[1] The hormone used as an oral contraceptive is -
A.
Cortisone
B.
Progesterone
C.
Testosterone
D.
Aldesterone
Ans:
Progesterone
Explanation :
It was discovered relatively long ago (1930's) that injections of progesterone were effective as a contraceptive in preventing pregnancies. Progesterone is used as a Contraceptive for creating a hostile environment for fertilization and not allowing sperm to enter the egg.
[2] Transboundary pollution (or) Acid rain is caused by -
A.
Carbon monoxide
B.
Carbon dioxide
C.
Hydrocarbon
D.
Nitrogen oxide and sulphur dioxide
Ans:
Nitrogen oxide and sulphur dioxide
Explanation :
Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it possesses elevated levels of hydrogen ions (low pH). It is caused by emissions of sulfur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.
[3] At which stage in its life cycle, does the silk worm yield the fibre of commerce?
A.
Egg
B.
Larva
C.
Pupa
D.
Imago
Ans:
Pupa
Explanation :
The eggs hatch into worms in a few weeks, and then the cycle repeats itself. Silkworms go through four stages of developmen
[4] Which one of the following is responsible for blue baby syndrome?
A.
Fluoride
B.
Nitrate
C.
Arsenic
D.
Lead
Ans:
Nitrate
Explanation :
The most common cause of blue baby syndrome is water contaminated with nitrates. After a baby drinks formula made with nitrate-rich water, the body converts the nitrates into nitrites. These nitrites bind to the hemoglobin in the body, forming methemoglobin, which is unable to carry oxygen.
[5] Maximum harm to a tree is caused by -
A.
loss of half of its leaves
B.
loss of all leaves
C.
loss of half of its branches
D.
loss of its bark
Ans:
loss of all leaves
Explanation :
Loss of all leaves lead to maximum harm as the tree loses its ability to perform photosynthesis so necessary for food manufacturing. Besides, loss of its bark will also be dangerous as it is the only part of a tree that is really alive. There is thin layer of cells right under the bark. If the bark is gone that layer dries out and dies.
[6] The humidity of air measured in percentage is called -
A.
absolute humidity
B.
specific humidity
C.
relative humidity
D.
all of these
Ans:
relative humidity
Explanation :
The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
[7] Which of the following is not an insectivorous plant?
A.
Nepenthes
B.
Utricularia
C.
Drosera
D.
Cuscuta
Ans:
Cuscuta
Explanation :
Insectivorous plants are : Aldrovanda, Archaeamphora, Brocchinia, Byblis, Catopsis, Dionaea, Drosera, Genlisea, Heliamphora, Nepenthes, Palaeoaldrovanda, Philcoxia, Roridule, Sarracenia, Stylidium, Triphyophyllum, Utricularia etc.
[8] The term 'Green Revolution' was coined by -
A.
William Gaud
B.
Charles Elton
C.
Eugene Odum
D.
M.S. Swaminathan
Ans:
William Gaud
Explanation :
The term ‘Green Revolution’ was first used in 1968 by former United States Agency for International Development (USA1D) Director William Gaud.
[9] Filaria is transmitted by -
A.
Aedes mosquito
B.
Anopheles mosquito
C.
Cuiex mosquito
D.
Swamp mosquito
Ans:
Cuiex mosquito
Explanation :
Aedes mosquito causes dengue fever. Anopheles mosquito causes malaria. Culex mosquito causes filaria.
[10] Which is the only mammal that can fly?
A.
Whale
B.
Bat
C.
Hen
D.
Lizard
Ans:
Bat
Explanation :
But no other mammal can fly like a bat can. “Flying” squirrels and similar mammals can only glide at best.
[11] Plants which flower only once in their lifetime are known as -
A.
polyearpie
B.
monocarpie
C.
monogamous
D.
monogeneric
Ans:
monocarpie
Explanation :
Plants that flower and fruit only once and then die are termed monocarpic or semelparous.
[12] The larvae of cockroach is called -
A.
Caterpillar
B.
Nymph
C.
Maggot
D.
Grub
Ans:
Nymph
Explanation :
The life cycle of cockroaches begins with the egg. Cockroach eggs hatch because of the combined pressure of the hatchlings within. Upon emerging from the egg case, or ootheca, this immature form of cockroach is known as a nymph or baby cockroach. Nymphs are bright white in color initially.
[13] The Drone in honey-bee are -
A.
Fertile male
B.
Fertile female
C.
Sterile male
D.
Sterile female
Ans:
Fertile male
Explanation :
Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ).
[14] Of which tissue nails, hoofs and horns are made of -
A.
Cuticle
B.
Chitin
C.
Keratin
D.
Tunicin
Ans:
Keratin
Explanation :
Keratin is a fibrous protein making up most cells found in our nails and hair and the epidermis layer of our skin. It also makes up fish scales and crustacean shells, bird feathers and beaks, and animal horns and hooves.
[15] Which one of the following vitamins helps in clotting of blood?
A.
Vitamin-A
B.
Vitamin-B
C.
Vitamin-D
D.
Vitamin-K
Ans:
Vitamin-K
Explanation :
Vitamin K plays a key role in helping the blood clot, preventing excessive bleeding. Unlike many other vitamins, vitamin K is not typically used as a dietary supplement. Vitamin K is actually a group of compounds. The most important of these compounds appears to be vitamin K1 and vitamin K2.
[16] Vector of Kala Azar is :
A.
Anopheles mosquito
B.
Culex mosquito
C.
Tse-Tsefly
D.
Sand fly
Ans:
Sand fly
Explanation :
Leishmaniasis (Kala Azar) is a disease spread by the bite of the female sand fly. This disease is the second-largest parasitic killer in the world (after malaria). The parasite migrates to the internal organs such as liver, spleen (hence 'viscera), and bone marrow, and, if left untreated, will almost always result in the death of the host.
[17] Name the vitamin not found in any animal food?
A.
Vitamin B12
B.
Vitamin C
C.
Vitamin D
D.
Vitamin K
Ans:
Vitamin C
Explanation :
Vitamin C, also known as ascorbic acid, is a water-soluble vitamin. Unlike most mammals and other animals, humans do not have the ability to make their own vitamin C. Therefore, we must obtain vitamin C through our diet.
[18] The largest organ of human body is :
A.
Heart
B.
Brain
C.
Liver
D.
Kidney
Ans:
Liver
Explanation :
Technically, the largest organ 'in' the body is the liver. Liver is also the heaviest organ, with an average of 1.6 kilograms (3.5 pounds). The largest organ 'of the body is the skin (the skin is 'outside' the body).
[19] Fiber diet includes -
A.
glycogen
B.
proteins
C.
cellulose
D.
fats
Ans:
cellulose
Explanation :
The components of dietary fiber include cellulose, lignin (only non-carbohydrate component of dietary fiber), pectin, chitan, etc. Such fibers increase fecal bulk and speed up the passage of food through the digestive tract.
[20] Quinine, the commonly used drug to treat malaria, is obtained from a plant. What part of the plant yields the drug?
A.
Leaves
B.
Fruits
C.
Root
D.
Stem bark
Ans:
Stem bark
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
[21] To carry out photosynthesis plants require -
A.
Oxygen
B.
Carbon-dioxide
C.
Nitrogen
D.
Hydrogen
Ans:
Carbon-dioxide
Explanation :
In photosynthesis, carbon dioxide is converted into sugars in a process called carbon fixation. Carbon fixation is a redox reaction, so photosynthesis needs to supply both a source of energy to drive this process, and the electrons needed to convert carbon dioxide into a carbohydrate, which is a reduction reaction.
[22] The human heart is enclosed in the -
A.
Pericardium
B.
Pleura
C.
Duramater
D.
Conjunctive
Ans:
Pericardium
Explanation :
The pericardium is a double-walled sac containing the heart and the roots of the great vessels. It is a tough double layered membrane which covers the heart. The space between the two layers of it is filled with a pericardium fluid which protects the heart from any kind of external jerk or shock.
[23] Which of the following is an example of tissue?
A.
Brain
B.
Blood
C.
Liver
D.
Stomach
Ans:
Blood
Explanation :
Blood is considered a connective tissue for two basic reasons: (1) it has the same origin as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes. In circulating blood two different cell types are found: enucleated erythrocytes or red blood cells and nucleated leukocytes or white blood cells.
