alpha-1 antitrypsin deficiency (a genetic disorder caused by defective production of a particular enzyme), and glycogen storage diseases (a group of disorders that cause abnormal amounts of glycogen to be stored in the liver).
[18] What is the name of vessel that delivers the nutrient rich blood from the stomach and small intestine to the liver?
A.
left hepatic artery
B.
Hepatic vein
C.
Right hepatic artery
D.
Hepatic portal vein
Ans:
Hepatic portal vein
Explanation :
The portal vein or hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver. This blood contains nutrients and toxins extracted from digested contents.
[19] 'Ringworm' is a disease caused by -
A.
Fungi
B.
Bacteria
C.
Virus
D.
Flies
Ans:
Fungi
Explanation :
Dermatophytosis or ringworm is a clinical condition caused by fungal infection of the skin in humans, pets such as cats, and domesticated animals such as sheep and cattle. The term “ringworm” is a misnomer, since the condition is caused by fungi of several different species and not by parasitic worms. The fungi that cause parasitic infection (dermatophytes) feed on keratin, the material found in the outer layer of skin, hair, and nails. These fungi thrive on skin that is warm and moist, but may also survive directly on the outsides of hair shafts or in their interiors. In pets, the fungus responsible for the disease survives in skin and on the outer surface of hairs.
[20] Which one of the following diseases is caused by virus?
A.
Tuberculosis
B.
Typhoid
C.
Influenza
D.
Diphtheria
Ans:
Influenza
Explanation :
Influenza, commonly known as the flu, is an infectious disease caused by an influenza virus. Symptoms can be mild to severe.
[21] In which of the following groups, animals bear no teeth?
A.
Peacock, Ostrich, Tortoise
B.
Owl, Loris, Crow
C.
Alligator, Turtle Tortoise
D.
Turtle, Kiwi, Cow
Ans:
Peacock, Ostrich, Tortoise
Explanation :
The sloth, which is not a bear, has no front teeth. Other mammals are the armadillo and anteater (Order Xenarthra) and baleen whales. Among reptiles the turtles and tortoise. Among amphibians most toads are toothless. Modern birds have a toothless beak or bill. Peacock do not have teeth. Within the fish, all the Cyprinids, some catfish, paddelfish.
[22] Red rot is a disease caused to which of the following plant?
A.
Paddy
B.
Sugarcane
C.
Mustard
D.
Wheat
Ans:
Sugarcane
Explanation :
Red rot is one of the oldest known diseases of sugarcane that is caused by the fungus Colletotrichum falcatum (Glomerella tucumanensis).
[23] Enzymes are absent in -
A.
fungi
B.
bacteria
C.
viruses
D.
algae
Ans:
viruses
Explanation :
Enzymes are absent in viruses because they are unable to transmit their nucleic acid from one host cell to another.
[24] Olive Ridley is a famous -
A.
cricketer
B.
turtle species
C.
grass type vegetation
D.
Another name for olive tree
Ans:
turtle species
Explanation :
The Olive Ridley is considered the most abundant sea turtle in the world, with an estimated 800,000 nesting females annually. The Olive Ridley gets its name from the olive coloration of its heart-shaped top shell (carapace). The Olive Ridley has one of the most extraordinary nesting habits in the natural world. Large groups of turtles gather off shore of nesting beaches. Then, all at once, vast numbers of turtles come ashore and nest in what is known as an "arribada". During these arribadas, hundreds to thousands of females come ashore to lay their eggs.
[25] The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of -
A.
45-50 decibels
B.
200-250 decibels
C.
5-10 decibels
D.
2000-2500 decibels
Ans:
5-10 decibels
Explanation :
Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In humans the audible range of frequencies is usually said to be 20 Hz (cycles per second) to 20 kHz (20,000 Hz), although there is considerable variation between individuals, especially at the high frequency end, where a gradual decline with age is considered normal. Specifically, humans have a maximum aural range that begins as low as 12 Hz under ideal laboratory conditions, to 20 kHz in most children and some adults, but the range shrinks during life, usually beginning at around the age of 8 with the higher frequencies fading. Inaudible sound waves can be detected (felt) by humans through physical body vibration in the range of 4 to 16 Hz.
Explanation :
Poliomyelitis, often called polio or infantile paralysis, is an acute, viral, infectious disease spread from person to person, primarily via the fecal-oral route.
[8] The functions of pacemaker is -
A.
Regulation of urine formation
B.
Regulation of digestion
C.
Initiation of heart beat
D.
Initiation of respiration
Ans:
Initiation of heart beat
Explanation :
A pacemaker is a medical device that uses electrical impulses, delivered by electrodes contacting the heart muscles, to initiate and regulate the beating of the heart. The primary purpose of a pacemaker is to maintain an adequate heart rate, either because the heart's native pacemaker is not fast enough, or there is a block in the heart's electrical conduction system.
[9] The best method of disposal of garbage is -
A.
Vermiculture
B.
Incineration
C.
Land filling
D.
Burning
Ans:
Incineration
Explanation :
Incineration is a disposal method in which solid organic wastes are subjected to combustion so as to convert them into residue and gaseous products. This method is useful for disposal of both municipal solid waste and solid residue from waste water treatment.
[10] Transpiration is mainly effective during .
A.
Day
B.
Early evening
C.
Just after sunset
D.
Night
Ans:
Night
Explanation :
While the effect of root pressure in transport of water is more important at night, Transpiration is important during the day when the stomata are open. Thus, transpiration pull becomes the major driving force in the movement of water in the xylem during daytime.
[11] The smallest flowering plant is -
A.
Wolffia
B.
Lemma
C.
Azolla
D.
Ficus
Ans:
Wolffia
Explanation :
Wolffia is a genus of 9 to 11 species which include the smallest flowering plants on Earth. Commonly called watermeal or duckweed, these aquatic plants resemble specks of cornmeal floating on the water. Wolffia species are free-floating thalli, green or yellow-green, and without roots. The flower is produced in a depression on the top surface of the plant body. It has one stamen and one pistil. Individuals often float together in pairs or form floating mats with related plants, such as Lemna and Spirodela species.
[12] Which amongst the following is the largest mammal?
A.
Elephant
B.
Whale
C.
Dinosaur
D.
Rhinoceros
Ans:
Whale
Explanation :
Blue whales are the largest animals ever known to have lived on Earth. These magnificent marine mammals rule the oceans at up to 100 feet (30 meters) long and upwards of 200 tons (181 metric tons). Their tongues alone can weigh as much as an elephant, their hearts, as much as an automobile. Blue whales reach these mind-boggling dimensions on a diet composed nearly exclusively of tiny shrimplike animals called krill. During certain times of the year, a single adult blue whale consumes about 4 tons (3.6 metric tons) of krill a day.