[24] The human skeleton contains around -
A.
110 bones
B.
210 bones
C.
150 bones
D.
206 bones
Ans:
206 bones
Explanation :
A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations
[25] Heavy alcohol consuming people generally die of -
A.
blood cancer
B.
cirrhosis
C.
liver or stomach cancer
D.
weakening of heart muscles leading to cardiac arrest
Ans:
cirrhosis
Explanation :
Cirrhosis is scarring of the liver and poor liver function. It is the final phase of chronic liver disease which may result from a history of excess drinking habits. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease.
Explanation :
It was discovered relatively long ago (1930's) that injections of progesterone were effective as a contraceptive in preventing pregnancies. Progesterone is used as a Contraceptive for creating a hostile environment for fertilization and not allowing sperm to enter the egg.
[2] Transboundary pollution (or) Acid rain is caused by -
A.
Carbon monoxide
B.
Carbon dioxide
C.
Hydrocarbon
D.
Nitrogen oxide and sulphur dioxide
Ans:
Nitrogen oxide and sulphur dioxide
Explanation :
Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it possesses elevated levels of hydrogen ions (low pH). It is caused by emissions of sulfur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.
[3] At which stage in its life cycle, does the silk worm yield the fibre of commerce?
A.
Egg
B.
Larva
C.
Pupa
D.
Imago
Ans:
Pupa
Explanation :
The eggs hatch into worms in a few weeks, and then the cycle repeats itself. Silkworms go through four stages of developmen
[4] Which one of the following is responsible for blue baby syndrome?
A.
Fluoride
B.
Nitrate
C.
Arsenic
D.
Lead
Ans:
Nitrate
Explanation :
The most common cause of blue baby syndrome is water contaminated with nitrates. After a baby drinks formula made with nitrate-rich water, the body converts the nitrates into nitrites. These nitrites bind to the hemoglobin in the body, forming methemoglobin, which is unable to carry oxygen.
[5] Maximum harm to a tree is caused by -
A.
loss of half of its leaves
B.
loss of all leaves
C.
loss of half of its branches
D.
loss of its bark
Ans:
loss of all leaves
Explanation :
Loss of all leaves lead to maximum harm as the tree loses its ability to perform photosynthesis so necessary for food manufacturing. Besides, loss of its bark will also be dangerous as it is the only part of a tree that is really alive. There is thin layer of cells right under the bark. If the bark is gone that layer dries out and dies.
[6] The humidity of air measured in percentage is called -
A.
absolute humidity
B.
specific humidity
C.
relative humidity
D.
all of these
Ans:
relative humidity
Explanation :
The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
[7] Which of the following is not an insectivorous plant?
A.
Nepenthes
B.
Utricularia
C.
Drosera
D.
Cuscuta
Ans:
Cuscuta
Explanation :
Insectivorous plants are : Aldrovanda, Archaeamphora, Brocchinia, Byblis, Catopsis, Dionaea, Drosera, Genlisea, Heliamphora, Nepenthes, Palaeoaldrovanda, Philcoxia, Roridule, Sarracenia, Stylidium, Triphyophyllum, Utricularia etc.
[8] The term 'Green Revolution' was coined by -
A.
William Gaud
B.
Charles Elton
C.
Eugene Odum
D.
M.S. Swaminathan
Ans:
William Gaud
Explanation :
The term ‘Green Revolution’ was first used in 1968 by former United States Agency for International Development (USA1D) Director William Gaud.
[9] Filaria is transmitted by -
A.
Aedes mosquito
B.
Anopheles mosquito
C.
Cuiex mosquito
D.
Swamp mosquito
Ans:
Cuiex mosquito
Explanation :
Aedes mosquito causes dengue fever. Anopheles mosquito causes malaria. Culex mosquito causes filaria.
[10] Which is the only mammal that can fly?
A.
Whale
B.
Bat
C.
Hen
D.
Lizard
Ans:
Bat
Explanation :
But no other mammal can fly like a bat can. “Flying” squirrels and similar mammals can only glide at best.
[11] Plants which flower only once in their lifetime are known as -
A.
polyearpie
B.
monocarpie
C.
monogamous
D.
monogeneric
Ans:
monocarpie
Explanation :
Plants that flower and fruit only once and then die are termed monocarpic or semelparous.
[12] The larvae of cockroach is called -
A.
Caterpillar
B.
Nymph
C.
Maggot
D.
Grub
Ans:
Nymph
Explanation :
The life cycle of cockroaches begins with the egg. Cockroach eggs hatch because of the combined pressure of the hatchlings within. Upon emerging from the egg case, or ootheca, this immature form of cockroach is known as a nymph or baby cockroach. Nymphs are bright white in color initially.
[13] The Drone in honey-bee are -
A.
Fertile male
B.
Fertile female
C.
Sterile male
D.
Sterile female
Ans:
Fertile male
Explanation :
Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ).
[14] Of which tissue nails, hoofs and horns are made of -
A.
Cuticle
B.
Chitin
C.
Keratin
D.
Tunicin
Ans:
Keratin
Explanation :
Keratin is a fibrous protein making up most cells found in our nails and hair and the epidermis layer of our skin. It also makes up fish scales and crustacean shells, bird feathers and beaks, and animal horns and hooves.
[15] Which one of the following vitamins helps in clotting of blood?
A.
Vitamin-A
B.
Vitamin-B
C.
Vitamin-D
D.
Vitamin-K
Ans:
Vitamin-K
Explanation :
Vitamin K plays a key role in helping the blood clot, preventing excessive bleeding. Unlike many other vitamins, vitamin K is not typically used as a dietary supplement. Vitamin K is actually a group of compounds. The most important of these compounds appears to be vitamin K1 and vitamin K2.
[16] Vector of Kala Azar is :
A.
Anopheles mosquito
B.
Culex mosquito
C.
Tse-Tsefly
D.
Sand fly
Ans:
Sand fly
Explanation :
Leishmaniasis (Kala Azar) is a disease spread by the bite of the female sand fly. This disease is the second-largest parasitic killer in the world (after malaria). The parasite migrates to the internal organs such as liver, spleen (hence 'viscera), and bone marrow, and, if left untreated, will almost always result in the death of the host.
[17] Name the vitamin not found in any animal food?
A.
Vitamin B12
B.
Vitamin C
C.
Vitamin D
D.
Vitamin K
Ans:
Vitamin C
Explanation :
Vitamin C, also known as ascorbic acid, is a water-soluble vitamin. Unlike most mammals and other animals, humans do not have the ability to make their own vitamin C. Therefore, we must obtain vitamin C through our diet.
[18] The largest organ of human body is :
A.
Heart
B.
Brain
C.
Liver
D.
Kidney
Ans:
Liver
Explanation :
Technically, the largest organ 'in' the body is the liver. Liver is also the heaviest organ, with an average of 1.6 kilograms (3.5 pounds). The largest organ 'of the body is the skin (the skin is 'outside' the body).
[19] Fiber diet includes -
A.
glycogen
B.
proteins
C.
cellulose
D.
fats
Ans:
cellulose
Explanation :
The components of dietary fiber include cellulose, lignin (only non-carbohydrate component of dietary fiber), pectin, chitan, etc. Such fibers increase fecal bulk and speed up the passage of food through the digestive tract.
[20] Quinine, the commonly used drug to treat malaria, is obtained from a plant. What part of the plant yields the drug?
A.
Leaves
B.
Fruits
C.
Root
D.
Stem bark
Ans:
Stem bark
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
[21] To carry out photosynthesis plants require -
A.
Oxygen
B.
Carbon-dioxide
C.
Nitrogen
D.
Hydrogen
Ans:
Carbon-dioxide
Explanation :
In photosynthesis, carbon dioxide is converted into sugars in a process called carbon fixation. Carbon fixation is a redox reaction, so photosynthesis needs to supply both a source of energy to drive this process, and the electrons needed to convert carbon dioxide into a carbohydrate, which is a reduction reaction.
[22] The human heart is enclosed in the -
A.
Pericardium
B.
Pleura
C.
Duramater
D.
Conjunctive
Ans:
Pericardium
Explanation :
The pericardium is a double-walled sac containing the heart and the roots of the great vessels. It is a tough double layered membrane which covers the heart. The space between the two layers of it is filled with a pericardium fluid which protects the heart from any kind of external jerk or shock.
[23] Which of the following is an example of tissue?
A.
Brain
B.
Blood
C.
Liver
D.
Stomach
Ans:
Blood
Explanation :
Blood is considered a connective tissue for two basic reasons: (1) it has the same origin as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes. In circulating blood two different cell types are found: enucleated erythrocytes or red blood cells and nucleated leukocytes or white blood cells.
[24] The human skeleton contains around -
A.
110 bones
B.
210 bones
C.
150 bones
D.
206 bones
Ans:
206 bones
Explanation :
A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations
[25] Heavy alcohol consuming people generally die of -
A.
blood cancer
B.
cirrhosis
C.
liver or stomach cancer
D.
weakening of heart muscles leading to cardiac arrest
Ans:
cirrhosis
Explanation :
Cirrhosis is scarring of the liver and poor liver function. It is the final phase of chronic liver disease which may result from a history of excess drinking habits. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease.
Explanation :
The eggs hatch into worms in a few weeks, and then the cycle repeats itself. Silkworms go through four stages of developmen
[4] Which one of the following is responsible for blue baby syndrome?
A.
Fluoride
B.
Nitrate
C.
Arsenic
D.
Lead
Ans:
Nitrate
Explanation :
The most common cause of blue baby syndrome is water contaminated with nitrates. After a baby drinks formula made with nitrate-rich water, the body converts the nitrates into nitrites. These nitrites bind to the hemoglobin in the body, forming methemoglobin, which is unable to carry oxygen.
[5] Maximum harm to a tree is caused by -
A.
loss of half of its leaves
B.
loss of all leaves
C.
loss of half of its branches
D.
loss of its bark
Ans:
loss of all leaves
Explanation :
Loss of all leaves lead to maximum harm as the tree loses its ability to perform photosynthesis so necessary for food manufacturing. Besides, loss of its bark will also be dangerous as it is the only part of a tree that is really alive. There is thin layer of cells right under the bark. If the bark is gone that layer dries out and dies.
[6] The humidity of air measured in percentage is called -
A.
absolute humidity
B.
specific humidity
C.
relative humidity
D.
all of these
Ans:
relative humidity
Explanation :
The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
[7] Which of the following is not an insectivorous plant?
A.
Nepenthes
B.
Utricularia
C.
Drosera
D.
Cuscuta
Ans:
Cuscuta
Explanation :
Insectivorous plants are : Aldrovanda, Archaeamphora, Brocchinia, Byblis, Catopsis, Dionaea, Drosera, Genlisea, Heliamphora, Nepenthes, Palaeoaldrovanda, Philcoxia, Roridule, Sarracenia, Stylidium, Triphyophyllum, Utricularia etc.
[8] The term 'Green Revolution' was coined by -
A.
William Gaud
B.
Charles Elton
C.
Eugene Odum
D.
M.S. Swaminathan
Ans:
William Gaud
Explanation :
The term ‘Green Revolution’ was first used in 1968 by former United States Agency for International Development (USA1D) Director William Gaud.
[9] Filaria is transmitted by -
A.
Aedes mosquito
B.
Anopheles mosquito
C.
Cuiex mosquito
D.
Swamp mosquito
Ans:
Cuiex mosquito
Explanation :
Aedes mosquito causes dengue fever. Anopheles mosquito causes malaria. Culex mosquito causes filaria.
[10] Which is the only mammal that can fly?
A.
Whale
B.
Bat
C.
Hen
D.
Lizard
Ans:
Bat
Explanation :
But no other mammal can fly like a bat can. “Flying” squirrels and similar mammals can only glide at best.
[11] Plants which flower only once in their lifetime are known as -
A.
polyearpie
B.
monocarpie
C.
monogamous
D.
monogeneric
Ans:
monocarpie
Explanation :
Plants that flower and fruit only once and then die are termed monocarpic or semelparous.
[12] The larvae of cockroach is called -
A.
Caterpillar
B.
Nymph
C.
Maggot
D.
Grub
Ans:
Nymph
Explanation :
The life cycle of cockroaches begins with the egg. Cockroach eggs hatch because of the combined pressure of the hatchlings within. Upon emerging from the egg case, or ootheca, this immature form of cockroach is known as a nymph or baby cockroach. Nymphs are bright white in color initially.
[13] The Drone in honey-bee are -
A.
Fertile male
B.
Fertile female
C.
Sterile male
D.
Sterile female
Ans:
Fertile male
Explanation :
Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ).
[14] Of which tissue nails, hoofs and horns are made of -
A.
Cuticle
B.
Chitin
C.
Keratin
D.
Tunicin
Ans:
Keratin
Explanation :
Keratin is a fibrous protein making up most cells found in our nails and hair and the epidermis layer of our skin. It also makes up fish scales and crustacean shells, bird feathers and beaks, and animal horns and hooves.
[15] Which one of the following vitamins helps in clotting of blood?
A.
Vitamin-A
B.
Vitamin-B
C.
Vitamin-D
D.
Vitamin-K
Ans:
Vitamin-K
Explanation :
Vitamin K plays a key role in helping the blood clot, preventing excessive bleeding. Unlike many other vitamins, vitamin K is not typically used as a dietary supplement. Vitamin K is actually a group of compounds. The most important of these compounds appears to be vitamin K1 and vitamin K2.
[16] Vector of Kala Azar is :
A.
Anopheles mosquito
B.
Culex mosquito
C.
Tse-Tsefly
D.
Sand fly
Ans:
Sand fly
Explanation :
Leishmaniasis (Kala Azar) is a disease spread by the bite of the female sand fly. This disease is the second-largest parasitic killer in the world (after malaria). The parasite migrates to the internal organs such as liver, spleen (hence 'viscera), and bone marrow, and, if left untreated, will almost always result in the death of the host.
[17] Name the vitamin not found in any animal food?
A.
Vitamin B12
B.
Vitamin C
C.
Vitamin D
D.
Vitamin K
Ans:
Vitamin C
Explanation :
Vitamin C, also known as ascorbic acid, is a water-soluble vitamin. Unlike most mammals and other animals, humans do not have the ability to make their own vitamin C. Therefore, we must obtain vitamin C through our diet.
[18] The largest organ of human body is :
A.
Heart
B.
Brain
C.
Liver
D.
Kidney
Ans:
Liver
Explanation :
Technically, the largest organ 'in' the body is the liver. Liver is also the heaviest organ, with an average of 1.6 kilograms (3.5 pounds). The largest organ 'of the body is the skin (the skin is 'outside' the body).
[19] Fiber diet includes -
A.
glycogen
B.
proteins
C.
cellulose
D.
fats
Ans:
cellulose
Explanation :
The components of dietary fiber include cellulose, lignin (only non-carbohydrate component of dietary fiber), pectin, chitan, etc. Such fibers increase fecal bulk and speed up the passage of food through the digestive tract.
[20] Quinine, the commonly used drug to treat malaria, is obtained from a plant. What part of the plant yields the drug?
A.
Leaves
B.
Fruits
C.
Root
D.
Stem bark
Ans:
Stem bark
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
[21] To carry out photosynthesis plants require -
A.
Oxygen
B.
Carbon-dioxide
C.
Nitrogen
D.
Hydrogen
Ans:
Carbon-dioxide
Explanation :
In photosynthesis, carbon dioxide is converted into sugars in a process called carbon fixation. Carbon fixation is a redox reaction, so photosynthesis needs to supply both a source of energy to drive this process, and the electrons needed to convert carbon dioxide into a carbohydrate, which is a reduction reaction.
[22] The human heart is enclosed in the -
A.
Pericardium
B.
Pleura
C.
Duramater
D.
Conjunctive
Ans:
Pericardium
Explanation :
The pericardium is a double-walled sac containing the heart and the roots of the great vessels. It is a tough double layered membrane which covers the heart. The space between the two layers of it is filled with a pericardium fluid which protects the heart from any kind of external jerk or shock.
[23] Which of the following is an example of tissue?