[13] Which part becomes modified as the tusk of elephant?
A.
Canine
B.
Premolar
C.
Second incisor
D.
Molar
Ans:
Second incisor
Explanation :
Tusks are elongated, continuously growing front teeth, usually but not always in pairs, that protrude well beyond the mouth of certain mammal species. They are most commonly canines, as with warthogs, pig, and walruses, or, in the case of elephants, elongated incisors. In most tusked species both the males and the females have tusks although the males' are larger.
[14] One of these vitamins is called erythrocyte maturation factor -
A.
A
B.
C
C.
K
D.
B-12
Ans:
B-12
Explanation :
Vitamin B12, also called cobalamin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system and for the formation of blood. Hence, it is also known as erythrocyte maturation factor.
[15] Which among the following is not a connective tissue?
A.
Blood
B.
Bone
C.
Skin
D.
Cartilage
Ans:
Skin
Explanation :
Skin is composed of epithelial cells, and is therefore not an example of connective tissue. The major types of connective tissue include bone, adipose, blood, and cartilage. Connective tissue is responsible for binding and support of other tissue.
[16] Deep fried food materials are carcinogenic because they are rich in -
A.
Fats
B.
Hydrocarbons
C.
Cooking oil
D.
Nicotine
Ans:
Hydrocarbons
Explanation :
If foods are overheated or burnt, a group of carcinogenic substances called polycyclic aromatic hydrocarbons (PAHs) are produced. PAHs represent a very large group of compounds. Chemically, they consist of fused aromatic rings made up of carbon and hydrogen atoms. After being ingested, PAHs can be absorbed in the intestine and distributed to other organs through blood circulation.
[17] The toxicity of which of the following heavy metals leads to liver cirrhosis?
A.
Copper
B.
Lead
C.
Mercury
D.
Zinc
Ans:
Copper
Explanation :
Cirrhosis is a consequence of chronic liver disease characterized by replacement of liver tissue by fibrosis, scar tissue and regenerative nodules (lumps that occur as a result of a process in which damaged tissue is regenerated), leading to loss of liver function. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease. Some inherited diseases that can cause cirrhosis include Wilson’s disease (which causes an accumulation of copper in the body), alpha-1 antitrypsin deficiency (a genetic disorder caused by defective production of a particular enzyme), and glycogen storage diseases (a group of disorders that cause abnormal amounts of glycogen to be stored in the liver).
[18] What is the name of vessel that delivers the nutrient rich blood from the stomach and small intestine to the liver?
A.
left hepatic artery
B.
Hepatic vein
C.
Right hepatic artery
D.
Hepatic portal vein
Ans:
Hepatic portal vein
Explanation :
The portal vein or hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver. This blood contains nutrients and toxins extracted from digested contents.
[19] 'Ringworm' is a disease caused by -
A.
Fungi
B.
Bacteria
C.
Virus
D.
Flies
Ans:
Fungi
Explanation :
Dermatophytosis or ringworm is a clinical condition caused by fungal infection of the skin in humans, pets such as cats, and domesticated animals such as sheep and cattle. The term “ringworm” is a misnomer, since the condition is caused by fungi of several different species and not by parasitic worms. The fungi that cause parasitic infection (dermatophytes) feed on keratin, the material found in the outer layer of skin, hair, and nails. These fungi thrive on skin that is warm and moist, but may also survive directly on the outsides of hair shafts or in their interiors. In pets, the fungus responsible for the disease survives in skin and on the outer surface of hairs.
[20] Which one of the following diseases is caused by virus?
A.
Tuberculosis
B.
Typhoid
C.
Influenza
D.
Diphtheria
Ans:
Influenza
Explanation :
Influenza, commonly known as the flu, is an infectious disease caused by an influenza virus. Symptoms can be mild to severe.
[21] In which of the following groups, animals bear no teeth?
A.
Peacock, Ostrich, Tortoise
B.
Owl, Loris, Crow
C.
Alligator, Turtle Tortoise
D.
Turtle, Kiwi, Cow
Ans:
Peacock, Ostrich, Tortoise
Explanation :
The sloth, which is not a bear, has no front teeth. Other mammals are the armadillo and anteater (Order Xenarthra) and baleen whales. Among reptiles the turtles and tortoise. Among amphibians most toads are toothless. Modern birds have a toothless beak or bill. Peacock do not have teeth. Within the fish, all the Cyprinids, some catfish, paddelfish.
[22] Red rot is a disease caused to which of the following plant?
A.
Paddy
B.
Sugarcane
C.
Mustard
D.
Wheat
Ans:
Sugarcane
Explanation :
Red rot is one of the oldest known diseases of sugarcane that is caused by the fungus Colletotrichum falcatum (Glomerella tucumanensis).
[23] Enzymes are absent in -
A.
fungi
B.
bacteria
C.
viruses
D.
algae
Ans:
viruses
Explanation :
Enzymes are absent in viruses because they are unable to transmit their nucleic acid from one host cell to another.
[24] Olive Ridley is a famous -
A.
cricketer
B.
turtle species
C.
grass type vegetation
D.
Another name for olive tree
Ans:
turtle species
Explanation :
The Olive Ridley is considered the most abundant sea turtle in the world, with an estimated 800,000 nesting females annually. The Olive Ridley gets its name from the olive coloration of its heart-shaped top shell (carapace). The Olive Ridley has one of the most extraordinary nesting habits in the natural world. Large groups of turtles gather off shore of nesting beaches. Then, all at once, vast numbers of turtles come ashore and nest in what is known as an "arribada". During these arribadas, hundreds to thousands of females come ashore to lay their eggs.
[25] The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of -
A.
45-50 decibels
B.
200-250 decibels
C.
5-10 decibels
D.
2000-2500 decibels
Ans:
5-10 decibels
Explanation :
Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In humans the audible range of frequencies is usually said to be 20 Hz (cycles per second) to 20 kHz (20,000 Hz), although there is considerable variation between individuals, especially at the high frequency end, where a gradual decline with age is considered normal. Specifically, humans have a maximum aural range that begins as low as 12 Hz under ideal laboratory conditions, to 20 kHz in most children and some adults, but the range shrinks during life, usually beginning at around the age of 8 with the higher frequencies fading. Inaudible sound waves can be detected (felt) by humans through physical body vibration in the range of 4 to 16 Hz.