A.
Brain
B.
Blood
C.
Liver
D.
Stomach
Ans:
Blood
Explanation :
Blood is considered a connective tissue for two basic reasons: (1) it has the same origin as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes. In circulating blood two different cell types are found: enucleated erythrocytes or red blood cells and nucleated leukocytes or white blood cells.
[24] The human skeleton contains around -
A.
110 bones
B.
210 bones
C.
150 bones
D.
206 bones
Ans:
206 bones
Explanation :
A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations
[25] Heavy alcohol consuming people generally die of -
A.
blood cancer
B.
cirrhosis
C.
liver or stomach cancer
D.
weakening of heart muscles leading to cardiac arrest
Ans:
cirrhosis
Explanation :
Cirrhosis is scarring of the liver and poor liver function. It is the final phase of chronic liver disease which may result from a history of excess drinking habits. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease.
Explanation :
Loss of all leaves lead to maximum harm as the tree loses its ability to perform photosynthesis so necessary for food manufacturing. Besides, loss of its bark will also be dangerous as it is the only part of a tree that is really alive. There is thin layer of cells right under the bark. If the bark is gone that layer dries out and dies.
[6] The humidity of air measured in percentage is called -
A.
absolute humidity
B.
specific humidity
C.
relative humidity
D.
all of these
Ans:
relative humidity
Explanation :
The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
[7] Which of the following is not an insectivorous plant?
A.
Nepenthes
B.
Utricularia
C.
Drosera
D.
Cuscuta
Ans:
Cuscuta
Explanation :
Insectivorous plants are : Aldrovanda, Archaeamphora, Brocchinia, Byblis, Catopsis, Dionaea, Drosera, Genlisea, Heliamphora, Nepenthes, Palaeoaldrovanda, Philcoxia, Roridule, Sarracenia, Stylidium, Triphyophyllum, Utricularia etc.
[8] The term 'Green Revolution' was coined by -
A.
William Gaud
B.
Charles Elton
C.
Eugene Odum
D.
M.S. Swaminathan
Ans:
William Gaud
Explanation :
The term ‘Green Revolution’ was first used in 1968 by former United States Agency for International Development (USA1D) Director William Gaud.
[9] Filaria is transmitted by -
A.
Aedes mosquito
B.
Anopheles mosquito
C.
Cuiex mosquito
D.
Swamp mosquito
Ans:
Cuiex mosquito
Explanation :
Aedes mosquito causes dengue fever. Anopheles mosquito causes malaria. Culex mosquito causes filaria.
[10] Which is the only mammal that can fly?
A.
Whale
B.
Bat
C.
Hen
D.
Lizard
Ans:
Bat
Explanation :
But no other mammal can fly like a bat can. “Flying” squirrels and similar mammals can only glide at best.
[11] Plants which flower only once in their lifetime are known as -
A.
polyearpie
B.
monocarpie
C.
monogamous
D.
monogeneric
Ans:
monocarpie
Explanation :
Plants that flower and fruit only once and then die are termed monocarpic or semelparous.
[12] The larvae of cockroach is called -
A.
Caterpillar
B.
Nymph
C.
Maggot
D.
Grub
Ans:
Nymph
Explanation :
The life cycle of cockroaches begins with the egg. Cockroach eggs hatch because of the combined pressure of the hatchlings within. Upon emerging from the egg case, or ootheca, this immature form of cockroach is known as a nymph or baby cockroach. Nymphs are bright white in color initially.
[13] The Drone in honey-bee are -
A.
Fertile male
B.
Fertile female
C.
Sterile male
D.
Sterile female
Ans:
Fertile male
Explanation :
Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ).
[14] Of which tissue nails, hoofs and horns are made of -
A.
Cuticle
B.
Chitin
C.
Keratin
D.
Tunicin
Ans:
Keratin
Explanation :
Keratin is a fibrous protein making up most cells found in our nails and hair and the epidermis layer of our skin. It also makes up fish scales and crustacean shells, bird feathers and beaks, and animal horns and hooves.
[15] Which one of the following vitamins helps in clotting of blood?
A.
Vitamin-A
B.
Vitamin-B
C.
Vitamin-D
D.
Vitamin-K
Ans:
Vitamin-K
Explanation :
Vitamin K plays a key role in helping the blood clot, preventing excessive bleeding. Unlike many other vitamins, vitamin K is not typically used as a dietary supplement. Vitamin K is actually a group of compounds. The most important of these compounds appears to be vitamin K1 and vitamin K2.
[16] Vector of Kala Azar is :
A.
Anopheles mosquito
B.
Culex mosquito
C.
Tse-Tsefly
D.
Sand fly
Ans:
Sand fly
Explanation :
Leishmaniasis (Kala Azar) is a disease spread by the bite of the female sand fly. This disease is the second-largest parasitic killer in the world (after malaria). The parasite migrates to the internal organs such as liver, spleen (hence 'viscera), and bone marrow, and, if left untreated, will almost always result in the death of the host.
[17] Name the vitamin not found in any animal food?
A.
Vitamin B12
B.
Vitamin C
C.
Vitamin D
D.
Vitamin K
Ans:
Vitamin C
Explanation :
Vitamin C, also known as ascorbic acid, is a water-soluble vitamin. Unlike most mammals and other animals, humans do not have the ability to make their own vitamin C. Therefore, we must obtain vitamin C through our diet.
[18] The largest organ of human body is :
A.
Heart
B.
Brain
C.
Liver
D.
Kidney
Ans:
Liver
Explanation :
Technically, the largest organ 'in' the body is the liver. Liver is also the heaviest organ, with an average of 1.6 kilograms (3.5 pounds). The largest organ 'of the body is the skin (the skin is 'outside' the body).
[19] Fiber diet includes -
A.
glycogen
B.
proteins
C.
cellulose
D.
fats
Ans:
cellulose
Explanation :
The components of dietary fiber include cellulose, lignin (only non-carbohydrate component of dietary fiber), pectin, chitan, etc. Such fibers increase fecal bulk and speed up the passage of food through the digestive tract.
[20] Quinine, the commonly used drug to treat malaria, is obtained from a plant. What part of the plant yields the drug?
A.
Leaves
B.
Fruits
C.
Root
D.
Stem bark
Ans:
Stem bark
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
[21] To carry out photosynthesis plants require -
A.
Oxygen
B.
Carbon-dioxide
C.
Nitrogen
D.
Hydrogen
Ans:
Carbon-dioxide
Explanation :
In photosynthesis, carbon dioxide is converted into sugars in a process called carbon fixation. Carbon fixation is a redox reaction, so photosynthesis needs to supply both a source of energy to drive this process, and the electrons needed to convert carbon dioxide into a carbohydrate, which is a reduction reaction.
[22] The human heart is enclosed in the -
A.
Pericardium
B.
Pleura
C.
Duramater
D.
Conjunctive
Ans:
Pericardium
Explanation :
The pericardium is a double-walled sac containing the heart and the roots of the great vessels. It is a tough double layered membrane which covers the heart. The space between the two layers of it is filled with a pericardium fluid which protects the heart from any kind of external jerk or shock.
[23] Which of the following is an example of tissue?
A.
Brain
B.
Blood
C.
Liver
D.
Stomach
Ans:
Blood
Explanation :
Blood is considered a connective tissue for two basic reasons: (1) it has the same origin as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes. In circulating blood two different cell types are found: enucleated erythrocytes or red blood cells and nucleated leukocytes or white blood cells.
[24] The human skeleton contains around -
A.
110 bones
B.
210 bones
C.
150 bones
D.
206 bones
Ans:
206 bones
Explanation :
A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations
[25] Heavy alcohol consuming people generally die of -
A.
blood cancer
B.
cirrhosis
C.
liver or stomach cancer
D.
weakening of heart muscles leading to cardiac arrest
Ans:
cirrhosis
Explanation :
Cirrhosis is scarring of the liver and poor liver function. It is the final phase of chronic liver disease which may result from a history of excess drinking habits. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease.
Explanation :
Insectivorous plants are : Aldrovanda, Archaeamphora, Brocchinia, Byblis, Catopsis, Dionaea, Drosera, Genlisea, Heliamphora, Nepenthes, Palaeoaldrovanda, Philcoxia, Roridule, Sarracenia, Stylidium, Triphyophyllum, Utricularia etc.
[8] The term 'Green Revolution' was coined by -
A.
William Gaud
B.
Charles Elton
C.
Eugene Odum
D.
M.S. Swaminathan
Ans:
William Gaud
Explanation :
The term ‘Green Revolution’ was first used in 1968 by former United States Agency for International Development (USA1D) Director William Gaud.
[9] Filaria is transmitted by -
A.
Aedes mosquito
B.
Anopheles mosquito
C.
Cuiex mosquito
D.
Swamp mosquito
Ans:
Cuiex mosquito
Explanation :
Aedes mosquito causes dengue fever. Anopheles mosquito causes malaria. Culex mosquito causes filaria.
[10] Which is the only mammal that can fly?
A.
Whale
B.
Bat
C.
Hen
D.
Lizard
Ans:
Bat
Explanation :
But no other mammal can fly like a bat can. “Flying” squirrels and similar mammals can only glide at best.
[11] Plants which flower only once in their lifetime are known as -
A.
polyearpie
B.
monocarpie
C.
monogamous
D.
monogeneric
Ans:
monocarpie
Explanation :
Plants that flower and fruit only once and then die are termed monocarpic or semelparous.
[12] The larvae of cockroach is called -
A.
Caterpillar
B.
Nymph
C.
Maggot
D.
Grub
Ans:
Nymph
Explanation :
The life cycle of cockroaches begins with the egg. Cockroach eggs hatch because of the combined pressure of the hatchlings within. Upon emerging from the egg case, or ootheca, this immature form of cockroach is known as a nymph or baby cockroach. Nymphs are bright white in color initially.
[13] The Drone in honey-bee are -
A.
Fertile male
B.
Fertile female
C.
Sterile male
D.
Sterile female
Ans:
Fertile male
Explanation :
Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ).
[14] Of which tissue nails, hoofs and horns are made of -
A.
Cuticle
B.
Chitin
C.
Keratin
D.
Tunicin
Ans:
Keratin
Explanation :
Keratin is a fibrous protein making up most cells found in our nails and hair and the epidermis layer of our skin. It also makes up fish scales and crustacean shells, bird feathers and beaks, and animal horns and hooves.
[15] Which one of the following vitamins helps in clotting of blood?
A.
Vitamin-A
B.
Vitamin-B
C.
Vitamin-D
D.
Vitamin-K
Ans:
Vitamin-K
Explanation :
Vitamin K plays a key role in helping the blood clot, preventing excessive bleeding. Unlike many other vitamins, vitamin K is not typically used as a dietary supplement. Vitamin K is actually a group of compounds. The most important of these compounds appears to be vitamin K1 and vitamin K2.
[16] Vector of Kala Azar is :
A.
Anopheles mosquito
B.
Culex mosquito
C.
Tse-Tsefly
D.
Sand fly
Ans:
Sand fly
Explanation :
Leishmaniasis (Kala Azar) is a disease spread by the bite of the female sand fly. This disease is the second-largest parasitic killer in the world (after malaria). The parasite migrates to the internal organs such as liver, spleen (hence 'viscera), and bone marrow, and, if left untreated, will almost always result in the death of the host.
[17] Name the vitamin not found in any animal food?
A.
Vitamin B12
B.
Vitamin C
C.
Vitamin D
D.
Vitamin K
Ans:
Vitamin C
Explanation :
Vitamin C, also known as ascorbic acid, is a water-soluble vitamin. Unlike most mammals and other animals, humans do not have the ability to make their own vitamin C. Therefore, we must obtain vitamin C through our diet.
[18] The largest organ of human body is :
A.
Heart
B.
Brain
C.
Liver
D.
Kidney
Ans:
Liver
Explanation :
Technically, the largest organ 'in' the body is the liver. Liver is also the heaviest organ, with an average of 1.6 kilograms (3.5 pounds). The largest organ 'of the body is the skin (the skin is 'outside' the body).
[19] Fiber diet includes -
A.
glycogen
B.
proteins
C.
cellulose
D.
fats
Ans:
cellulose
Explanation :
The components of dietary fiber include cellulose, lignin (only non-carbohydrate component of dietary fiber), pectin, chitan, etc. Such fibers increase fecal bulk and speed up the passage of food through the digestive tract.
[20] Quinine, the commonly used drug to treat malaria, is obtained from a plant. What part of the plant yields the drug?
A.
Leaves
B.
Fruits
C.
Root
D.
Stem bark
Ans:
Stem bark
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
[21] To carry out photosynthesis plants require -
A.
Oxygen
B.
Carbon-dioxide
C.
Nitrogen
D.
Hydrogen
Ans:
Carbon-dioxide
Explanation :
In photosynthesis, carbon dioxide is converted into sugars in a process called carbon fixation. Carbon fixation is a redox reaction, so photosynthesis needs to supply both a source of energy to drive this process, and the electrons needed to convert carbon dioxide into a carbohydrate, which is a reduction reaction.
[22] The human heart is enclosed in the -
A.
Pericardium
B.
Pleura
C.
Duramater
D.
Conjunctive
Ans:
Pericardium
Explanation :
The pericardium is a double-walled sac containing the heart and the roots of the great vessels. It is a tough double layered membrane which covers the heart. The space between the two layers of it is filled with a pericardium fluid which protects the heart from any kind of external jerk or shock.
[23] Which of the following is an example of tissue?
A.
Brain
B.
Blood
C.
Liver
D.
Stomach
Ans:
Blood
Explanation :
Blood is considered a connective tissue for two basic reasons: (1) it has the same origin as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes. In circulating blood two different cell types are found: enucleated erythrocytes or red blood cells and nucleated leukocytes or white blood cells.
[24] The human skeleton contains around -
A.
110 bones
B.
210 bones
C.
150 bones
D.
206 bones
Ans:
206 bones
Explanation :
A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations
[25] Heavy alcohol consuming people generally die of -
A.
blood cancer
B.
cirrhosis
C.
liver or stomach cancer
D.
weakening of heart muscles leading to cardiac arrest
Ans:
cirrhosis
Explanation :
Cirrhosis is scarring of the liver and poor liver function. It is the final phase of chronic liver disease which may result from a history of excess drinking habits. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease.
Explanation :
Aedes mosquito causes dengue fever. Anopheles mosquito causes malaria. Culex mosquito causes filaria.
[10] Which is the only mammal that can fly?
A.
Whale
B.
Bat
C.
Hen
D.
Lizard
Ans:
Bat
Explanation :
But no other mammal can fly like a bat can. “Flying” squirrels and similar mammals can only glide at best.
[11] Plants which flower only once in their lifetime are known as -
A.
polyearpie
B.
monocarpie
C.
monogamous
D.
monogeneric
Ans:
monocarpie
Explanation :
Plants that flower and fruit only once and then die are termed monocarpic or semelparous.
[12] The larvae of cockroach is called -
A.
Caterpillar
B.
Nymph
C.
Maggot
D.
Grub
Ans:
Nymph
Explanation :
The life cycle of cockroaches begins with the egg. Cockroach eggs hatch because of the combined pressure of the hatchlings within. Upon emerging from the egg case, or ootheca, this immature form of cockroach is known as a nymph or baby cockroach. Nymphs are bright white in color initially.
[13] The Drone in honey-bee are -
A.
Fertile male
B.
Fertile female
C.
Sterile male
D.
Sterile female
Ans:
Fertile male
Explanation :
Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ).
[14] Of which tissue nails, hoofs and horns are made of -
A.
Cuticle
B.
Chitin
C.
Keratin
D.
Tunicin
Ans:
Keratin
Explanation :
Keratin is a fibrous protein making up most cells found in our nails and hair and the epidermis layer of our skin. It also makes up fish scales and crustacean shells, bird feathers and beaks, and animal horns and hooves.
[15] Which one of the following vitamins helps in clotting of blood?
A.
Vitamin-A
B.
Vitamin-B
C.
Vitamin-D
D.
Vitamin-K
Ans:
Vitamin-K
Explanation :
Vitamin K plays a key role in helping the blood clot, preventing excessive bleeding. Unlike many other vitamins, vitamin K is not typically used as a dietary supplement. Vitamin K is actually a group of compounds. The most important of these compounds appears to be vitamin K1 and vitamin K2.