Explanation :
Incineration is a disposal method in which solid organic wastes are subjected to combustion so as to convert them into residue and gaseous products. This method is useful for disposal of both municipal solid waste and solid residue from waste water treatment.
[10] Transpiration is mainly effective during .
A.
Day
B.
Early evening
C.
Just after sunset
D.
Night
Ans:
Night
Explanation :
While the effect of root pressure in transport of water is more important at night, Transpiration is important during the day when the stomata are open. Thus, transpiration pull becomes the major driving force in the movement of water in the xylem during daytime.
[11] The smallest flowering plant is -
A.
Wolffia
B.
Lemma
C.
Azolla
D.
Ficus
Ans:
Wolffia
Explanation :
Wolffia is a genus of 9 to 11 species which include the smallest flowering plants on Earth. Commonly called watermeal or duckweed, these aquatic plants resemble specks of cornmeal floating on the water. Wolffia species are free-floating thalli, green or yellow-green, and without roots. The flower is produced in a depression on the top surface of the plant body. It has one stamen and one pistil. Individuals often float together in pairs or form floating mats with related plants, such as Lemna and Spirodela species.
[12] Which amongst the following is the largest mammal?
A.
Elephant
B.
Whale
C.
Dinosaur
D.
Rhinoceros
Ans:
Whale
Explanation :
Blue whales are the largest animals ever known to have lived on Earth. These magnificent marine mammals rule the oceans at up to 100 feet (30 meters) long and upwards of 200 tons (181 metric tons). Their tongues alone can weigh as much as an elephant, their hearts, as much as an automobile. Blue whales reach these mind-boggling dimensions on a diet composed nearly exclusively of tiny shrimplike animals called krill. During certain times of the year, a single adult blue whale consumes about 4 tons (3.6 metric tons) of krill a day.
[13] Which part becomes modified as the tusk of elephant?
A.
Canine
B.
Premolar
C.
Second incisor
D.
Molar
Ans:
Second incisor
Explanation :
Tusks are elongated, continuously growing front teeth, usually but not always in pairs, that protrude well beyond the mouth of certain mammal species. They are most commonly canines, as with warthogs, pig, and walruses, or, in the case of elephants, elongated incisors. In most tusked species both the males and the females have tusks although the males' are larger.
[14] One of these vitamins is called erythrocyte maturation factor -
A.
A
B.
C
C.
K
D.
B-12
Ans:
B-12
Explanation :
Vitamin B12, also called cobalamin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system and for the formation of blood. Hence, it is also known as erythrocyte maturation factor.
[15] Which among the following is not a connective tissue?
A.
Blood
B.
Bone
C.
Skin
D.
Cartilage
Ans:
Skin
Explanation :
Skin is composed of epithelial cells, and is therefore not an example of connective tissue. The major types of connective tissue include bone, adipose, blood, and cartilage. Connective tissue is responsible for binding and support of other tissue.
[16] Deep fried food materials are carcinogenic because they are rich in -
A.
Fats
B.
Hydrocarbons
C.
Cooking oil
D.
Nicotine
Ans:
Hydrocarbons
Explanation :
If foods are overheated or burnt, a group of carcinogenic substances called polycyclic aromatic hydrocarbons (PAHs) are produced. PAHs represent a very large group of compounds. Chemically, they consist of fused aromatic rings made up of carbon and hydrogen atoms. After being ingested, PAHs can be absorbed in the intestine and distributed to other organs through blood circulation.
[17] The toxicity of which of the following heavy metals leads to liver cirrhosis?
A.
Copper
B.
Lead
C.
Mercury
D.
Zinc
Ans:
Copper
Explanation :
Cirrhosis is a consequence of chronic liver disease characterized by replacement of liver tissue by fibrosis, scar tissue and regenerative nodules (lumps that occur as a result of a process in which damaged tissue is regenerated), leading to loss of liver function. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease. Some inherited diseases that can cause cirrhosis include Wilson’s disease (which causes an accumulation of copper in the body), alpha-1 antitrypsin deficiency (a genetic disorder caused by defective production of a particular enzyme), and glycogen storage diseases (a group of disorders that cause abnormal amounts of glycogen to be stored in the liver).
[18] What is the name of vessel that delivers the nutrient rich blood from the stomach and small intestine to the liver?
A.
left hepatic artery
B.
Hepatic vein
C.
Right hepatic artery
D.
Hepatic portal vein
Ans:
Hepatic portal vein
Explanation :
The portal vein or hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver. This blood contains nutrients and toxins extracted from digested contents.
[19] 'Ringworm' is a disease caused by -
A.
Fungi
B.
Bacteria
C.
Virus
D.
Flies
Ans:
Fungi
Explanation :
Dermatophytosis or ringworm is a clinical condition caused by fungal infection of the skin in humans, pets such as cats, and domesticated animals such as sheep and cattle. The term “ringworm” is a misnomer, since the condition is caused by fungi of several different species and not by parasitic worms. The fungi that cause parasitic infection (dermatophytes) feed on keratin, the material found in the outer layer of skin, hair, and nails. These fungi thrive on skin that is warm and moist, but may also survive directly on the outsides of hair shafts or in their interiors. In pets, the fungus responsible for the disease survives in skin and on the outer surface of hairs.
[20] Which one of the following diseases is caused by virus?
A.
Tuberculosis
B.
Typhoid
C.
Influenza
D.
Diphtheria
Ans:
Influenza
Explanation :
Influenza, commonly known as the flu, is an infectious disease caused by an influenza virus. Symptoms can be mild to severe.
[21] In which of the following groups, animals bear no teeth?
A.
Peacock, Ostrich, Tortoise
B.
Owl, Loris, Crow
C.
Alligator, Turtle Tortoise
D.
Turtle, Kiwi, Cow
Ans:
Peacock, Ostrich, Tortoise
Explanation :
The sloth, which is not a bear, has no front teeth. Other mammals are the armadillo and anteater (Order Xenarthra) and baleen whales. Among reptiles the turtles and tortoise. Among amphibians most toads are toothless. Modern birds have a toothless beak or bill. Peacock do not have teeth. Within the fish, all the Cyprinids, some catfish, paddelfish.
[22] Red rot is a disease caused to which of the following plant?
A.
Paddy
B.
Sugarcane
C.
Mustard
D.
Wheat
Ans:
Sugarcane
Explanation :
Red rot is one of the oldest known diseases of sugarcane that is caused by the fungus Colletotrichum falcatum (Glomerella tucumanensis).
[23] Enzymes are absent in -
A.
fungi
B.
bacteria
C.
viruses
D.
algae
Ans:
viruses
Explanation :
Enzymes are absent in viruses because they are unable to transmit their nucleic acid from one host cell to another.
[24] Olive Ridley is a famous -
A.
cricketer
B.
turtle species
C.
grass type vegetation
D.
Another name for olive tree
Ans:
turtle species
Explanation :
The Olive Ridley is considered the most abundant sea turtle in the world, with an estimated 800,000 nesting females annually. The Olive Ridley gets its name from the olive coloration of its heart-shaped top shell (carapace). The Olive Ridley has one of the most extraordinary nesting habits in the natural world. Large groups of turtles gather off shore of nesting beaches. Then, all at once, vast numbers of turtles come ashore and nest in what is known as an "arribada". During these arribadas, hundreds to thousands of females come ashore to lay their eggs.
[25] The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of -
A.
45-50 decibels
B.
200-250 decibels
C.
5-10 decibels
D.
2000-2500 decibels
Ans:
5-10 decibels
Explanation :
Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In humans the audible range of frequencies is usually said to be 20 Hz (cycles per second) to 20 kHz (20,000 Hz), although there is considerable variation between individuals, especially at the high frequency end, where a gradual decline with age is considered normal. Specifically, humans have a maximum aural range that begins as low as 12 Hz under ideal laboratory conditions, to 20 kHz in most children and some adults, but the range shrinks during life, usually beginning at around the age of 8 with the higher frequencies fading. Inaudible sound waves can be detected (felt) by humans through physical body vibration in the range of 4 to 16 Hz.
Explanation :
Wolffia is a genus of 9 to 11 species which include the smallest flowering plants on Earth. Commonly called watermeal or duckweed, these aquatic plants resemble specks of cornmeal floating on the water. Wolffia species are free-floating thalli, green or yellow-green, and without roots. The flower is produced in a depression on the top surface of the plant body. It has one stamen and one pistil. Individuals often float together in pairs or form floating mats with related plants, such as Lemna and Spirodela species.
[12] Which amongst the following is the largest mammal?
A.
Elephant
B.
Whale
C.
Dinosaur
D.
Rhinoceros
Ans:
Whale
Explanation :
Blue whales are the largest animals ever known to have lived on Earth. These magnificent marine mammals rule the oceans at up to 100 feet (30 meters) long and upwards of 200 tons (181 metric tons). Their tongues alone can weigh as much as an elephant, their hearts, as much as an automobile. Blue whales reach these mind-boggling dimensions on a diet composed nearly exclusively of tiny shrimplike animals called krill. During certain times of the year, a single adult blue whale consumes about 4 tons (3.6 metric tons) of krill a day.
[13] Which part becomes modified as the tusk of elephant?
A.
Canine
B.
Premolar
C.
Second incisor
D.
Molar
Ans:
Second incisor
Explanation :
Tusks are elongated, continuously growing front teeth, usually but not always in pairs, that protrude well beyond the mouth of certain mammal species. They are most commonly canines, as with warthogs, pig, and walruses, or, in the case of elephants, elongated incisors. In most tusked species both the males and the females have tusks although the males' are larger.
[14] One of these vitamins is called erythrocyte maturation factor -
A.
A
B.
C
C.
K
D.
B-12
Ans:
B-12
Explanation :
Vitamin B12, also called cobalamin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system and for the formation of blood. Hence, it is also known as erythrocyte maturation factor.
[15] Which among the following is not a connective tissue?
A.
Blood
B.
Bone
C.
Skin
D.
Cartilage
Ans:
Skin
Explanation :
Skin is composed of epithelial cells, and is therefore not an example of connective tissue. The major types of connective tissue include bone, adipose, blood, and cartilage. Connective tissue is responsible for binding and support of other tissue.
[16] Deep fried food materials are carcinogenic because they are rich in -
A.
Fats
B.
Hydrocarbons
C.
Cooking oil
D.
Nicotine
Ans:
Hydrocarbons
Explanation :
If foods are overheated or burnt, a group of carcinogenic substances called polycyclic aromatic hydrocarbons (PAHs) are produced. PAHs represent a very large group of compounds. Chemically, they consist of fused aromatic rings made up of carbon and hydrogen atoms. After being ingested, PAHs can be absorbed in the intestine and distributed to other organs through blood circulation.
[17] The toxicity of which of the following heavy metals leads to liver cirrhosis?
A.
Copper
B.
Lead
C.
Mercury
D.
Zinc
Ans:
Copper
Explanation :
Cirrhosis is a consequence of chronic liver disease characterized by replacement of liver tissue by fibrosis, scar tissue and regenerative nodules (lumps that occur as a result of a process in which damaged tissue is regenerated), leading to loss of liver function. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease. Some inherited diseases that can cause cirrhosis include Wilson’s disease (which causes an accumulation of copper in the body), alpha-1 antitrypsin deficiency (a genetic disorder caused by defective production of a particular enzyme), and glycogen storage diseases (a group of disorders that cause abnormal amounts of glycogen to be stored in the liver).
[18] What is the name of vessel that delivers the nutrient rich blood from the stomach and small intestine to the liver?
A.
left hepatic artery
B.
Hepatic vein
C.
Right hepatic artery
D.
Hepatic portal vein
Ans:
Hepatic portal vein
Explanation :
The portal vein or hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver. This blood contains nutrients and toxins extracted from digested contents.
[19] 'Ringworm' is a disease caused by -
A.
Fungi
B.
Bacteria
C.
Virus
D.
Flies
Ans:
Fungi
Explanation :
Dermatophytosis or ringworm is a clinical condition caused by fungal infection of the skin in humans, pets such as cats, and domesticated animals such as sheep and cattle. The term “ringworm” is a misnomer, since the condition is caused by fungi of several different species and not by parasitic worms. The fungi that cause parasitic infection (dermatophytes) feed on keratin, the material found in the outer layer of skin, hair, and nails. These fungi thrive on skin that is warm and moist, but may also survive directly on the outsides of hair shafts or in their interiors. In pets, the fungus responsible for the disease survives in skin and on the outer surface of hairs.
[20] Which one of the following diseases is caused by virus?
A.
Tuberculosis
B.
Typhoid
C.
Influenza
D.
Diphtheria
Ans:
Influenza
Explanation :
Influenza, commonly known as the flu, is an infectious disease caused by an influenza virus. Symptoms can be mild to severe.
[21] In which of the following groups, animals bear no teeth?
A.
Peacock, Ostrich, Tortoise
B.
Owl, Loris, Crow
C.
Alligator, Turtle Tortoise
D.