[16] Vector of Kala Azar is :
A.
Anopheles mosquito
B.
Culex mosquito
C.
Tse-Tsefly
D.
Sand fly
Ans:
Sand fly
Explanation :
Leishmaniasis (Kala Azar) is a disease spread by the bite of the female sand fly. This disease is the second-largest parasitic killer in the world (after malaria). The parasite migrates to the internal organs such as liver, spleen (hence 'viscera), and bone marrow, and, if left untreated, will almost always result in the death of the host.
[17] Name the vitamin not found in any animal food?
A.
Vitamin B12
B.
Vitamin C
C.
Vitamin D
D.
Vitamin K
Ans:
Vitamin C
Explanation :
Vitamin C, also known as ascorbic acid, is a water-soluble vitamin. Unlike most mammals and other animals, humans do not have the ability to make their own vitamin C. Therefore, we must obtain vitamin C through our diet.
[18] The largest organ of human body is :
A.
Heart
B.
Brain
C.
Liver
D.
Kidney
Ans:
Liver
Explanation :
Technically, the largest organ 'in' the body is the liver. Liver is also the heaviest organ, with an average of 1.6 kilograms (3.5 pounds). The largest organ 'of the body is the skin (the skin is 'outside' the body).
[19] Fiber diet includes -
A.
glycogen
B.
proteins
C.
cellulose
D.
fats
Ans:
cellulose
Explanation :
The components of dietary fiber include cellulose, lignin (only non-carbohydrate component of dietary fiber), pectin, chitan, etc. Such fibers increase fecal bulk and speed up the passage of food through the digestive tract.
[20] Quinine, the commonly used drug to treat malaria, is obtained from a plant. What part of the plant yields the drug?
A.
Leaves
B.
Fruits
C.
Root
D.
Stem bark
Ans:
Stem bark
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
[21] To carry out photosynthesis plants require -
A.
Oxygen
B.
Carbon-dioxide
C.
Nitrogen
D.
Hydrogen
Ans:
Carbon-dioxide
Explanation :
In photosynthesis, carbon dioxide is converted into sugars in a process called carbon fixation. Carbon fixation is a redox reaction, so photosynthesis needs to supply both a source of energy to drive this process, and the electrons needed to convert carbon dioxide into a carbohydrate, which is a reduction reaction.
[22] The human heart is enclosed in the -
A.
Pericardium
B.
Pleura
C.
Duramater
D.
Conjunctive
Ans:
Pericardium
Explanation :
The pericardium is a double-walled sac containing the heart and the roots of the great vessels. It is a tough double layered membrane which covers the heart. The space between the two layers of it is filled with a pericardium fluid which protects the heart from any kind of external jerk or shock.
[23] Which of the following is an example of tissue?
A.
Brain
B.
Blood
C.
Liver
D.
Stomach
Ans:
Blood
Explanation :
Blood is considered a connective tissue for two basic reasons: (1) it has the same origin as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes. In circulating blood two different cell types are found: enucleated erythrocytes or red blood cells and nucleated leukocytes or white blood cells.
[24] The human skeleton contains around -
A.
110 bones
B.
210 bones
C.
150 bones
D.
206 bones
Ans:
206 bones
Explanation :
A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations
[25] Heavy alcohol consuming people generally die of -
A.
blood cancer
B.
cirrhosis
C.
liver or stomach cancer
D.
weakening of heart muscles leading to cardiac arrest
Ans:
cirrhosis
Explanation :
Cirrhosis is scarring of the liver and poor liver function. It is the final phase of chronic liver disease which may result from a history of excess drinking habits. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease.
Explanation :
Plants that flower and fruit only once and then die are termed monocarpic or semelparous.
[12] The larvae of cockroach is called -
A.
Caterpillar
B.
Nymph
C.
Maggot
D.
Grub
Ans:
Nymph
Explanation :
The life cycle of cockroaches begins with the egg. Cockroach eggs hatch because of the combined pressure of the hatchlings within. Upon emerging from the egg case, or ootheca, this immature form of cockroach is known as a nymph or baby cockroach. Nymphs are bright white in color initially.
[13] The Drone in honey-bee are -
A.
Fertile male
B.
Fertile female
C.
Sterile male
D.
Sterile female
Ans:
Fertile male
Explanation :
Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ).
[14] Of which tissue nails, hoofs and horns are made of -
A.
Cuticle
B.
Chitin
C.
Keratin
D.
Tunicin
Ans:
Keratin
Explanation :
Keratin is a fibrous protein making up most cells found in our nails and hair and the epidermis layer of our skin. It also makes up fish scales and crustacean shells, bird feathers and beaks, and animal horns and hooves.
[15] Which one of the following vitamins helps in clotting of blood?
A.
Vitamin-A
B.
Vitamin-B
C.
Vitamin-D
D.
Vitamin-K
Ans:
Vitamin-K
Explanation :
Vitamin K plays a key role in helping the blood clot, preventing excessive bleeding. Unlike many other vitamins, vitamin K is not typically used as a dietary supplement. Vitamin K is actually a group of compounds. The most important of these compounds appears to be vitamin K1 and vitamin K2.
[16] Vector of Kala Azar is :
A.
Anopheles mosquito
B.
Culex mosquito
C.
Tse-Tsefly
D.
Sand fly
Ans:
Sand fly
Explanation :
Leishmaniasis (Kala Azar) is a disease spread by the bite of the female sand fly. This disease is the second-largest parasitic killer in the world (after malaria). The parasite migrates to the internal organs such as liver, spleen (hence 'viscera), and bone marrow, and, if left untreated, will almost always result in the death of the host.
[17] Name the vitamin not found in any animal food?
A.
Vitamin B12
B.
Vitamin C
C.
Vitamin D
D.
Vitamin K
Ans:
Vitamin C
Explanation :
Vitamin C, also known as ascorbic acid, is a water-soluble vitamin. Unlike most mammals and other animals, humans do not have the ability to make their own vitamin C. Therefore, we must obtain vitamin C through our diet.
[18] The largest organ of human body is :
A.
Heart
B.
Brain
C.
Liver
D.
Kidney
Ans:
Liver
Explanation :
Technically, the largest organ 'in' the body is the liver. Liver is also the heaviest organ, with an average of 1.6 kilograms (3.5 pounds). The largest organ 'of the body is the skin (the skin is 'outside' the body).
[19] Fiber diet includes -
A.
glycogen
B.
proteins
C.
cellulose
D.
fats
Ans:
cellulose
Explanation :
The components of dietary fiber include cellulose, lignin (only non-carbohydrate component of dietary fiber), pectin, chitan, etc. Such fibers increase fecal bulk and speed up the passage of food through the digestive tract.
[20] Quinine, the commonly used drug to treat malaria, is obtained from a plant. What part of the plant yields the drug?
A.
Leaves
B.
Fruits
C.
Root
D.
Stem bark
Ans:
Stem bark
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
[21] To carry out photosynthesis plants require -
A.
Oxygen
B.
Carbon-dioxide
C.
Nitrogen
D.
Hydrogen
Ans:
Carbon-dioxide
Explanation :
In photosynthesis, carbon dioxide is converted into sugars in a process called carbon fixation. Carbon fixation is a redox reaction, so photosynthesis needs to supply both a source of energy to drive this process, and the electrons needed to convert carbon dioxide into a carbohydrate, which is a reduction reaction.
[22] The human heart is enclosed in the -
A.
Pericardium
B.
Pleura
C.
Duramater
D.
Conjunctive
Ans:
Pericardium
Explanation :
The pericardium is a double-walled sac containing the heart and the roots of the great vessels. It is a tough double layered membrane which covers the heart. The space between the two layers of it is filled with a pericardium fluid which protects the heart from any kind of external jerk or shock.
[23] Which of the following is an example of tissue?
A.
Brain
B.
Blood
C.
Liver
D.
Stomach
Ans:
Blood
Explanation :
Blood is considered a connective tissue for two basic reasons: (1) it has the same origin as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes. In circulating blood two different cell types are found: enucleated erythrocytes or red blood cells and nucleated leukocytes or white blood cells.