Turtle, Kiwi, Cow
Ans:
Peacock, Ostrich, Tortoise
Explanation :
The sloth, which is not a bear, has no front teeth. Other mammals are the armadillo and anteater (Order Xenarthra) and baleen whales. Among reptiles the turtles and tortoise. Among amphibians most toads are toothless. Modern birds have a toothless beak or bill. Peacock do not have teeth. Within the fish, all the Cyprinids, some catfish, paddelfish.
[22] Red rot is a disease caused to which of the following plant?
A.
Paddy
B.
Sugarcane
C.
Mustard
D.
Wheat
Ans:
Sugarcane
Explanation :
Red rot is one of the oldest known diseases of sugarcane that is caused by the fungus Colletotrichum falcatum (Glomerella tucumanensis).
[23] Enzymes are absent in -
A.
fungi
B.
bacteria
C.
viruses
D.
algae
Ans:
viruses
Explanation :
Enzymes are absent in viruses because they are unable to transmit their nucleic acid from one host cell to another.
[24] Olive Ridley is a famous -
A.
cricketer
B.
turtle species
C.
grass type vegetation
D.
Another name for olive tree
Ans:
turtle species
Explanation :
The Olive Ridley is considered the most abundant sea turtle in the world, with an estimated 800,000 nesting females annually. The Olive Ridley gets its name from the olive coloration of its heart-shaped top shell (carapace). The Olive Ridley has one of the most extraordinary nesting habits in the natural world. Large groups of turtles gather off shore of nesting beaches. Then, all at once, vast numbers of turtles come ashore and nest in what is known as an "arribada". During these arribadas, hundreds to thousands of females come ashore to lay their eggs.
[25] The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of -
A.
45-50 decibels
B.
200-250 decibels
C.
5-10 decibels
D.
2000-2500 decibels
Ans:
5-10 decibels
Explanation :
Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In humans the audible range of frequencies is usually said to be 20 Hz (cycles per second) to 20 kHz (20,000 Hz), although there is considerable variation between individuals, especially at the high frequency end, where a gradual decline with age is considered normal. Specifically, humans have a maximum aural range that begins as low as 12 Hz under ideal laboratory conditions, to 20 kHz in most children and some adults, but the range shrinks during life, usually beginning at around the age of 8 with the higher frequencies fading. Inaudible sound waves can be detected (felt) by humans through physical body vibration in the range of 4 to 16 Hz.
Explanation :
Tusks are elongated, continuously growing front teeth, usually but not always in pairs, that protrude well beyond the mouth of certain mammal species. They are most commonly canines, as with warthogs, pig, and walruses, or, in the case of elephants, elongated incisors. In most tusked species both the males and the females have tusks although the males' are larger.
[14] One of these vitamins is called erythrocyte maturation factor -
A.
A
B.
C
C.
K
D.
B-12
Ans:
B-12
Explanation :
Vitamin B12, also called cobalamin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system and for the formation of blood. Hence, it is also known as erythrocyte maturation factor.
[15] Which among the following is not a connective tissue?
A.
Blood
B.
Bone
C.
Skin
D.
Cartilage
Ans:
Skin
Explanation :
Skin is composed of epithelial cells, and is therefore not an example of connective tissue. The major types of connective tissue include bone, adipose, blood, and cartilage. Connective tissue is responsible for binding and support of other tissue.
[16] Deep fried food materials are carcinogenic because they are rich in -
A.
Fats
B.
Hydrocarbons
C.
Cooking oil
D.
Nicotine
Ans:
Hydrocarbons
Explanation :
If foods are overheated or burnt, a group of carcinogenic substances called polycyclic aromatic hydrocarbons (PAHs) are produced. PAHs represent a very large group of compounds. Chemically, they consist of fused aromatic rings made up of carbon and hydrogen atoms. After being ingested, PAHs can be absorbed in the intestine and distributed to other organs through blood circulation.
[17] The toxicity of which of the following heavy metals leads to liver cirrhosis?
A.
Copper
B.
Lead
C.
Mercury
D.
Zinc
Ans:
Copper
Explanation :
Cirrhosis is a consequence of chronic liver disease characterized by replacement of liver tissue by fibrosis, scar tissue and regenerative nodules (lumps that occur as a result of a process in which damaged tissue is regenerated), leading to loss of liver function. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease. Some inherited diseases that can cause cirrhosis include Wilson’s disease (which causes an accumulation of copper in the body), alpha-1 antitrypsin deficiency (a genetic disorder caused by defective production of a particular enzyme), and glycogen storage diseases (a group of disorders that cause abnormal amounts of glycogen to be stored in the liver).
[18] What is the name of vessel that delivers the nutrient rich blood from the stomach and small intestine to the liver?
A.
left hepatic artery
B.
Hepatic vein
C.
Right hepatic artery
D.
Hepatic portal vein
Ans:
Hepatic portal vein
Explanation :
The portal vein or hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver. This blood contains nutrients and toxins extracted from digested contents.
[19] 'Ringworm' is a disease caused by -
A.
Fungi
B.
Bacteria
C.
Virus
D.
Flies
Ans:
Fungi
Explanation :
Dermatophytosis or ringworm is a clinical condition caused by fungal infection of the skin in humans, pets such as cats, and domesticated animals such as sheep and cattle. The term “ringworm” is a misnomer, since the condition is caused by fungi of several different species and not by parasitic worms. The fungi that cause parasitic infection (dermatophytes) feed on keratin, the material found in the outer layer of skin, hair, and nails. These fungi thrive on skin that is warm and moist, but may also survive directly on the outsides of hair shafts or in their interiors. In pets, the fungus responsible for the disease survives in skin and on the outer surface of hairs.
[20] Which one of the following diseases is caused by virus?
A.
Tuberculosis
B.
Typhoid
C.
Influenza
D.
Diphtheria
Ans:
Influenza
Explanation :
Influenza, commonly known as the flu, is an infectious disease caused by an influenza virus. Symptoms can be mild to severe.
[21] In which of the following groups, animals bear no teeth?
A.
Peacock, Ostrich, Tortoise
B.
Owl, Loris, Crow
C.
Alligator, Turtle Tortoise
D.
Turtle, Kiwi, Cow
Ans:
Peacock, Ostrich, Tortoise
Explanation :
The sloth, which is not a bear, has no front teeth. Other mammals are the armadillo and anteater (Order Xenarthra) and baleen whales. Among reptiles the turtles and tortoise. Among amphibians most toads are toothless. Modern birds have a toothless beak or bill. Peacock do not have teeth. Within the fish, all the Cyprinids, some catfish, paddelfish.
[22] Red rot is a disease caused to which of the following plant?
A.
Paddy
B.
Sugarcane
C.
Mustard
D.
Wheat
Ans:
Sugarcane
Explanation :
Red rot is one of the oldest known diseases of sugarcane that is caused by the fungus Colletotrichum falcatum (Glomerella tucumanensis).
[23] Enzymes are absent in -
A.
fungi
B.
bacteria
C.
viruses
D.
algae
Ans:
viruses
Explanation :
Enzymes are absent in viruses because they are unable to transmit their nucleic acid from one host cell to another.
[24] Olive Ridley is a famous -
A.
cricketer
B.
turtle species
C.
grass type vegetation
D.
Another name for olive tree
Ans:
turtle species
Explanation :
The Olive Ridley is considered the most abundant sea turtle in the world, with an estimated 800,000 nesting females annually. The Olive Ridley gets its name from the olive coloration of its heart-shaped top shell (carapace). The Olive Ridley has one of the most extraordinary nesting habits in the natural world. Large groups of turtles gather off shore of nesting beaches. Then, all at once, vast numbers of turtles come ashore and nest in what is known as an "arribada". During these arribadas, hundreds to thousands of females come ashore to lay their eggs.
[25] The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of -
A.
45-50 decibels
B.
200-250 decibels
C.
5-10 decibels
D.
2000-2500 decibels
Ans:
5-10 decibels
Explanation :
Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In humans the audible range of frequencies is usually said to be 20 Hz (cycles per second) to 20 kHz (20,000 Hz), although there is considerable variation between individuals, especially at the high frequency end, where a gradual decline with age is considered normal. Specifically, humans have a maximum aural range that begins as low as 12 Hz under ideal laboratory conditions, to 20 kHz in most children and some adults, but the range shrinks during life, usually beginning at around the age of 8 with the higher frequencies fading. Inaudible sound waves can be detected (felt) by humans through physical body vibration in the range of 4 to 16 Hz.
Explanation :
Skin is composed of epithelial cells, and is therefore not an example of connective tissue. The major types of connective tissue include bone, adipose, blood, and cartilage. Connective tissue is responsible for binding and support of other tissue.
[16] Deep fried food materials are carcinogenic because they are rich in -
A.
Fats
B.
Hydrocarbons
C.
Cooking oil
D.
Nicotine
Ans:
Hydrocarbons
Explanation :
If foods are overheated or burnt, a group of carcinogenic substances called polycyclic aromatic hydrocarbons (PAHs) are produced. PAHs represent a very large group of compounds. Chemically, they consist of fused aromatic rings made up of carbon and hydrogen atoms. After being ingested, PAHs can be absorbed in the intestine and distributed to other organs through blood circulation.
[17] The toxicity of which of the following heavy metals leads to liver cirrhosis?
A.
Copper
B.
Lead
C.
Mercury
D.
Zinc
Ans:
Copper
Explanation :
Cirrhosis is a consequence of chronic liver disease characterized by replacement of liver tissue by fibrosis, scar tissue and regenerative nodules (lumps that occur as a result of a process in which damaged tissue is regenerated), leading to loss of liver function. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease. Some inherited diseases that can cause cirrhosis include Wilson’s disease (which causes an accumulation of copper in the body), alpha-1 antitrypsin deficiency (a genetic disorder caused by defective production of a particular enzyme), and glycogen storage diseases (a group of disorders that cause abnormal amounts of glycogen to be stored in the liver).
[18] What is the name of vessel that delivers the nutrient rich blood from the stomach and small intestine to the liver?
A.
left hepatic artery
B.
Hepatic vein
C.
Right hepatic artery
D.
Hepatic portal vein
Ans:
Hepatic portal vein
Explanation :
The portal vein or hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver. This blood contains nutrients and toxins extracted from digested contents.
[19] 'Ringworm' is a disease caused by -
A.
Fungi
B.
Bacteria
C.
Virus
D.
Flies
Ans:
Fungi
Explanation :
Dermatophytosis or ringworm is a clinical condition caused by fungal infection of the skin in humans, pets such as cats, and domesticated animals such as sheep and cattle. The term “ringworm” is a misnomer, since the condition is caused by fungi of several different species and not by parasitic worms. The fungi that cause parasitic infection (dermatophytes) feed on keratin, the material found in the outer layer of skin, hair, and nails. These fungi thrive on skin that is warm and moist, but may also survive directly on the outsides of hair shafts or in their interiors. In pets, the fungus responsible for the disease survives in skin and on the outer surface of hairs.
[20] Which one of the following diseases is caused by virus?
A.
Tuberculosis
B.
Typhoid
C.
Influenza
D.
Diphtheria
Ans:
Influenza
Explanation :
Influenza, commonly known as the flu, is an infectious disease caused by an influenza virus. Symptoms can be mild to severe.
[21] In which of the following groups, animals bear no teeth?
A.
Peacock, Ostrich, Tortoise
B.
Owl, Loris, Crow
C.
Alligator, Turtle Tortoise
D.
Turtle, Kiwi, Cow
Ans:
Peacock, Ostrich, Tortoise
Explanation :
The sloth, which is not a bear, has no front teeth. Other mammals are the armadillo and anteater (Order Xenarthra) and baleen whales. Among reptiles the turtles and tortoise. Among amphibians most toads are toothless. Modern birds have a toothless beak or bill. Peacock do not have teeth. Within the fish, all the Cyprinids, some catfish, paddelfish.
[22] Red rot is a disease caused to which of the following plant?
A.
Paddy
B.
Sugarcane
C.
Mustard
D.
Wheat
Ans:
Sugarcane
Explanation :
Red rot is one of the oldest known diseases of sugarcane that is caused by the fungus Colletotrichum falcatum (Glomerella tucumanensis).
[23] Enzymes are absent in -
A.
fungi
B.
bacteria
C.
viruses
D.
algae
Ans:
viruses
Explanation :
Enzymes are absent in viruses because they are unable to transmit their nucleic acid from one host cell to another.
[24] Olive Ridley is a famous -
A.
cricketer
B.
turtle species
C.
grass type vegetation
D.
Another name for olive tree
Ans:
turtle species
Explanation :
The Olive Ridley is considered the most abundant sea turtle in the world, with an estimated 800,000 nesting females annually. The Olive Ridley gets its name from the olive coloration of its heart-shaped top shell (carapace). The Olive Ridley has one of the most extraordinary nesting habits in the natural world. Large groups of turtles gather off shore of nesting beaches. Then, all at once, vast numbers of turtles come ashore and nest in what is known as an "arribada". During these arribadas, hundreds to thousands of females come ashore to lay their eggs.
[25] The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of -
A.
45-50 decibels
B.
200-250 decibels
C.
5-10 decibels
D.
2000-2500 decibels
Ans:
5-10 decibels
Explanation :
Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In humans the audible range of frequencies is usually said to be 20 Hz (cycles per second) to 20 kHz (20,000 Hz), although there is considerable variation between individuals, especially at the high frequency end, where a gradual decline with age is considered normal. Specifically, humans have a maximum aural range that begins as low as 12 Hz under ideal laboratory conditions, to 20 kHz in most children and some adults, but the range shrinks during life, usually beginning at around the age of 8 with the higher frequencies fading. Inaudible sound waves can be detected (felt) by humans through physical body vibration in the range of 4 to 16 Hz.
Explanation :
Cirrhosis is a consequence of chronic liver disease characterized by replacement of liver tissue by fibrosis, scar tissue and regenerative nodules (lumps that occur as a result of a process in which damaged tissue is regenerated), leading to loss of liver function. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease. Some inherited diseases that can cause cirrhosis include Wilson’s disease (which causes an accumulation of copper in the body), alpha-1 antitrypsin deficiency (a genetic disorder caused by defective production of a particular enzyme), and glycogen storage diseases (a group of disorders that cause abnormal amounts of glycogen to be stored in the liver).
[18] What is the name of vessel that delivers the nutrient rich blood from the stomach and small intestine to the liver?
A.
left hepatic artery
B.
Hepatic vein
C.
Right hepatic artery
D.
Hepatic portal vein
Ans:
Hepatic portal vein
Explanation :
The portal vein or hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver. This blood contains nutrients and toxins extracted from digested contents.
[19] 'Ringworm' is a disease caused by -
A.
Fungi
B.
Bacteria
C.
Virus
D.
Flies
Ans:
Fungi
Explanation :
Dermatophytosis or ringworm is a clinical condition caused by fungal infection of the skin in humans, pets such as cats, and domesticated animals such as sheep and cattle. The term “ringworm” is a misnomer, since the condition is caused by fungi of several different species and not by parasitic worms. The fungi that cause parasitic infection (dermatophytes) feed on keratin, the material found in the outer layer of skin, hair, and nails. These fungi thrive on skin that is warm and moist, but may also survive directly on the outsides of hair shafts or in their interiors. In pets, the fungus responsible for the disease survives in skin and on the outer surface of hairs.
[20] Which one of the following diseases is caused by virus?
A.
Tuberculosis
B.
Typhoid
C.
Influenza
D.
Diphtheria
Ans:
Influenza
Explanation :
Influenza, commonly known as the flu, is an infectious disease caused by an influenza virus. Symptoms can be mild to severe.
[21] In which of the following groups, animals bear no teeth?
A.
Peacock, Ostrich, Tortoise
B.
Owl, Loris, Crow
C.
Alligator, Turtle Tortoise
D.
Turtle, Kiwi, Cow
Ans:
Peacock, Ostrich, Tortoise
Explanation :
The sloth, which is not a bear, has no front teeth. Other mammals are the armadillo and anteater (Order Xenarthra) and baleen whales. Among reptiles the turtles and tortoise. Among amphibians most toads are toothless. Modern birds have a toothless beak or bill. Peacock do not have teeth. Within the fish, all the Cyprinids, some catfish, paddelfish.
[22] Red rot is a disease caused to which of the following plant?
A.
Paddy
B.
Sugarcane
C.
Mustard
D.
Wheat
Ans:
Sugarcane
Explanation :
Red rot is one of the oldest known diseases of sugarcane that is caused by the fungus Colletotrichum falcatum (Glomerella tucumanensis).
[23] Enzymes are absent in -
A.
fungi
B.
bacteria
C.
viruses
D.
algae
Ans:
viruses
Explanation :
Enzymes are absent in viruses because they are unable to transmit their nucleic acid from one host cell to another.
[24] Olive Ridley is a famous -
A.
cricketer
B.
turtle species
C.
grass type vegetation
D.
Another name for olive tree
Ans:
turtle species
Explanation :
The Olive Ridley is considered the most abundant sea turtle in the world, with an estimated 800,000 nesting females annually. The Olive Ridley gets its name from the olive coloration of its heart-shaped top shell (carapace). The Olive Ridley has one of the most extraordinary nesting habits in the natural world. Large groups of turtles gather off shore of nesting beaches. Then, all at once, vast numbers of turtles come ashore and nest in what is known as an "arribada". During these arribadas, hundreds to thousands of females come ashore to lay their eggs.
[25] The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of -
A.
45-50 decibels
B.
200-250 decibels
C.
5-10 decibels
D.
2000-2500 decibels
Ans:
5-10 decibels
Explanation :
Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In humans the audible range of frequencies is usually said to be 20 Hz (cycles per second) to 20 kHz (20,000 Hz), although there is considerable variation between individuals, especially at the high frequency end, where a gradual decline with age is considered normal. Specifically, humans have a maximum aural range that begins as low as 12 Hz under ideal laboratory conditions, to 20 kHz in most children and some adults, but the range shrinks during life, usually beginning at around the age of 8 with the higher frequencies fading. Inaudible sound waves can be detected (felt) by humans through physical body vibration in the range of 4 to 16 Hz.
Explanation :
Dermatophytosis or ringworm is a clinical condition caused by fungal infection of the skin in humans, pets such as cats, and domesticated animals such as sheep and cattle. The term “ringworm” is a misnomer, since the condition is caused by fungi of several different species and not by parasitic worms. The fungi that cause parasitic infection (dermatophytes) feed on keratin, the material found in the outer layer of skin, hair, and nails. These fungi thrive on skin that is warm and moist, but may also survive directly on the outsides of hair shafts or in their interiors. In pets, the fungus responsible for the disease survives in skin and on the outer surface of hairs.
[20] Which one of the following diseases is caused by virus?
A.
Tuberculosis
B.
Typhoid
C.
Influenza
D.
Diphtheria
Ans:
Influenza
Explanation :
Influenza, commonly known as the flu, is an infectious disease caused by an influenza virus. Symptoms can be mild to severe.
[21] In which of the following groups, animals bear no teeth?
A.
Peacock, Ostrich, Tortoise
B.
Owl, Loris, Crow
C.
Alligator, Turtle Tortoise
D.
Turtle, Kiwi, Cow
Ans:
Peacock, Ostrich, Tortoise
Explanation :
The sloth, which is not a bear, has no front teeth. Other mammals are the armadillo and anteater (Order Xenarthra) and baleen whales. Among reptiles the turtles and tortoise. Among amphibians most toads are toothless. Modern birds have a toothless beak or bill. Peacock do not have teeth. Within the fish, all the Cyprinids, some catfish, paddelfish.
[22] Red rot is a disease caused to which of the following plant?
A.
Paddy
B.
Sugarcane
C.
Mustard
D.
Wheat
Ans:
Sugarcane
Explanation :
Red rot is one of the oldest known diseases of sugarcane that is caused by the fungus Colletotrichum falcatum (Glomerella tucumanensis).
[23] Enzymes are absent in -
A.
fungi
B.
bacteria
C.
viruses
D.
algae
Ans:
viruses
Explanation :
Enzymes are absent in viruses because they are unable to transmit their nucleic acid from one host cell to another.
[24] Olive Ridley is a famous -
A.
cricketer
B.
turtle species
C.
grass type vegetation
D.
Another name for olive tree
Ans:
turtle species
Explanation :
The Olive Ridley is considered the most abundant sea turtle in the world, with an estimated 800,000 nesting females annually. The Olive Ridley gets its name from the olive coloration of its heart-shaped top shell (carapace). The Olive Ridley has one of the most extraordinary nesting habits in the natural world. Large groups of turtles gather off shore of nesting beaches. Then, all at once, vast numbers of turtles come ashore and nest in what is known as an "arribada". During these arribadas, hundreds to thousands of females come ashore to lay their eggs.
[25] The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of -
A.
45-50 decibels
B.
200-250 decibels
C.
5-10 decibels
D.
2000-2500 decibels
Ans:
5-10 decibels
Explanation :
Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In humans the audible range of frequencies is usually said to be 20 Hz (cycles per second) to 20 kHz (20,000 Hz), although there is considerable variation between individuals, especially at the high frequency end, where a gradual decline with age is considered normal. Specifically, humans have a maximum aural range that begins as low as 12 Hz under ideal laboratory conditions, to 20 kHz in most children and some adults, but the range shrinks during life, usually beginning at around the age of 8 with the higher frequencies fading. Inaudible sound waves can be detected (felt) by humans through physical body vibration in the range of 4 to 16 Hz.
Explanation :
The sloth, which is not a bear, has no front teeth. Other mammals are the armadillo and anteater (Order Xenarthra) and baleen whales. Among reptiles the turtles and tortoise. Among amphibians most toads are toothless. Modern birds have a toothless beak or bill. Peacock do not have teeth. Within the fish, all the Cyprinids, some catfish, paddelfish.
[22] Red rot is a disease caused to which of the following plant?
A.
Paddy
B.
Sugarcane
C.
Mustard
D.
Wheat
Ans:
Sugarcane
Explanation :
Red rot is one of the oldest known diseases of sugarcane that is caused by the fungus Colletotrichum falcatum (Glomerella tucumanensis).
[23] Enzymes are absent in -
A.
fungi
B.
bacteria
C.
viruses
D.
algae
Ans:
viruses
Explanation :
Enzymes are absent in viruses because they are unable to transmit their nucleic acid from one host cell to another.
[24] Olive Ridley is a famous -
A.
cricketer
B.
turtle species
C.
grass type vegetation
D.
Another name for olive tree
Ans:
turtle species
Explanation :
The Olive Ridley is considered the most abundant sea turtle in the world, with an estimated 800,000 nesting females annually. The Olive Ridley gets its name from the olive coloration of its heart-shaped top shell (carapace). The Olive Ridley has one of the most extraordinary nesting habits in the natural world. Large groups of turtles gather off shore of nesting beaches. Then, all at once, vast numbers of turtles come ashore and nest in what is known as an "arribada". During these arribadas, hundreds to thousands of females come ashore to lay their eggs.
[25] The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of -
A.
45-50 decibels
B.
200-250 decibels
C.
5-10 decibels
D.
2000-2500 decibels
Ans:
5-10 decibels
Explanation :
Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In humans the audible range of frequencies is usually said to be 20 Hz (cycles per second) to 20 kHz (20,000 Hz), although there is considerable variation between individuals, especially at the high frequency end, where a gradual decline with age is considered normal. Specifically, humans have a maximum aural range that begins as low as 12 Hz under ideal laboratory conditions, to 20 kHz in most children and some adults, but the range shrinks during life, usually beginning at around the age of 8 with the higher frequencies fading. Inaudible sound waves can be detected (felt) by humans through physical body vibration in the range of 4 to 16 Hz.
Explanation :
Enzymes are absent in viruses because they are unable to transmit their nucleic acid from one host cell to another.
[24] Olive Ridley is a famous -
A.
cricketer
B.
turtle species
C.
grass type vegetation
D.
Another name for olive tree
Ans:
turtle species
Explanation :
The Olive Ridley is considered the most abundant sea turtle in the world, with an estimated 800,000 nesting females annually. The Olive Ridley gets its name from the olive coloration of its heart-shaped top shell (carapace). The Olive Ridley has one of the most extraordinary nesting habits in the natural world. Large groups of turtles gather off shore of nesting beaches. Then, all at once, vast numbers of turtles come ashore and nest in what is known as an "arribada". During these arribadas, hundreds to thousands of females come ashore to lay their eggs.
[25] The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of -
A.
45-50 decibels
B.
200-250 decibels
C.
5-10 decibels
D.
2000-2500 decibels
Ans:
5-10 decibels
Explanation :
Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In humans the audible range of frequencies is usually said to be 20 Hz (cycles per second) to 20 kHz (20,000 Hz), although there is considerable variation between individuals, especially at the high frequency end, where a gradual decline with age is considered normal. Specifically, humans have a maximum aural range that begins as low as 12 Hz under ideal laboratory conditions, to 20 kHz in most children and some adults, but the range shrinks during life, usually beginning at around the age of 8 with the higher frequencies fading. Inaudible sound waves can be detected (felt) by humans through physical body vibration in the range of 4 to 16 Hz.
Explanation :
Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In humans the audible range of frequencies is usually said to be 20 Hz (cycles per second) to 20 kHz (20,000 Hz), although there is considerable variation between individuals, especially at the high frequency end, where a gradual decline with age is considered normal. Specifically, humans have a maximum aural range that begins as low as 12 Hz under ideal laboratory conditions, to 20 kHz in most children and some adults, but the range shrinks during life, usually beginning at around the age of 8 with the higher frequencies fading. Inaudible sound waves can be detected (felt) by humans through physical body vibration in the range of 4 to 16 Hz.