[24] The human skeleton contains around -
A.
110 bones
B.
210 bones
C.
150 bones
D.
206 bones
Ans:
206 bones
Explanation :
A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations
[25] Heavy alcohol consuming people generally die of -
A.
blood cancer
B.
cirrhosis
C.
liver or stomach cancer
D.
weakening of heart muscles leading to cardiac arrest
Ans:
cirrhosis
Explanation :
Cirrhosis is scarring of the liver and poor liver function. It is the final phase of chronic liver disease which may result from a history of excess drinking habits. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease.
Explanation :
Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ).
[14] Of which tissue nails, hoofs and horns are made of -
A.
Cuticle
B.
Chitin
C.
Keratin
D.
Tunicin
Ans:
Keratin
Explanation :
Keratin is a fibrous protein making up most cells found in our nails and hair and the epidermis layer of our skin. It also makes up fish scales and crustacean shells, bird feathers and beaks, and animal horns and hooves.
[15] Which one of the following vitamins helps in clotting of blood?
A.
Vitamin-A
B.
Vitamin-B
C.
Vitamin-D
D.
Vitamin-K
Ans:
Vitamin-K
Explanation :
Vitamin K plays a key role in helping the blood clot, preventing excessive bleeding. Unlike many other vitamins, vitamin K is not typically used as a dietary supplement. Vitamin K is actually a group of compounds. The most important of these compounds appears to be vitamin K1 and vitamin K2.
[16] Vector of Kala Azar is :
A.
Anopheles mosquito
B.
Culex mosquito
C.
Tse-Tsefly
D.
Sand fly
Ans:
Sand fly
Explanation :
Leishmaniasis (Kala Azar) is a disease spread by the bite of the female sand fly. This disease is the second-largest parasitic killer in the world (after malaria). The parasite migrates to the internal organs such as liver, spleen (hence 'viscera), and bone marrow, and, if left untreated, will almost always result in the death of the host.
[17] Name the vitamin not found in any animal food?
A.
Vitamin B12
B.
Vitamin C
C.
Vitamin D
D.
Vitamin K
Ans:
Vitamin C
Explanation :
Vitamin C, also known as ascorbic acid, is a water-soluble vitamin. Unlike most mammals and other animals, humans do not have the ability to make their own vitamin C. Therefore, we must obtain vitamin C through our diet.
[18] The largest organ of human body is :
A.
Heart
B.
Brain
C.
Liver
D.
Kidney
Ans:
Liver
Explanation :
Technically, the largest organ 'in' the body is the liver. Liver is also the heaviest organ, with an average of 1.6 kilograms (3.5 pounds). The largest organ 'of the body is the skin (the skin is 'outside' the body).
[19] Fiber diet includes -
A.
glycogen
B.
proteins
C.
cellulose
D.
fats
Ans:
cellulose
Explanation :
The components of dietary fiber include cellulose, lignin (only non-carbohydrate component of dietary fiber), pectin, chitan, etc. Such fibers increase fecal bulk and speed up the passage of food through the digestive tract.
[20] Quinine, the commonly used drug to treat malaria, is obtained from a plant. What part of the plant yields the drug?
A.
Leaves
B.
Fruits
C.
Root
D.
Stem bark
Ans:
Stem bark
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
[21] To carry out photosynthesis plants require -
A.
Oxygen
B.
Carbon-dioxide
C.
Nitrogen
D.
Hydrogen
Ans:
Carbon-dioxide
Explanation :
In photosynthesis, carbon dioxide is converted into sugars in a process called carbon fixation. Carbon fixation is a redox reaction, so photosynthesis needs to supply both a source of energy to drive this process, and the electrons needed to convert carbon dioxide into a carbohydrate, which is a reduction reaction.
[22] The human heart is enclosed in the -
A.
Pericardium
B.
Pleura
C.
Duramater
D.
Conjunctive
Ans:
Pericardium
Explanation :
The pericardium is a double-walled sac containing the heart and the roots of the great vessels. It is a tough double layered membrane which covers the heart. The space between the two layers of it is filled with a pericardium fluid which protects the heart from any kind of external jerk or shock.
[23] Which of the following is an example of tissue?
A.
Brain
B.
Blood
C.
Liver
D.
Stomach
Ans:
Blood
Explanation :
Blood is considered a connective tissue for two basic reasons: (1) it has the same origin as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes. In circulating blood two different cell types are found: enucleated erythrocytes or red blood cells and nucleated leukocytes or white blood cells.
[24] The human skeleton contains around -
A.
110 bones
B.
210 bones
C.
150 bones
D.
206 bones
Ans:
206 bones
Explanation :
A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations
[25] Heavy alcohol consuming people generally die of -
A.
blood cancer
B.
cirrhosis
C.
liver or stomach cancer
D.
weakening of heart muscles leading to cardiac arrest
Ans:
cirrhosis
Explanation :
Cirrhosis is scarring of the liver and poor liver function. It is the final phase of chronic liver disease which may result from a history of excess drinking habits. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease.
Explanation :
Vitamin K plays a key role in helping the blood clot, preventing excessive bleeding. Unlike many other vitamins, vitamin K is not typically used as a dietary supplement. Vitamin K is actually a group of compounds. The most important of these compounds appears to be vitamin K1 and vitamin K2.
[16] Vector of Kala Azar is :
A.
Anopheles mosquito
B.
Culex mosquito
C.
Tse-Tsefly
D.
Sand fly
Ans:
Sand fly
Explanation :
Leishmaniasis (Kala Azar) is a disease spread by the bite of the female sand fly. This disease is the second-largest parasitic killer in the world (after malaria). The parasite migrates to the internal organs such as liver, spleen (hence 'viscera), and bone marrow, and, if left untreated, will almost always result in the death of the host.
[17] Name the vitamin not found in any animal food?
A.
Vitamin B12
B.
Vitamin C
C.
Vitamin D
D.
Vitamin K
Ans:
Vitamin C
Explanation :
Vitamin C, also known as ascorbic acid, is a water-soluble vitamin. Unlike most mammals and other animals, humans do not have the ability to make their own vitamin C. Therefore, we must obtain vitamin C through our diet.
[18] The largest organ of human body is :
A.
Heart
B.
Brain
C.
Liver
D.
Kidney
Ans:
Liver
Explanation :
Technically, the largest organ 'in' the body is the liver. Liver is also the heaviest organ, with an average of 1.6 kilograms (3.5 pounds). The largest organ 'of the body is the skin (the skin is 'outside' the body).
[19] Fiber diet includes -
A.
glycogen
B.
proteins
C.
cellulose
D.
fats
Ans:
cellulose
Explanation :
The components of dietary fiber include cellulose, lignin (only non-carbohydrate component of dietary fiber), pectin, chitan, etc. Such fibers increase fecal bulk and speed up the passage of food through the digestive tract.
[20] Quinine, the commonly used drug to treat malaria, is obtained from a plant. What part of the plant yields the drug?
A.
Leaves
B.
Fruits
C.
Root
D.
Stem bark
Ans:
Stem bark
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
[21] To carry out photosynthesis plants require -
A.
Oxygen
B.
Carbon-dioxide
C.
Nitrogen
D.
Hydrogen
Ans:
Carbon-dioxide
Explanation :
In photosynthesis, carbon dioxide is converted into sugars in a process called carbon fixation. Carbon fixation is a redox reaction, so photosynthesis needs to supply both a source of energy to drive this process, and the electrons needed to convert carbon dioxide into a carbohydrate, which is a reduction reaction.
[22] The human heart is enclosed in the -
A.
Pericardium
B.
Pleura
C.
Duramater
D.
Conjunctive
Ans:
Pericardium
Explanation :
The pericardium is a double-walled sac containing the heart and the roots of the great vessels. It is a tough double layered membrane which covers the heart. The space between the two layers of it is filled with a pericardium fluid which protects the heart from any kind of external jerk or shock.
[23] Which of the following is an example of tissue?
A.
Brain
B.
Blood
C.
Liver
D.
Stomach
Ans:
Blood
Explanation :
Blood is considered a connective tissue for two basic reasons: (1) it has the same origin as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes. In circulating blood two different cell types are found: enucleated erythrocytes or red blood cells and nucleated leukocytes or white blood cells.
[24] The human skeleton contains around -
A.
110 bones
B.
210 bones
C.
150 bones
D.
206 bones
Ans:
206 bones
Explanation :
A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations
[25] Heavy alcohol consuming people generally die of -
A.
blood cancer
B.
cirrhosis
C.
liver or stomach cancer
D.
weakening of heart muscles leading to cardiac arrest
Ans:
cirrhosis
Explanation :
Cirrhosis is scarring of the liver and poor liver function. It is the final phase of chronic liver disease which may result from a history of excess drinking habits. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease.
Explanation :
Vitamin C, also known as ascorbic acid, is a water-soluble vitamin. Unlike most mammals and other animals, humans do not have the ability to make their own vitamin C. Therefore, we must obtain vitamin C through our diet.
[18] The largest organ of human body is :
A.
Heart
B.
Brain
C.
Liver
D.
Kidney
Ans:
Liver
Explanation :
Technically, the largest organ 'in' the body is the liver. Liver is also the heaviest organ, with an average of 1.6 kilograms (3.5 pounds). The largest organ 'of the body is the skin (the skin is 'outside' the body).
[19] Fiber diet includes -
A.
glycogen
B.
proteins
C.
cellulose
D.
fats
Ans:
cellulose
Explanation :
The components of dietary fiber include cellulose, lignin (only non-carbohydrate component of dietary fiber), pectin, chitan, etc. Such fibers increase fecal bulk and speed up the passage of food through the digestive tract.
[20] Quinine, the commonly used drug to treat malaria, is obtained from a plant. What part of the plant yields the drug?
A.
Leaves
B.
Fruits
C.
Root
D.
Stem bark
Ans:
Stem bark
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
[21] To carry out photosynthesis plants require -
A.
Oxygen
B.
Carbon-dioxide
C.
Nitrogen
D.
Hydrogen
Ans:
Carbon-dioxide
Explanation :
In photosynthesis, carbon dioxide is converted into sugars in a process called carbon fixation. Carbon fixation is a redox reaction, so photosynthesis needs to supply both a source of energy to drive this process, and the electrons needed to convert carbon dioxide into a carbohydrate, which is a reduction reaction.
[22] The human heart is enclosed in the -
A.
Pericardium
B.
Pleura
C.
Duramater
D.
Conjunctive
Ans:
Pericardium
Explanation :
The pericardium is a double-walled sac containing the heart and the roots of the great vessels. It is a tough double layered membrane which covers the heart. The space between the two layers of it is filled with a pericardium fluid which protects the heart from any kind of external jerk or shock.
[23] Which of the following is an example of tissue?
A.
Brain
B.
Blood
C.
Liver
D.
Stomach
Ans:
Blood
Explanation :
Blood is considered a connective tissue for two basic reasons: (1) it has the same origin as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes. In circulating blood two different cell types are found: enucleated erythrocytes or red blood cells and nucleated leukocytes or white blood cells.
[24] The human skeleton contains around -
A.
110 bones
B.
210 bones
C.
150 bones
D.
206 bones
Ans:
206 bones
Explanation :
A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations
[25] Heavy alcohol consuming people generally die of -
A.
blood cancer
B.
cirrhosis
C.
liver or stomach cancer
D.
weakening of heart muscles leading to cardiac arrest
Ans:
cirrhosis
Explanation :
Cirrhosis is scarring of the liver and poor liver function. It is the final phase of chronic liver disease which may result from a history of excess drinking habits. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease.
Explanation :
The components of dietary fiber include cellulose, lignin (only non-carbohydrate component of dietary fiber), pectin, chitan, etc. Such fibers increase fecal bulk and speed up the passage of food through the digestive tract.
[20] Quinine, the commonly used drug to treat malaria, is obtained from a plant. What part of the plant yields the drug?
A.
Leaves
B.
Fruits
C.
Root
D.
Stem bark
Ans:
Stem bark
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
[21] To carry out photosynthesis plants require -
A.
Oxygen
B.
Carbon-dioxide
C.
Nitrogen
D.
Hydrogen
Ans:
Carbon-dioxide
Explanation :
In photosynthesis, carbon dioxide is converted into sugars in a process called carbon fixation. Carbon fixation is a redox reaction, so photosynthesis needs to supply both a source of energy to drive this process, and the electrons needed to convert carbon dioxide into a carbohydrate, which is a reduction reaction.
[22] The human heart is enclosed in the -
A.
Pericardium
B.
Pleura
C.
Duramater
D.
Conjunctive
Ans:
Pericardium
Explanation :
The pericardium is a double-walled sac containing the heart and the roots of the great vessels. It is a tough double layered membrane which covers the heart. The space between the two layers of it is filled with a pericardium fluid which protects the heart from any kind of external jerk or shock.
[23] Which of the following is an example of tissue?
A.
Brain
B.
Blood
C.
Liver
D.
Stomach
Ans:
Blood
Explanation :
Blood is considered a connective tissue for two basic reasons: (1) it has the same origin as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes. In circulating blood two different cell types are found: enucleated erythrocytes or red blood cells and nucleated leukocytes or white blood cells.
[24] The human skeleton contains around -
A.
110 bones
B.
210 bones
C.
150 bones
D.
206 bones
Ans:
206 bones
Explanation :
A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations
[25] Heavy alcohol consuming people generally die of -
A.
blood cancer
B.
cirrhosis
C.
liver or stomach cancer
D.
weakening of heart muscles leading to cardiac arrest
Ans:
cirrhosis
Explanation :
Cirrhosis is scarring of the liver and poor liver function. It is the final phase of chronic liver disease which may result from a history of excess drinking habits. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease.
Explanation :
In photosynthesis, carbon dioxide is converted into sugars in a process called carbon fixation. Carbon fixation is a redox reaction, so photosynthesis needs to supply both a source of energy to drive this process, and the electrons needed to convert carbon dioxide into a carbohydrate, which is a reduction reaction.
[22] The human heart is enclosed in the -
A.
Pericardium
B.
Pleura
C.
Duramater
D.
Conjunctive
Ans:
Pericardium
Explanation :
The pericardium is a double-walled sac containing the heart and the roots of the great vessels. It is a tough double layered membrane which covers the heart. The space between the two layers of it is filled with a pericardium fluid which protects the heart from any kind of external jerk or shock.
[23] Which of the following is an example of tissue?
A.
Brain
B.
Blood
C.
Liver
D.
Stomach
Ans:
Blood
Explanation :
Blood is considered a connective tissue for two basic reasons: (1) it has the same origin as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes. In circulating blood two different cell types are found: enucleated erythrocytes or red blood cells and nucleated leukocytes or white blood cells.
[24] The human skeleton contains around -
A.
110 bones
B.
210 bones
C.
150 bones
D.
206 bones
Ans:
206 bones
Explanation :
A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations
[25] Heavy alcohol consuming people generally die of -
A.
blood cancer
B.
cirrhosis
C.
liver or stomach cancer
D.
weakening of heart muscles leading to cardiac arrest
Ans:
cirrhosis
Explanation :
Cirrhosis is scarring of the liver and poor liver function. It is the final phase of chronic liver disease which may result from a history of excess drinking habits. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease.
Explanation :
Blood is considered a connective tissue for two basic reasons: (1) it has the same origin as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes. In circulating blood two different cell types are found: enucleated erythrocytes or red blood cells and nucleated leukocytes or white blood cells.
[24] The human skeleton contains around -
A.
110 bones
B.
210 bones
C.
150 bones
D.
206 bones
Ans:
206 bones
Explanation :
A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations
[25] Heavy alcohol consuming people generally die of -
A.
blood cancer
B.
cirrhosis
C.
liver or stomach cancer
D.
weakening of heart muscles leading to cardiac arrest
Ans:
cirrhosis
Explanation :
Cirrhosis is scarring of the liver and poor liver function. It is the final phase of chronic liver disease which may result from a history of excess drinking habits. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease.
Explanation :
Cirrhosis is scarring of the liver and poor liver function. It is the final phase of chronic liver disease which may result from a history of excess drinking habits. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease.