[1] The end product of the digestion of starch in the alimentary canal is —
A.
glucose
B.
galactose
C.
maltose
D.
isomaltose
Ans:
glucose
Explanation :
Starch or amylum is a carbohydrate consisting of a large number of glucose units joined by glycosidic bonds. Sugar from molasses or sugarcane, fruits or starch is first converted to glucose and fructose in presence of an enzyme called invertase.'
[2] The balance of CO2 and O2 in atmosphere is due to _.
A.
Transportation
B.
Photosynthesis
C.
Respiration
D.
Evaporation
Ans:
Photosynthesis
Explanation :
Photosynthesis takes in the carbon dioxide produced by all breathing organisms and reintroduces oxygen into the atmosphere.
[3] Bark of this tree is used as' a condiment -
A.
Cinnamon
B.
Clove
C.
Neem
D.
Palm
Ans:
Cinnamon
Explanation :
Cinnamon is a spice obtained from the inner bark of several trees from the genus Cinnamomum that is used in both sweet and savoury foods. The bark must be processed immediately after harvesting while still wet. Once processed, the bark will dry completely in four to six hours, provided that it is in a well - ventilated and relatively warm environment. Sri Lanka cinnamon has a very thin, smooth bark with a light-yellowish brown colour and a highly fragrant aroma.
[4] Synapse gap is present between which of the following?
A.
Two neurons
B.
Brain and Spinal Cord
C.
Two Kidneys
D.
None of these
Ans:
Two neurons
Explanation :
The gap between the two neurons is called the synapse. It is a structure that permits a neuron (or nerve cell) to pass an electrical or chemical signal to another neuron.
[5] The acid contained in vinegar is -
A.
Acetic acid
B.
Ascorbic acid
C.
Citric acid
D.
Tartaric acid
Ans:
Acetic acid
Explanation :
Table vinegar typically contains between 4 and 8 % acetic acid (ethanoic acid). Vinegar is a liquid consisting mainly of acetic acid (CH3COOH) and water. The acetic acid is produced by the fermentation of ethanol by acetic acid bacteria. It is mainly used as a cooking ingredient.
[6] Which one of the following is used to remove Astigmatism for a human eye?
A.
Concave lens
B.
Convex lens
C.
Cylindrical lens
D.
Prismatic lens
Ans:
Cylindrical lens
Explanation :
In Astigmatism, eye cannot see objects in two orthogonal directions clearly simultaneously. This abnormality is removed by using cylindrical lens.
[7] Besides carbohydrates, a major source of energy in our food is constituted by -
A.
Proteins
B.
Fats
C.
Minerals
D.
Vitamins
Ans:
Fats
Explanation :
Fats consist of a wide group of compounds that are generally soluble in organic solvents and generally insoluble in water. Chemically, fats are triglycerides, triesters of glycerol and any of several fatty acids. Fats provide a source of concentrated energy as well as the fat-soluble vitamins A, D, E and K. Fat transports these vital nutrients around the body. Fats or lipids are broken down in the body by enzymes called lipases produced in the pancreas. Examples of edible animal fats are lard, fish oil, butter/ghee and whale blubber.
[8] The limb bones of children become bent if there is deficiency of vitamin -
A.
A
B.
B1
C.
D
D.
E
Ans:
D
Explanation :
Rickets is weakness and deformity of the bones that occurs from lack of vitamin D. Vitamin D occurs in whole milk, butter, egg yolks, animal fats, and liver, especially fish liver oil. The body also makes its own vitamin D when sunlight shines on the skin. Children who do not eat enough foods with vitamin D, and who do not get enough sunlight, gradually develop signs of rickets. Rickets is fairly common in some countries, especially in cool mountain areas of Asia and Latin America where babies are kept inside and wrapped up. Rickets is also increasing in crowded cities where children are seldom taken into the sunlight.
[9] Which of the following diseases is NOT caused by the smog?
A.
Asthma
B.
Throat Cancer
C.
Emphysema
D.
Breathing problem
Ans:
Throat Cancer
Explanation :
Throat cancer can start in the oesophagus (food pipe), larynx (voice box), thyroid gland or cells lining the throat (squamous cells).
[10] Too much consumption of tea or coffee can result in deficiency of -
A.
Vitamin B12
B.
Calcium
C.
Vitamin C
D.
Albumin
Ans:
Calcium
Explanation :
0
[11] Deficiency of Vitamin B6 in men causes -
A.
rickets
B.
scurvy
C.
beri-beri
D.
anaemia
Ans:
anaemia
Explanation :
Vitamin B6 is a member of the B complex family of vitamins. Known as pyridoxine, its deficiency may lead to microcytic anemia (because pyridoxyl phosphate is the cofactor for heme synthesis), depression, dermatitis, high blood pressure (hypertension), water retention, and elevated levels of homocysteine. Vitamin B6 is found in a wide range of foods, including meat, poultiy, legumes, bananas and foods that are fortified with a supplemental form. Adults need 1.3 to 1.7 milligrams (mg) daily to meet their requirements.
[12] First successful heart, transplantation was done by -
A.
D.S. Paintal
B.
C.N. Barnard
C.
D. Shetty
D.
P. K. Sen
Ans:
C.N. Barnard
Explanation :
Christiaan Neethlirig Barnard was a South African cardiac surgeon who performed the world's first successful human-to-human heart transplant. He performed the world's first human heart transplant operation on 3 December 1967, in an operation assisted by his brother, Marius Barnard; the operation lasted nine hours and used a team of thirty people. The patient, Louis Washkansky, was a 54-year-old grocer, suffering from diabetes and incurable heart disease.
[13] Which among the following is also called as 'power house of the cell'?
A.
Plastids
B.
Mitochondria
C.
Golgi bodies
D.
Cell wall
Ans:
Mitochondria
Explanation :
The mitochondria is called the powerhouse of the cell because it is responsible for producing most of the cell's energy, or adenosine tri-phosphate (ATP).
[14] Which one of the following pairs belongs to cartilaginous fish?
A.
Shark and Tuna
B.
Shark and Ray
C.
Skates and Hilsa
D.
RayandEel
Ans:
Shark and Ray
Explanation :
Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a twochambered heart, and skeletons made of cartilage rather than bone. The cartilaginous fish are so named because their skeleton is composed of cartilage which is not reinforced by the minerals that make bone. It includes elasmobranchs: sharks, rays and skates, etc.
[15] Lac, which is used as sealing wax is produced by -
A.
stem
B.
root
C.
insect
D.
bird
Ans:
insect
Explanation :
Lac is the scarlet resinous secretion of a number of species of insects. There are several lac insects, some of which secrete highly pigmented wax. The Indian lac insect Laccifer lacca is important commercially.
[16] Which of the following is a mangroves flora?
A.
Spruce
B.
Moss
C.
Rhizophora
D.
Cypress
Ans:
Rhizophora
Explanation :
Rhizophora is a genus of tropical mangrove trees, sometimes collectively called true mangroves. The most notable species is the red mangrove (Rhizophora mangle) but some other species and a few natural hybrids are known.
[17] Which one of the following hormones contains iodine?
A.
Thyroxine
B.
Testosterone
C.
Insulin
D.
Adrenaline
Ans:
Thyroxine
Explanation :
Thyroxine hormone contains iodine. The thyroid gland produces two primary hormones - thyroxine (also referred to as T4) and tri-iodothyronine (also referred to as T3). The numbers 3 and 4 refer to the number of atoms of iodine in the hormones. Iodine is essential for the production of thyroid hormones. Iodine is found in most foods, especially seafood.
[18] What is the approximate time required for a heart-beat?
A.
0.5 second
B.
0.8 second
C.
0.5 minute
D.
1.0 minute
Ans:
0.8 second
Explanation :
The heart has an increasing rhythmic activity. It pumps blood by its contraction and relaxation. The contraction of the heart is called systole and the relaxation is called diastole. The contraction and relaxation together constitute the heart beat. The heart beats at the rate of 72 beats per minute. There are 3 main events in the cardiac cycle. Auricular Systole (Atrial Systole) phase involves the contraction of the 2 auricles, pushing the blood into the respective ventricles. The atrial systole takes 0.1 second. Ventricular Systole takes about 0.3 seconds. Ventricular systole is followed by ventricular diastole.
[19] Who discovered the Cholera-bacillus?
A.
Louis Pasteur
B.
Ronald Ross
C.
Robert Koch
D.
Joseph Lister
Ans:
Robert Koch
Explanation :
Robert Kach was a German physician. He became famous for isolating Bacillus anthracis (1877), the Tuberculosis bacillus (1882) and Vibrio cholerae (1883) and for his development of Koch’s postulates. He was awarded the Nobel Prize in Physiology or Medicine in 1905 for his tuberculosis findings. He is considered one of the founders of microbiology.
[20] Out of the following glands which is referred to as the master gland?
A.
Thyroid
B.
Adrenal gland
C.
Pituitary
D.
Pancreas
Ans:
Pituitary
Explanation :
The pituitary gland is a pea-sized gland located at the base of the skull between the optic nerves. The pituitary gland secretes hormones. Hormones are chemicals that travel through our blood stream. The pituitary is sometimes referred to as the “master gland” as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[21] Which of the following is most important for growth of children upto the age of 14?
A.
Proteins
B.
Vitamins
C.
Fats
D.
Milk
Ans:
Proteins
Explanation :
Proteins are very important for children as they help their body grow. Proteins are the source of amino acids, which are the building blocks of your child’s body. Amino acids help the development of muscle, bones, skin and various organs in children. The enzymes which are catalysts of body growth are proteins produced by the body. As children grow, their immune system also keeps improving and maturing. Proteins also play an important role in the working and development of the immune system. Many hormones which are important to regulate the behaviour of various body functions, are also proteins. For example, insulin is a protein.
[22] Which of the following is not required for seed germination’?
A.
Water
B.
Air
C.
Sunlight
D.
Suitable temperature
Ans:
Sunlight
Explanation :
Plants need sunlight to conduct the carbohydrate-making process called photosynthesis in their green leaves and stems. Seeds do not contain green pigment, but merely a dormant embryo. Seeds do not need to bask in sunlight to germinate. However, the warmth frorri sunlight can create a soil environment more, conducive for gemination. The requirements for seed germination vary among all plant species.
[23] Oxygen liberated during photosynthesis is coming from :
A.
Carbon dioxide
B.
Water
C.
Bresk down of chlorophy II
D.
Atmosphere
Ans:
Water
Explanation :
Photosynthetic oxygen evolution occurs via the light-dependent oxidation of water. Green plants utilize the light energy to split the water molecule to protons and electrons for photosynthesis. Free oxygen is generated as a by-product of this reaction and is released into the atmosphere.
[24] Which of the following is NOT included in the Technology Mission?
A.
Oil seeds
B.
Pulses
C.
Maize
D.
Vegetables
Ans:
Vegetables
Explanation :
The Technology Mission on Oilseeds was launched by the Central Government in 1986 to increase the production of oilseeds to reduce import and achieve self-sufficiency in edible oils. Subsequently, pulses, oil palm and maize were also brought within the purview of the Mission in 1990-91, 1992 and 1995-96 respectively.
[25] The normal temperature of the human body is -
A.
37°C
B.
37°F
C.
104°F
D.
36.8°C
Ans:
37°C
Explanation :
The “normal” body temperature of 98.6°F (37°C) is actually not so normal. Not everyone’s “normal” body temperature is the same. Yours could be a whole degree different than someone else’s. A German doctor in the 19th century set the standard at 98.6°F, but more recent studies say the baseline for most people is closer to 98.2°F.
Explanation :
Starch or amylum is a carbohydrate consisting of a large number of glucose units joined by glycosidic bonds. Sugar from molasses or sugarcane, fruits or starch is first converted to glucose and fructose in presence of an enzyme called invertase.'
[2] The balance of CO2 and O2 in atmosphere is due to _.
A.
Transportation
B.
Photosynthesis
C.
Respiration
D.
Evaporation
Ans:
Photosynthesis
Explanation :
Photosynthesis takes in the carbon dioxide produced by all breathing organisms and reintroduces oxygen into the atmosphere.
[3] Bark of this tree is used as' a condiment -
A.
Cinnamon
B.
Clove
C.
Neem
D.
Palm
Ans:
Cinnamon
Explanation :
Cinnamon is a spice obtained from the inner bark of several trees from the genus Cinnamomum that is used in both sweet and savoury foods. The bark must be processed immediately after harvesting while still wet. Once processed, the bark will dry completely in four to six hours, provided that it is in a well - ventilated and relatively warm environment. Sri Lanka cinnamon has a very thin, smooth bark with a light-yellowish brown colour and a highly fragrant aroma.
[4] Synapse gap is present between which of the following?
A.
Two neurons
B.
Brain and Spinal Cord
C.
Two Kidneys
D.
None of these
Ans:
Two neurons
Explanation :
The gap between the two neurons is called the synapse. It is a structure that permits a neuron (or nerve cell) to pass an electrical or chemical signal to another neuron.
[5] The acid contained in vinegar is -
A.
Acetic acid
B.
Ascorbic acid
C.
Citric acid
D.
Tartaric acid
Ans:
Acetic acid
Explanation :
Table vinegar typically contains between 4 and 8 % acetic acid (ethanoic acid). Vinegar is a liquid consisting mainly of acetic acid (CH3COOH) and water. The acetic acid is produced by the fermentation of ethanol by acetic acid bacteria. It is mainly used as a cooking ingredient.
[6] Which one of the following is used to remove Astigmatism for a human eye?
A.
Concave lens
B.
Convex lens
C.
Cylindrical lens
D.
Prismatic lens
Ans:
Cylindrical lens
Explanation :
In Astigmatism, eye cannot see objects in two orthogonal directions clearly simultaneously. This abnormality is removed by using cylindrical lens.
[7] Besides carbohydrates, a major source of energy in our food is constituted by -
A.
Proteins
B.
Fats
C.
Minerals
D.
Vitamins
Ans:
Fats
Explanation :
Fats consist of a wide group of compounds that are generally soluble in organic solvents and generally insoluble in water. Chemically, fats are triglycerides, triesters of glycerol and any of several fatty acids. Fats provide a source of concentrated energy as well as the fat-soluble vitamins A, D, E and K. Fat transports these vital nutrients around the body. Fats or lipids are broken down in the body by enzymes called lipases produced in the pancreas. Examples of edible animal fats are lard, fish oil, butter/ghee and whale blubber.
[8] The limb bones of children become bent if there is deficiency of vitamin -
A.
A
B.
B1
C.
D
D.
E
Ans:
D
Explanation :
Rickets is weakness and deformity of the bones that occurs from lack of vitamin D. Vitamin D occurs in whole milk, butter, egg yolks, animal fats, and liver, especially fish liver oil. The body also makes its own vitamin D when sunlight shines on the skin. Children who do not eat enough foods with vitamin D, and who do not get enough sunlight, gradually develop signs of rickets. Rickets is fairly common in some countries, especially in cool mountain areas of Asia and Latin America where babies are kept inside and wrapped up. Rickets is also increasing in crowded cities where children are seldom taken into the sunlight.
[9] Which of the following diseases is NOT caused by the smog?
A.
Asthma
B.
Throat Cancer
C.
Emphysema
D.
Breathing problem
Ans:
Throat Cancer
Explanation :
Throat cancer can start in the oesophagus (food pipe), larynx (voice box), thyroid gland or cells lining the throat (squamous cells).
[10] Too much consumption of tea or coffee can result in deficiency of -
A.
Vitamin B12
B.
Calcium
C.
Vitamin C
D.
Albumin
Ans:
Calcium
Explanation :
0
[11] Deficiency of Vitamin B6 in men causes -
A.
rickets
B.
scurvy
C.
beri-beri
D.
anaemia
Ans:
anaemia
Explanation :
Vitamin B6 is a member of the B complex family of vitamins. Known as pyridoxine, its deficiency may lead to microcytic anemia (because pyridoxyl phosphate is the cofactor for heme synthesis), depression, dermatitis, high blood pressure (hypertension), water retention, and elevated levels of homocysteine. Vitamin B6 is found in a wide range of foods, including meat, poultiy, legumes, bananas and foods that are fortified with a supplemental form. Adults need 1.3 to 1.7 milligrams (mg) daily to meet their requirements.
[12] First successful heart, transplantation was done by -
A.
D.S. Paintal
B.
C.N. Barnard
C.
D. Shetty
D.
P. K. Sen
Ans:
C.N. Barnard
Explanation :
Christiaan Neethlirig Barnard was a South African cardiac surgeon who performed the world's first successful human-to-human heart transplant. He performed the world's first human heart transplant operation on 3 December 1967, in an operation assisted by his brother, Marius Barnard; the operation lasted nine hours and used a team of thirty people. The patient, Louis Washkansky, was a 54-year-old grocer, suffering from diabetes and incurable heart disease.
[13] Which among the following is also called as 'power house of the cell'?
A.
Plastids
B.
Mitochondria
C.
Golgi bodies
D.
Cell wall
Ans:
Mitochondria
Explanation :
The mitochondria is called the powerhouse of the cell because it is responsible for producing most of the cell's energy, or adenosine tri-phosphate (ATP).
[14] Which one of the following pairs belongs to cartilaginous fish?
A.
Shark and Tuna
B.
Shark and Ray
C.
Skates and Hilsa
D.
RayandEel
Ans:
Shark and Ray
Explanation :
Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a twochambered heart, and skeletons made of cartilage rather than bone. The cartilaginous fish are so named because their skeleton is composed of cartilage which is not reinforced by the minerals that make bone. It includes elasmobranchs: sharks, rays and skates, etc.
[15] Lac, which is used as sealing wax is produced by -
A.
stem
B.
root
C.
insect
D.
bird
Ans:
insect
Explanation :
Lac is the scarlet resinous secretion of a number of species of insects. There are several lac insects, some of which secrete highly pigmented wax. The Indian lac insect Laccifer lacca is important commercially.
[16] Which of the following is a mangroves flora?
A.
Spruce
B.
Moss
C.
Rhizophora
D.
Cypress
Ans:
Rhizophora
Explanation :
Rhizophora is a genus of tropical mangrove trees, sometimes collectively called true mangroves. The most notable species is the red mangrove (Rhizophora mangle) but some other species and a few natural hybrids are known.
[17] Which one of the following hormones contains iodine?
A.
Thyroxine
B.
Testosterone
C.
Insulin
D.
Adrenaline
Ans:
Thyroxine
Explanation :
Thyroxine hormone contains iodine. The thyroid gland produces two primary hormones - thyroxine (also referred to as T4) and tri-iodothyronine (also referred to as T3). The numbers 3 and 4 refer to the number of atoms of iodine in the hormones. Iodine is essential for the production of thyroid hormones. Iodine is found in most foods, especially seafood.
[18] What is the approximate time required for a heart-beat?
A.
0.5 second
B.
0.8 second
C.
0.5 minute
D.
1.0 minute
Ans:
0.8 second
Explanation :
The heart has an increasing rhythmic activity. It pumps blood by its contraction and relaxation. The contraction of the heart is called systole and the relaxation is called diastole. The contraction and relaxation together constitute the heart beat. The heart beats at the rate of 72 beats per minute. There are 3 main events in the cardiac cycle. Auricular Systole (Atrial Systole) phase involves the contraction of the 2 auricles, pushing the blood into the respective ventricles. The atrial systole takes 0.1 second. Ventricular Systole takes about 0.3 seconds. Ventricular systole is followed by ventricular diastole.
[19] Who discovered the Cholera-bacillus?
A.
Louis Pasteur
B.
Ronald Ross
C.
Robert Koch
D.
Joseph Lister
Ans:
Robert Koch
Explanation :
Robert Kach was a German physician. He became famous for isolating Bacillus anthracis (1877), the Tuberculosis bacillus (1882) and Vibrio cholerae (1883) and for his development of Koch’s postulates. He was awarded the Nobel Prize in Physiology or Medicine in 1905 for his tuberculosis findings. He is considered one of the founders of microbiology.
[20] Out of the following glands which is referred to as the master gland?
A.
Thyroid
B.
Adrenal gland
C.
Pituitary
D.
Pancreas
Ans:
Pituitary
Explanation :
The pituitary gland is a pea-sized gland located at the base of the skull between the optic nerves. The pituitary gland secretes hormones. Hormones are chemicals that travel through our blood stream. The pituitary is sometimes referred to as the “master gland” as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[21] Which of the following is most important for growth of children upto the age of 14?
A.
Proteins
B.
Vitamins
C.
Fats
D.
Milk
Ans:
Proteins
Explanation :
Proteins are very important for children as they help their body grow. Proteins are the source of amino acids, which are the building blocks of your child’s body. Amino acids help the development of muscle, bones, skin and various organs in children. The enzymes which are catalysts of body growth are proteins produced by the body. As children grow, their immune system also keeps improving and maturing. Proteins also play an important role in the working and development of the immune system. Many hormones which are important to regulate the behaviour of various body functions, are also proteins. For example, insulin is a protein.
[22] Which of the following is not required for seed germination’?
A.
Water
B.
Air
C.
Sunlight
D.
Suitable temperature
Ans:
Sunlight
Explanation :
Plants need sunlight to conduct the carbohydrate-making process called photosynthesis in their green leaves and stems. Seeds do not contain green pigment, but merely a dormant embryo. Seeds do not need to bask in sunlight to germinate. However, the warmth frorri sunlight can create a soil environment more, conducive for gemination. The requirements for seed germination vary among all plant species.
[23] Oxygen liberated during photosynthesis is coming from :
A.
Carbon dioxide
B.
Water
C.
Bresk down of chlorophy II
D.
Atmosphere
Ans:
Water
Explanation :
Photosynthetic oxygen evolution occurs via the light-dependent oxidation of water. Green plants utilize the light energy to split the water molecule to protons and electrons for photosynthesis. Free oxygen is generated as a by-product of this reaction and is released into the atmosphere.
[24] Which of the following is NOT included in the Technology Mission?
A.
Oil seeds
B.
Pulses
C.
Maize
D.
Vegetables
Ans:
Vegetables
Explanation :
The Technology Mission on Oilseeds was launched by the Central Government in 1986 to increase the production of oilseeds to reduce import and achieve self-sufficiency in edible oils. Subsequently, pulses, oil palm and maize were also brought within the purview of the Mission in 1990-91, 1992 and 1995-96 respectively.
[25] The normal temperature of the human body is -
A.
37°C
B.
37°F
C.
104°F
D.
36.8°C
Ans:
37°C
Explanation :
The “normal” body temperature of 98.6°F (37°C) is actually not so normal. Not everyone’s “normal” body temperature is the same. Yours could be a whole degree different than someone else’s. A German doctor in the 19th century set the standard at 98.6°F, but more recent studies say the baseline for most people is closer to 98.2°F.
Explanation :
Cinnamon is a spice obtained from the inner bark of several trees from the genus Cinnamomum that is used in both sweet and savoury foods. The bark must be processed immediately after harvesting while still wet. Once processed, the bark will dry completely in four to six hours, provided that it is in a well - ventilated and relatively warm environment. Sri Lanka cinnamon has a very thin, smooth bark with a light-yellowish brown colour and a highly fragrant aroma.
[4] Synapse gap is present between which of the following?
A.
Two neurons
B.
Brain and Spinal Cord
C.
Two Kidneys
D.
None of these
Ans:
Two neurons
Explanation :
The gap between the two neurons is called the synapse. It is a structure that permits a neuron (or nerve cell) to pass an electrical or chemical signal to another neuron.
[5] The acid contained in vinegar is -
A.
Acetic acid
B.
Ascorbic acid
C.
Citric acid
D.
Tartaric acid
Ans:
Acetic acid
Explanation :
Table vinegar typically contains between 4 and 8 % acetic acid (ethanoic acid). Vinegar is a liquid consisting mainly of acetic acid (CH3COOH) and water. The acetic acid is produced by the fermentation of ethanol by acetic acid bacteria. It is mainly used as a cooking ingredient.
[6] Which one of the following is used to remove Astigmatism for a human eye?
A.
Concave lens
B.
Convex lens
C.
Cylindrical lens
D.
Prismatic lens
Ans:
Cylindrical lens
Explanation :
In Astigmatism, eye cannot see objects in two orthogonal directions clearly simultaneously. This abnormality is removed by using cylindrical lens.
[7] Besides carbohydrates, a major source of energy in our food is constituted by -
A.
Proteins
B.
Fats
C.
Minerals
D.
Vitamins
Ans:
Fats
Explanation :
Fats consist of a wide group of compounds that are generally soluble in organic solvents and generally insoluble in water. Chemically, fats are triglycerides, triesters of glycerol and any of several fatty acids. Fats provide a source of concentrated energy as well as the fat-soluble vitamins A, D, E and K. Fat transports these vital nutrients around the body. Fats or lipids are broken down in the body by enzymes called lipases produced in the pancreas. Examples of edible animal fats are lard, fish oil, butter/ghee and whale blubber.
[8] The limb bones of children become bent if there is deficiency of vitamin -
A.
A
B.
B1
C.
D
D.
E
Ans:
D
Explanation :
Rickets is weakness and deformity of the bones that occurs from lack of vitamin D. Vitamin D occurs in whole milk, butter, egg yolks, animal fats, and liver, especially fish liver oil. The body also makes its own vitamin D when sunlight shines on the skin. Children who do not eat enough foods with vitamin D, and who do not get enough sunlight, gradually develop signs of rickets. Rickets is fairly common in some countries, especially in cool mountain areas of Asia and Latin America where babies are kept inside and wrapped up. Rickets is also increasing in crowded cities where children are seldom taken into the sunlight.
[9] Which of the following diseases is NOT caused by the smog?
A.
Asthma
B.
Throat Cancer
C.
Emphysema
D.
Breathing problem
Ans:
Throat Cancer
Explanation :
Throat cancer can start in the oesophagus (food pipe), larynx (voice box), thyroid gland or cells lining the throat (squamous cells).
[10] Too much consumption of tea or coffee can result in deficiency of -
A.
Vitamin B12
B.
Calcium
C.
Vitamin C
D.
Albumin
Ans:
Calcium
Explanation :
0
[11] Deficiency of Vitamin B6 in men causes -
A.
rickets
B.
scurvy
C.
beri-beri
D.
anaemia
Ans:
anaemia
Explanation :
Vitamin B6 is a member of the B complex family of vitamins. Known as pyridoxine, its deficiency may lead to microcytic anemia (because pyridoxyl phosphate is the cofactor for heme synthesis), depression, dermatitis, high blood pressure (hypertension), water retention, and elevated levels of homocysteine. Vitamin B6 is found in a wide range of foods, including meat, poultiy, legumes, bananas and foods that are fortified with a supplemental form. Adults need 1.3 to 1.7 milligrams (mg) daily to meet their requirements.
[12] First successful heart, transplantation was done by -
A.
D.S. Paintal
B.
C.N. Barnard
C.
D. Shetty
D.
P. K. Sen
Ans:
C.N. Barnard
Explanation :
Christiaan Neethlirig Barnard was a South African cardiac surgeon who performed the world's first successful human-to-human heart transplant. He performed the world's first human heart transplant operation on 3 December 1967, in an operation assisted by his brother, Marius Barnard; the operation lasted nine hours and used a team of thirty people. The patient, Louis Washkansky, was a 54-year-old grocer, suffering from diabetes and incurable heart disease.
[13] Which among the following is also called as 'power house of the cell'?
A.
Plastids
B.
Mitochondria
C.
Golgi bodies
D.
Cell wall
Ans:
Mitochondria
Explanation :
The mitochondria is called the powerhouse of the cell because it is responsible for producing most of the cell's energy, or adenosine tri-phosphate (ATP).
[14] Which one of the following pairs belongs to cartilaginous fish?
A.
Shark and Tuna
B.
Shark and Ray
C.
Skates and Hilsa
D.
RayandEel
Ans:
Shark and Ray
Explanation :
Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a twochambered heart, and skeletons made of cartilage rather than bone. The cartilaginous fish are so named because their skeleton is composed of cartilage which is not reinforced by the minerals that make bone. It includes elasmobranchs: sharks, rays and skates, etc.
[15] Lac, which is used as sealing wax is produced by -
A.
stem
B.
root
C.
insect
D.
bird
Ans:
insect
Explanation :
Lac is the scarlet resinous secretion of a number of species of insects. There are several lac insects, some of which secrete highly pigmented wax. The Indian lac insect Laccifer lacca is important commercially.
[16] Which of the following is a mangroves flora?
A.
Spruce
B.
Moss
C.
Rhizophora
D.
Cypress
Ans:
Rhizophora
Explanation :
Rhizophora is a genus of tropical mangrove trees, sometimes collectively called true mangroves. The most notable species is the red mangrove (Rhizophora mangle) but some other species and a few natural hybrids are known.
[17] Which one of the following hormones contains iodine?
A.
Thyroxine
B.
Testosterone
C.
Insulin
D.
Adrenaline
Ans:
Thyroxine
Explanation :
Thyroxine hormone contains iodine. The thyroid gland produces two primary hormones - thyroxine (also referred to as T4) and tri-iodothyronine (also referred to as T3). The numbers 3 and 4 refer to the number of atoms of iodine in the hormones. Iodine is essential for the production of thyroid hormones. Iodine is found in most foods, especially seafood.
[18] What is the approximate time required for a heart-beat?
A.
0.5 second
B.
0.8 second
C.
0.5 minute
D.
1.0 minute
Ans:
0.8 second
Explanation :
The heart has an increasing rhythmic activity. It pumps blood by its contraction and relaxation. The contraction of the heart is called systole and the relaxation is called diastole. The contraction and relaxation together constitute the heart beat. The heart beats at the rate of 72 beats per minute. There are 3 main events in the cardiac cycle. Auricular Systole (Atrial Systole) phase involves the contraction of the 2 auricles, pushing the blood into the respective ventricles. The atrial systole takes 0.1 second. Ventricular Systole takes about 0.3 seconds. Ventricular systole is followed by ventricular diastole.
[19] Who discovered the Cholera-bacillus?
A.
Louis Pasteur
B.
Ronald Ross
C.
Robert Koch
D.
Joseph Lister
Ans:
Robert Koch
Explanation :
Robert Kach was a German physician. He became famous for isolating Bacillus anthracis (1877), the Tuberculosis bacillus (1882) and Vibrio cholerae (1883) and for his development of Koch’s postulates. He was awarded the Nobel Prize in Physiology or Medicine in 1905 for his tuberculosis findings. He is considered one of the founders of microbiology.
[20] Out of the following glands which is referred to as the master gland?
A.
Thyroid
B.
Adrenal gland
C.
Pituitary
D.
Pancreas
Ans:
Pituitary
Explanation :
The pituitary gland is a pea-sized gland located at the base of the skull between the optic nerves. The pituitary gland secretes hormones. Hormones are chemicals that travel through our blood stream. The pituitary is sometimes referred to as the “master gland” as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[21] Which of the following is most important for growth of children upto the age of 14?
A.
Proteins
B.
Vitamins
C.
Fats
D.
Milk
Ans:
Proteins
Explanation :
Proteins are very important for children as they help their body grow. Proteins are the source of amino acids, which are the building blocks of your child’s body. Amino acids help the development of muscle, bones, skin and various organs in children. The enzymes which are catalysts of body growth are proteins produced by the body. As children grow, their immune system also keeps improving and maturing. Proteins also play an important role in the working and development of the immune system. Many hormones which are important to regulate the behaviour of various body functions, are also proteins. For example, insulin is a protein.
[22] Which of the following is not required for seed germination’?
A.
Water
B.
Air
C.
Sunlight
D.
Suitable temperature
Ans:
Sunlight
Explanation :
Plants need sunlight to conduct the carbohydrate-making process called photosynthesis in their green leaves and stems. Seeds do not contain green pigment, but merely a dormant embryo. Seeds do not need to bask in sunlight to germinate. However, the warmth frorri sunlight can create a soil environment more, conducive for gemination. The requirements for seed germination vary among all plant species.
[23] Oxygen liberated during photosynthesis is coming from :
A.
Carbon dioxide
B.
Water
C.
Bresk down of chlorophy II
D.
Atmosphere
Ans:
Water
Explanation :
Photosynthetic oxygen evolution occurs via the light-dependent oxidation of water. Green plants utilize the light energy to split the water molecule to protons and electrons for photosynthesis. Free oxygen is generated as a by-product of this reaction and is released into the atmosphere.
[24] Which of the following is NOT included in the Technology Mission?
A.
Oil seeds
B.
Pulses
C.
Maize
D.
Vegetables
Ans:
Vegetables
Explanation :
The Technology Mission on Oilseeds was launched by the Central Government in 1986 to increase the production of oilseeds to reduce import and achieve self-sufficiency in edible oils. Subsequently, pulses, oil palm and maize were also brought within the purview of the Mission in 1990-91, 1992 and 1995-96 respectively.
[25] The normal temperature of the human body is -
A.
37°C
B.
37°F
C.
104°F
D.
36.8°C
Ans:
37°C
Explanation :
The “normal” body temperature of 98.6°F (37°C) is actually not so normal. Not everyone’s “normal” body temperature is the same. Yours could be a whole degree different than someone else’s. A German doctor in the 19th century set the standard at 98.6°F, but more recent studies say the baseline for most people is closer to 98.2°F.
Explanation :
Table vinegar typically contains between 4 and 8 % acetic acid (ethanoic acid). Vinegar is a liquid consisting mainly of acetic acid (CH3COOH) and water. The acetic acid is produced by the fermentation of ethanol by acetic acid bacteria. It is mainly used as a cooking ingredient.
[6] Which one of the following is used to remove Astigmatism for a human eye?
A.
Concave lens
B.
Convex lens
C.
Cylindrical lens
D.
Prismatic lens
Ans:
Cylindrical lens
Explanation :
In Astigmatism, eye cannot see objects in two orthogonal directions clearly simultaneously. This abnormality is removed by using cylindrical lens.
[7] Besides carbohydrates, a major source of energy in our food is constituted by -
A.
Proteins
B.
Fats
C.
Minerals
D.
Vitamins
Ans:
Fats
Explanation :
Fats consist of a wide group of compounds that are generally soluble in organic solvents and generally insoluble in water. Chemically, fats are triglycerides, triesters of glycerol and any of several fatty acids. Fats provide a source of concentrated energy as well as the fat-soluble vitamins A, D, E and K. Fat transports these vital nutrients around the body. Fats or lipids are broken down in the body by enzymes called lipases produced in the pancreas. Examples of edible animal fats are lard, fish oil, butter/ghee and whale blubber.
[8] The limb bones of children become bent if there is deficiency of vitamin -
A.
A
B.
B1
C.
D
D.
E
Ans:
D
Explanation :
Rickets is weakness and deformity of the bones that occurs from lack of vitamin D. Vitamin D occurs in whole milk, butter, egg yolks, animal fats, and liver, especially fish liver oil. The body also makes its own vitamin D when sunlight shines on the skin. Children who do not eat enough foods with vitamin D, and who do not get enough sunlight, gradually develop signs of rickets. Rickets is fairly common in some countries, especially in cool mountain areas of Asia and Latin America where babies are kept inside and wrapped up. Rickets is also increasing in crowded cities where children are seldom taken into the sunlight.
[9] Which of the following diseases is NOT caused by the smog?
A.
Asthma
B.
Throat Cancer
C.
Emphysema
D.
Breathing problem
Ans:
Throat Cancer
Explanation :
Throat cancer can start in the oesophagus (food pipe), larynx (voice box), thyroid gland or cells lining the throat (squamous cells).
[10] Too much consumption of tea or coffee can result in deficiency of -
A.
Vitamin B12
B.
Calcium
C.
Vitamin C
D.
Albumin
Ans:
Calcium
Explanation :
0
[11] Deficiency of Vitamin B6 in men causes -
A.
rickets
B.
scurvy
C.
beri-beri
D.
anaemia
Ans:
anaemia
Explanation :
Vitamin B6 is a member of the B complex family of vitamins. Known as pyridoxine, its deficiency may lead to microcytic anemia (because pyridoxyl phosphate is the cofactor for heme synthesis), depression, dermatitis, high blood pressure (hypertension), water retention, and elevated levels of homocysteine. Vitamin B6 is found in a wide range of foods, including meat, poultiy, legumes, bananas and foods that are fortified with a supplemental form. Adults need 1.3 to 1.7 milligrams (mg) daily to meet their requirements.
[12] First successful heart, transplantation was done by -
A.
D.S. Paintal
B.
C.N. Barnard
C.
D. Shetty
D.
P. K. Sen
Ans:
C.N. Barnard
Explanation :
Christiaan Neethlirig Barnard was a South African cardiac surgeon who performed the world's first successful human-to-human heart transplant. He performed the world's first human heart transplant operation on 3 December 1967, in an operation assisted by his brother, Marius Barnard; the operation lasted nine hours and used a team of thirty people. The patient, Louis Washkansky, was a 54-year-old grocer, suffering from diabetes and incurable heart disease.
[13] Which among the following is also called as 'power house of the cell'?
A.
Plastids
B.
Mitochondria
C.
Golgi bodies
D.
Cell wall
Ans:
Mitochondria
Explanation :
The mitochondria is called the powerhouse of the cell because it is responsible for producing most of the cell's energy, or adenosine tri-phosphate (ATP).
[14] Which one of the following pairs belongs to cartilaginous fish?
A.
Shark and Tuna
B.
Shark and Ray
C.
Skates and Hilsa
D.
RayandEel
Ans:
Shark and Ray
Explanation :
Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a twochambered heart, and skeletons made of cartilage rather than bone. The cartilaginous fish are so named because their skeleton is composed of cartilage which is not reinforced by the minerals that make bone. It includes elasmobranchs: sharks, rays and skates, etc.
[15] Lac, which is used as sealing wax is produced by -
A.
stem
B.
root
C.
insect
D.
bird
Ans:
insect
Explanation :
Lac is the scarlet resinous secretion of a number of species of insects. There are several lac insects, some of which secrete highly pigmented wax. The Indian lac insect Laccifer lacca is important commercially.
[16] Which of the following is a mangroves flora?
A.
Spruce
B.
Moss
C.
Rhizophora
D.
Cypress
Ans:
Rhizophora
Explanation :
Rhizophora is a genus of tropical mangrove trees, sometimes collectively called true mangroves. The most notable species is the red mangrove (Rhizophora mangle) but some other species and a few natural hybrids are known.
[17] Which one of the following hormones contains iodine?
A.
Thyroxine
B.
Testosterone
C.
Insulin
D.
Adrenaline
Ans:
Thyroxine
Explanation :
Thyroxine hormone contains iodine. The thyroid gland produces two primary hormones - thyroxine (also referred to as T4) and tri-iodothyronine (also referred to as T3). The numbers 3 and 4 refer to the number of atoms of iodine in the hormones. Iodine is essential for the production of thyroid hormones. Iodine is found in most foods, especially seafood.
[18] What is the approximate time required for a heart-beat?
A.
0.5 second
B.
0.8 second
C.
0.5 minute
D.
1.0 minute
Ans:
0.8 second
Explanation :
The heart has an increasing rhythmic activity. It pumps blood by its contraction and relaxation. The contraction of the heart is called systole and the relaxation is called diastole. The contraction and relaxation together constitute the heart beat. The heart beats at the rate of 72 beats per minute. There are 3 main events in the cardiac cycle. Auricular Systole (Atrial Systole) phase involves the contraction of the 2 auricles, pushing the blood into the respective ventricles. The atrial systole takes 0.1 second. Ventricular Systole takes about 0.3 seconds. Ventricular systole is followed by ventricular diastole.
[19] Who discovered the Cholera-bacillus?
A.
Louis Pasteur
B.
Ronald Ross
C.
Robert Koch
D.
Joseph Lister
Ans:
Robert Koch
Explanation :
Robert Kach was a German physician. He became famous for isolating Bacillus anthracis (1877), the Tuberculosis bacillus (1882) and Vibrio cholerae (1883) and for his development of Koch’s postulates. He was awarded the Nobel Prize in Physiology or Medicine in 1905 for his tuberculosis findings. He is considered one of the founders of microbiology.
[20] Out of the following glands which is referred to as the master gland?
A.
Thyroid
B.
Adrenal gland
C.
Pituitary
D.
Pancreas
Ans:
Pituitary
Explanation :
The pituitary gland is a pea-sized gland located at the base of the skull between the optic nerves. The pituitary gland secretes hormones. Hormones are chemicals that travel through our blood stream. The pituitary is sometimes referred to as the “master gland” as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[21] Which of the following is most important for growth of children upto the age of 14?
A.
Proteins
B.
Vitamins
C.
Fats
D.
Milk
Ans:
Proteins
Explanation :
Proteins are very important for children as they help their body grow. Proteins are the source of amino acids, which are the building blocks of your child’s body. Amino acids help the development of muscle, bones, skin and various organs in children. The enzymes which are catalysts of body growth are proteins produced by the body. As children grow, their immune system also keeps improving and maturing. Proteins also play an important role in the working and development of the immune system. Many hormones which are important to regulate the behaviour of various body functions, are also proteins. For example, insulin is a protein.
[22] Which of the following is not required for seed germination’?
A.
Water
B.
Air
C.
Sunlight
D.
Suitable temperature
Ans:
Sunlight
Explanation :
Plants need sunlight to conduct the carbohydrate-making process called photosynthesis in their green leaves and stems. Seeds do not contain green pigment, but merely a dormant embryo. Seeds do not need to bask in sunlight to germinate. However, the warmth frorri sunlight can create a soil environment more, conducive for gemination. The requirements for seed germination vary among all plant species.
[23] Oxygen liberated during photosynthesis is coming from :
A.
Carbon dioxide
B.
Water
C.
Bresk down of chlorophy II
D.
Atmosphere
Ans:
Water
Explanation :
Photosynthetic oxygen evolution occurs via the light-dependent oxidation of water. Green plants utilize the light energy to split the water molecule to protons and electrons for photosynthesis. Free oxygen is generated as a by-product of this reaction and is released into the atmosphere.
[24] Which of the following is NOT included in the Technology Mission?
A.
Oil seeds
B.
Pulses
C.
Maize
D.
Vegetables
Ans:
Vegetables
Explanation :
The Technology Mission on Oilseeds was launched by the Central Government in 1986 to increase the production of oilseeds to reduce import and achieve self-sufficiency in edible oils. Subsequently, pulses, oil palm and maize were also brought within the purview of the Mission in 1990-91, 1992 and 1995-96 respectively.
[25] The normal temperature of the human body is -
A.
37°C
B.
37°F
C.
104°F
D.
36.8°C
Ans:
37°C
Explanation :
The “normal” body temperature of 98.6°F (37°C) is actually not so normal. Not everyone’s “normal” body temperature is the same. Yours could be a whole degree different than someone else’s. A German doctor in the 19th century set the standard at 98.6°F, but more recent studies say the baseline for most people is closer to 98.2°F.
Explanation :
Fats consist of a wide group of compounds that are generally soluble in organic solvents and generally insoluble in water. Chemically, fats are triglycerides, triesters of glycerol and any of several fatty acids. Fats provide a source of concentrated energy as well as the fat-soluble vitamins A, D, E and K. Fat transports these vital nutrients around the body. Fats or lipids are broken down in the body by enzymes called lipases produced in the pancreas. Examples of edible animal fats are lard, fish oil, butter/ghee and whale blubber.
[8] The limb bones of children become bent if there is deficiency of vitamin -
A.
A
B.
B1
C.
D
D.
E
Ans:
D
Explanation :
Rickets is weakness and deformity of the bones that occurs from lack of vitamin D. Vitamin D occurs in whole milk, butter, egg yolks, animal fats, and liver, especially fish liver oil. The body also makes its own vitamin D when sunlight shines on the skin. Children who do not eat enough foods with vitamin D, and who do not get enough sunlight, gradually develop signs of rickets. Rickets is fairly common in some countries, especially in cool mountain areas of Asia and Latin America where babies are kept inside and wrapped up. Rickets is also increasing in crowded cities where children are seldom taken into the sunlight.
[9] Which of the following diseases is NOT caused by the smog?
A.
Asthma
B.
Throat Cancer
C.
Emphysema
D.
Breathing problem
Ans:
Throat Cancer
Explanation :
Throat cancer can start in the oesophagus (food pipe), larynx (voice box), thyroid gland or cells lining the throat (squamous cells).
[10] Too much consumption of tea or coffee can result in deficiency of -
A.
Vitamin B12
B.
Calcium
C.
Vitamin C
D.
Albumin
Ans:
Calcium
Explanation :
0
[11] Deficiency of Vitamin B6 in men causes -
A.
rickets
B.
scurvy
C.
beri-beri
D.
anaemia
Ans:
anaemia
Explanation :
Vitamin B6 is a member of the B complex family of vitamins. Known as pyridoxine, its deficiency may lead to microcytic anemia (because pyridoxyl phosphate is the cofactor for heme synthesis), depression, dermatitis, high blood pressure (hypertension), water retention, and elevated levels of homocysteine. Vitamin B6 is found in a wide range of foods, including meat, poultiy, legumes, bananas and foods that are fortified with a supplemental form. Adults need 1.3 to 1.7 milligrams (mg) daily to meet their requirements.
[12] First successful heart, transplantation was done by -
A.
D.S. Paintal
B.
C.N. Barnard
C.
D. Shetty
D.
P. K. Sen
Ans:
C.N. Barnard
Explanation :
Christiaan Neethlirig Barnard was a South African cardiac surgeon who performed the world's first successful human-to-human heart transplant. He performed the world's first human heart transplant operation on 3 December 1967, in an operation assisted by his brother, Marius Barnard; the operation lasted nine hours and used a team of thirty people. The patient, Louis Washkansky, was a 54-year-old grocer, suffering from diabetes and incurable heart disease.
[13] Which among the following is also called as 'power house of the cell'?
A.
Plastids
B.
Mitochondria
C.
Golgi bodies
D.
Cell wall
Ans:
Mitochondria
Explanation :
The mitochondria is called the powerhouse of the cell because it is responsible for producing most of the cell's energy, or adenosine tri-phosphate (ATP).
[14] Which one of the following pairs belongs to cartilaginous fish?
A.
Shark and Tuna
B.
Shark and Ray
C.
Skates and Hilsa
D.
RayandEel
Ans:
Shark and Ray
Explanation :
Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a twochambered heart, and skeletons made of cartilage rather than bone. The cartilaginous fish are so named because their skeleton is composed of cartilage which is not reinforced by the minerals that make bone. It includes elasmobranchs: sharks, rays and skates, etc.
[15] Lac, which is used as sealing wax is produced by -
A.
stem
B.
root
C.
insect
D.
bird
Ans:
insect
Explanation :
Lac is the scarlet resinous secretion of a number of species of insects. There are several lac insects, some of which secrete highly pigmented wax. The Indian lac insect Laccifer lacca is important commercially.
[16] Which of the following is a mangroves flora?
A.
Spruce
B.
Moss
C.
Rhizophora
D.
Cypress
Ans:
Rhizophora
Explanation :
Rhizophora is a genus of tropical mangrove trees, sometimes collectively called true mangroves. The most notable species is the red mangrove (Rhizophora mangle) but some other species and a few natural hybrids are known.
[17] Which one of the following hormones contains iodine?
A.
Thyroxine
B.
Testosterone
C.
Insulin
D.
Adrenaline
Ans:
Thyroxine
Explanation :
Thyroxine hormone contains iodine. The thyroid gland produces two primary hormones - thyroxine (also referred to as T4) and tri-iodothyronine (also referred to as T3). The numbers 3 and 4 refer to the number of atoms of iodine in the hormones. Iodine is essential for the production of thyroid hormones. Iodine is found in most foods, especially seafood.
[18] What is the approximate time required for a heart-beat?
A.
0.5 second
B.
0.8 second
C.
0.5 minute
D.
1.0 minute
Ans:
0.8 second
Explanation :
The heart has an increasing rhythmic activity. It pumps blood by its contraction and relaxation. The contraction of the heart is called systole and the relaxation is called diastole. The contraction and relaxation together constitute the heart beat. The heart beats at the rate of 72 beats per minute. There are 3 main events in the cardiac cycle. Auricular Systole (Atrial Systole) phase involves the contraction of the 2 auricles, pushing the blood into the respective ventricles. The atrial systole takes 0.1 second. Ventricular Systole takes about 0.3 seconds. Ventricular systole is followed by ventricular diastole.
[19] Who discovered the Cholera-bacillus?
A.
Louis Pasteur
B.
Ronald Ross
C.
Robert Koch
D.
Joseph Lister
Ans:
Robert Koch
Explanation :
Robert Kach was a German physician. He became famous for isolating Bacillus anthracis (1877), the Tuberculosis bacillus (1882) and Vibrio cholerae (1883) and for his development of Koch’s postulates. He was awarded the Nobel Prize in Physiology or Medicine in 1905 for his tuberculosis findings. He is considered one of the founders of microbiology.
[20] Out of the following glands which is referred to as the master gland?
A.
Thyroid
B.
Adrenal gland
C.
Pituitary
D.
Pancreas
Ans:
Pituitary
Explanation :
The pituitary gland is a pea-sized gland located at the base of the skull between the optic nerves. The pituitary gland secretes hormones. Hormones are chemicals that travel through our blood stream. The pituitary is sometimes referred to as the “master gland” as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[21] Which of the following is most important for growth of children upto the age of 14?
A.
Proteins
B.
Vitamins
C.
Fats
D.
Milk
Ans:
Proteins
Explanation :
Proteins are very important for children as they help their body grow. Proteins are the source of amino acids, which are the building blocks of your child’s body. Amino acids help the development of muscle, bones, skin and various organs in children. The enzymes which are catalysts of body growth are proteins produced by the body. As children grow, their immune system also keeps improving and maturing. Proteins also play an important role in the working and development of the immune system. Many hormones which are important to regulate the behaviour of various body functions, are also proteins. For example, insulin is a protein.
[22] Which of the following is not required for seed germination’?
A.
Water
B.
Air
C.
Sunlight
D.
Suitable temperature
Ans:
Sunlight
Explanation :
Plants need sunlight to conduct the carbohydrate-making process called photosynthesis in their green leaves and stems. Seeds do not contain green pigment, but merely a dormant embryo. Seeds do not need to bask in sunlight to germinate. However, the warmth frorri sunlight can create a soil environment more, conducive for gemination. The requirements for seed germination vary among all plant species.
[23] Oxygen liberated during photosynthesis is coming from :
A.
Carbon dioxide
B.
Water
C.
Bresk down of chlorophy II
D.
Atmosphere
Ans:
Water
Explanation :
Photosynthetic oxygen evolution occurs via the light-dependent oxidation of water. Green plants utilize the light energy to split the water molecule to protons and electrons for photosynthesis. Free oxygen is generated as a by-product of this reaction and is released into the atmosphere.
[24] Which of the following is NOT included in the Technology Mission?
A.
Oil seeds
B.
Pulses
C.
Maize
D.
Vegetables
Ans:
Vegetables
Explanation :
The Technology Mission on Oilseeds was launched by the Central Government in 1986 to increase the production of oilseeds to reduce import and achieve self-sufficiency in edible oils. Subsequently, pulses, oil palm and maize were also brought within the purview of the Mission in 1990-91, 1992 and 1995-96 respectively.
[25] The normal temperature of the human body is -
A.
37°C
B.
37°F
C.
104°F
D.
36.8°C
Ans:
37°C
Explanation :
The “normal” body temperature of 98.6°F (37°C) is actually not so normal. Not everyone’s “normal” body temperature is the same. Yours could be a whole degree different than someone else’s. A German doctor in the 19th century set the standard at 98.6°F, but more recent studies say the baseline for most people is closer to 98.2°F.
Explanation :
Throat cancer can start in the oesophagus (food pipe), larynx (voice box), thyroid gland or cells lining the throat (squamous cells).
[10] Too much consumption of tea or coffee can result in deficiency of -
A.
Vitamin B12
B.
Calcium
C.
Vitamin C
D.
Albumin
Ans:
Calcium
Explanation :
0
[11] Deficiency of Vitamin B6 in men causes -
A.
rickets
B.
scurvy
C.
beri-beri
D.
anaemia
Ans:
anaemia
Explanation :
Vitamin B6 is a member of the B complex family of vitamins. Known as pyridoxine, its deficiency may lead to microcytic anemia (because pyridoxyl phosphate is the cofactor for heme synthesis), depression, dermatitis, high blood pressure (hypertension), water retention, and elevated levels of homocysteine. Vitamin B6 is found in a wide range of foods, including meat, poultiy, legumes, bananas and foods that are fortified with a supplemental form. Adults need 1.3 to 1.7 milligrams (mg) daily to meet their requirements.
[12] First successful heart, transplantation was done by -
A.
D.S. Paintal
B.
C.N. Barnard
C.
D. Shetty
D.
P. K. Sen
Ans:
C.N. Barnard
Explanation :
Christiaan Neethlirig Barnard was a South African cardiac surgeon who performed the world's first successful human-to-human heart transplant. He performed the world's first human heart transplant operation on 3 December 1967, in an operation assisted by his brother, Marius Barnard; the operation lasted nine hours and used a team of thirty people. The patient, Louis Washkansky, was a 54-year-old grocer, suffering from diabetes and incurable heart disease.
[13] Which among the following is also called as 'power house of the cell'?
A.
Plastids
B.
Mitochondria
C.
Golgi bodies
D.
Cell wall
Ans:
Mitochondria
Explanation :
The mitochondria is called the powerhouse of the cell because it is responsible for producing most of the cell's energy, or adenosine tri-phosphate (ATP).
[14] Which one of the following pairs belongs to cartilaginous fish?
A.
Shark and Tuna
B.
Shark and Ray
C.
Skates and Hilsa
D.
RayandEel
Ans:
Shark and Ray
Explanation :
Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a twochambered heart, and skeletons made of cartilage rather than bone. The cartilaginous fish are so named because their skeleton is composed of cartilage which is not reinforced by the minerals that make bone. It includes elasmobranchs: sharks, rays and skates, etc.
[15] Lac, which is used as sealing wax is produced by -
A.
stem
B.
root
C.
insect
D.
bird
Ans:
insect
Explanation :
Lac is the scarlet resinous secretion of a number of species of insects. There are several lac insects, some of which secrete highly pigmented wax. The Indian lac insect Laccifer lacca is important commercially.
[16] Which of the following is a mangroves flora?
A.
Spruce
B.
Moss
C.
Rhizophora
D.
Cypress
Ans:
Rhizophora
Explanation :
Rhizophora is a genus of tropical mangrove trees, sometimes collectively called true mangroves. The most notable species is the red mangrove (Rhizophora mangle) but some other species and a few natural hybrids are known.
[17] Which one of the following hormones contains iodine?
A.
Thyroxine
B.
Testosterone
C.
Insulin
D.
Adrenaline
Ans:
Thyroxine
Explanation :
Thyroxine hormone contains iodine. The thyroid gland produces two primary hormones - thyroxine (also referred to as T4) and tri-iodothyronine (also referred to as T3). The numbers 3 and 4 refer to the number of atoms of iodine in the hormones. Iodine is essential for the production of thyroid hormones. Iodine is found in most foods, especially seafood.
[18] What is the approximate time required for a heart-beat?
A.
0.5 second
B.
0.8 second
C.
0.5 minute
D.
1.0 minute
Ans:
0.8 second
Explanation :
The heart has an increasing rhythmic activity. It pumps blood by its contraction and relaxation. The contraction of the heart is called systole and the relaxation is called diastole. The contraction and relaxation together constitute the heart beat. The heart beats at the rate of 72 beats per minute. There are 3 main events in the cardiac cycle. Auricular Systole (Atrial Systole) phase involves the contraction of the 2 auricles, pushing the blood into the respective ventricles. The atrial systole takes 0.1 second. Ventricular Systole takes about 0.3 seconds. Ventricular systole is followed by ventricular diastole.
[19] Who discovered the Cholera-bacillus?
A.
Louis Pasteur
B.
Ronald Ross
C.
Robert Koch
D.
Joseph Lister
Ans:
Robert Koch
Explanation :
Robert Kach was a German physician. He became famous for isolating Bacillus anthracis (1877), the Tuberculosis bacillus (1882) and Vibrio cholerae (1883) and for his development of Koch’s postulates. He was awarded the Nobel Prize in Physiology or Medicine in 1905 for his tuberculosis findings. He is considered one of the founders of microbiology.
[20] Out of the following glands which is referred to as the master gland?
A.
Thyroid
B.
Adrenal gland
C.
Pituitary
D.
Pancreas
Ans:
Pituitary
Explanation :
The pituitary gland is a pea-sized gland located at the base of the skull between the optic nerves. The pituitary gland secretes hormones. Hormones are chemicals that travel through our blood stream. The pituitary is sometimes referred to as the “master gland” as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[21] Which of the following is most important for growth of children upto the age of 14?
A.
Proteins
B.
Vitamins
C.
Fats
D.
Milk
Ans:
Proteins
Explanation :
Proteins are very important for children as they help their body grow. Proteins are the source of amino acids, which are the building blocks of your child’s body. Amino acids help the development of muscle, bones, skin and various organs in children. The enzymes which are catalysts of body growth are proteins produced by the body. As children grow, their immune system also keeps improving and maturing. Proteins also play an important role in the working and development of the immune system. Many hormones which are important to regulate the behaviour of various body functions, are also proteins. For example, insulin is a protein.
[22] Which of the following is not required for seed germination’?
A.
Water
B.
Air
C.
Sunlight
D.
Suitable temperature
Ans:
Sunlight
Explanation :
Plants need sunlight to conduct the carbohydrate-making process called photosynthesis in their green leaves and stems. Seeds do not contain green pigment, but merely a dormant embryo. Seeds do not need to bask in sunlight to germinate. However, the warmth frorri sunlight can create a soil environment more, conducive for gemination. The requirements for seed germination vary among all plant species.
[23] Oxygen liberated during photosynthesis is coming from :
A.
Carbon dioxide
B.
Water
C.
Bresk down of chlorophy II
D.
Atmosphere
Ans:
Water
Explanation :
Photosynthetic oxygen evolution occurs via the light-dependent oxidation of water. Green plants utilize the light energy to split the water molecule to protons and electrons for photosynthesis. Free oxygen is generated as a by-product of this reaction and is released into the atmosphere.
[24] Which of the following is NOT included in the Technology Mission?
A.
Oil seeds
B.
Pulses
C.
Maize
D.
Vegetables
Ans:
Vegetables
Explanation :
The Technology Mission on Oilseeds was launched by the Central Government in 1986 to increase the production of oilseeds to reduce import and achieve self-sufficiency in edible oils. Subsequently, pulses, oil palm and maize were also brought within the purview of the Mission in 1990-91, 1992 and 1995-96 respectively.
[25] The normal temperature of the human body is -
A.
37°C
B.
37°F
C.
104°F
D.
36.8°C
Ans:
37°C
Explanation :
The “normal” body temperature of 98.6°F (37°C) is actually not so normal. Not everyone’s “normal” body temperature is the same. Yours could be a whole degree different than someone else’s. A German doctor in the 19th century set the standard at 98.6°F, but more recent studies say the baseline for most people is closer to 98.2°F.
Explanation :
Vitamin B6 is a member of the B complex family of vitamins. Known as pyridoxine, its deficiency may lead to microcytic anemia (because pyridoxyl phosphate is the cofactor for heme synthesis), depression, dermatitis, high blood pressure (hypertension), water retention, and elevated levels of homocysteine. Vitamin B6 is found in a wide range of foods, including meat, poultiy, legumes, bananas and foods that are fortified with a supplemental form. Adults need 1.3 to 1.7 milligrams (mg) daily to meet their requirements.
[12] First successful heart, transplantation was done by -
A.
D.S. Paintal
B.
C.N. Barnard
C.
D. Shetty
D.
P. K. Sen
Ans:
C.N. Barnard
Explanation :
Christiaan Neethlirig Barnard was a South African cardiac surgeon who performed the world's first successful human-to-human heart transplant. He performed the world's first human heart transplant operation on 3 December 1967, in an operation assisted by his brother, Marius Barnard; the operation lasted nine hours and used a team of thirty people. The patient, Louis Washkansky, was a 54-year-old grocer, suffering from diabetes and incurable heart disease.
[13] Which among the following is also called as 'power house of the cell'?
A.
Plastids
B.
Mitochondria
C.
Golgi bodies
D.
Cell wall
Ans:
Mitochondria
Explanation :
The mitochondria is called the powerhouse of the cell because it is responsible for producing most of the cell's energy, or adenosine tri-phosphate (ATP).
[14] Which one of the following pairs belongs to cartilaginous fish?
A.
Shark and Tuna
B.
Shark and Ray
C.
Skates and Hilsa
D.
RayandEel
Ans:
Shark and Ray
Explanation :
Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a twochambered heart, and skeletons made of cartilage rather than bone. The cartilaginous fish are so named because their skeleton is composed of cartilage which is not reinforced by the minerals that make bone. It includes elasmobranchs: sharks, rays and skates, etc.
[15] Lac, which is used as sealing wax is produced by -
A.
stem
B.
root
C.
insect
D.
bird
Ans:
insect
Explanation :
Lac is the scarlet resinous secretion of a number of species of insects. There are several lac insects, some of which secrete highly pigmented wax. The Indian lac insect Laccifer lacca is important commercially.
[16] Which of the following is a mangroves flora?
A.
Spruce
B.
Moss
C.
Rhizophora
D.
Cypress
Ans:
Rhizophora
Explanation :
Rhizophora is a genus of tropical mangrove trees, sometimes collectively called true mangroves. The most notable species is the red mangrove (Rhizophora mangle) but some other species and a few natural hybrids are known.
[17] Which one of the following hormones contains iodine?
A.
Thyroxine
B.
Testosterone
C.
Insulin
D.
Adrenaline
Ans:
Thyroxine
Explanation :
Thyroxine hormone contains iodine. The thyroid gland produces two primary hormones - thyroxine (also referred to as T4) and tri-iodothyronine (also referred to as T3). The numbers 3 and 4 refer to the number of atoms of iodine in the hormones. Iodine is essential for the production of thyroid hormones. Iodine is found in most foods, especially seafood.
[18] What is the approximate time required for a heart-beat?
A.
0.5 second
B.
0.8 second
C.
0.5 minute
D.
1.0 minute
Ans:
0.8 second
Explanation :
The heart has an increasing rhythmic activity. It pumps blood by its contraction and relaxation. The contraction of the heart is called systole and the relaxation is called diastole. The contraction and relaxation together constitute the heart beat. The heart beats at the rate of 72 beats per minute. There are 3 main events in the cardiac cycle. Auricular Systole (Atrial Systole) phase involves the contraction of the 2 auricles, pushing the blood into the respective ventricles. The atrial systole takes 0.1 second. Ventricular Systole takes about 0.3 seconds. Ventricular systole is followed by ventricular diastole.
[19] Who discovered the Cholera-bacillus?
A.
Louis Pasteur
B.
Ronald Ross
C.
Robert Koch
D.
Joseph Lister
Ans:
Robert Koch
Explanation :
Robert Kach was a German physician. He became famous for isolating Bacillus anthracis (1877), the Tuberculosis bacillus (1882) and Vibrio cholerae (1883) and for his development of Koch’s postulates. He was awarded the Nobel Prize in Physiology or Medicine in 1905 for his tuberculosis findings. He is considered one of the founders of microbiology.
[20] Out of the following glands which is referred to as the master gland?
A.
Thyroid
B.
Adrenal gland
C.
Pituitary
D.
Pancreas
Ans:
Pituitary
Explanation :
The pituitary gland is a pea-sized gland located at the base of the skull between the optic nerves. The pituitary gland secretes hormones. Hormones are chemicals that travel through our blood stream. The pituitary is sometimes referred to as the “master gland” as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[21] Which of the following is most important for growth of children upto the age of 14?
A.
Proteins
B.
Vitamins
C.
Fats
D.
Milk
Ans:
Proteins
Explanation :
Proteins are very important for children as they help their body grow. Proteins are the source of amino acids, which are the building blocks of your child’s body. Amino acids help the development of muscle, bones, skin and various organs in children. The enzymes which are catalysts of body growth are proteins produced by the body. As children grow, their immune system also keeps improving and maturing. Proteins also play an important role in the working and development of the immune system. Many hormones which are important to regulate the behaviour of various body functions, are also proteins. For example, insulin is a protein.
[22] Which of the following is not required for seed germination’?
A.
Water
B.
Air
C.
Sunlight
D.
Suitable temperature
Ans:
Sunlight
Explanation :
Plants need sunlight to conduct the carbohydrate-making process called photosynthesis in their green leaves and stems. Seeds do not contain green pigment, but merely a dormant embryo. Seeds do not need to bask in sunlight to germinate. However, the warmth frorri sunlight can create a soil environment more, conducive for gemination. The requirements for seed germination vary among all plant species.
[23] Oxygen liberated during photosynthesis is coming from :
A.
Carbon dioxide
B.
Water
C.
Bresk down of chlorophy II
D.
Atmosphere
Ans:
Water
Explanation :
Photosynthetic oxygen evolution occurs via the light-dependent oxidation of water. Green plants utilize the light energy to split the water molecule to protons and electrons for photosynthesis. Free oxygen is generated as a by-product of this reaction and is released into the atmosphere.
[24] Which of the following is NOT included in the Technology Mission?
A.
Oil seeds
B.
Pulses
C.
Maize
D.
Vegetables
Ans:
Vegetables
Explanation :
The Technology Mission on Oilseeds was launched by the Central Government in 1986 to increase the production of oilseeds to reduce import and achieve self-sufficiency in edible oils. Subsequently, pulses, oil palm and maize were also brought within the purview of the Mission in 1990-91, 1992 and 1995-96 respectively.
[25] The normal temperature of the human body is -
A.
37°C
B.
37°F
C.
104°F
D.
36.8°C
Ans:
37°C
Explanation :
The “normal” body temperature of 98.6°F (37°C) is actually not so normal. Not everyone’s “normal” body temperature is the same. Yours could be a whole degree different than someone else’s. A German doctor in the 19th century set the standard at 98.6°F, but more recent studies say the baseline for most people is closer to 98.2°F.
Explanation :
The mitochondria is called the powerhouse of the cell because it is responsible for producing most of the cell's energy, or adenosine tri-phosphate (ATP).
[14] Which one of the following pairs belongs to cartilaginous fish?
A.
Shark and Tuna
B.
Shark and Ray
C.
Skates and Hilsa
D.
RayandEel
Ans:
Shark and Ray
Explanation :
Chondrichthyes or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a twochambered heart, and skeletons made of cartilage rather than bone. The cartilaginous fish are so named because their skeleton is composed of cartilage which is not reinforced by the minerals that make bone. It includes elasmobranchs: sharks, rays and skates, etc.
[15] Lac, which is used as sealing wax is produced by -
A.
stem
B.
root
C.
insect
D.
bird
Ans:
insect
Explanation :
Lac is the scarlet resinous secretion of a number of species of insects. There are several lac insects, some of which secrete highly pigmented wax. The Indian lac insect Laccifer lacca is important commercially.
[16] Which of the following is a mangroves flora?
A.
Spruce
B.
Moss
C.
Rhizophora
D.
Cypress
Ans:
Rhizophora
Explanation :
Rhizophora is a genus of tropical mangrove trees, sometimes collectively called true mangroves. The most notable species is the red mangrove (Rhizophora mangle) but some other species and a few natural hybrids are known.
[17] Which one of the following hormones contains iodine?
A.
Thyroxine
B.
Testosterone
C.
Insulin
D.
Adrenaline
Ans:
Thyroxine
Explanation :
Thyroxine hormone contains iodine. The thyroid gland produces two primary hormones - thyroxine (also referred to as T4) and tri-iodothyronine (also referred to as T3). The numbers 3 and 4 refer to the number of atoms of iodine in the hormones. Iodine is essential for the production of thyroid hormones. Iodine is found in most foods, especially seafood.
[18] What is the approximate time required for a heart-beat?
A.
0.5 second
B.
0.8 second
C.
0.5 minute
D.
1.0 minute
Ans:
0.8 second
Explanation :
The heart has an increasing rhythmic activity. It pumps blood by its contraction and relaxation. The contraction of the heart is called systole and the relaxation is called diastole. The contraction and relaxation together constitute the heart beat. The heart beats at the rate of 72 beats per minute. There are 3 main events in the cardiac cycle. Auricular Systole (Atrial Systole) phase involves the contraction of the 2 auricles, pushing the blood into the respective ventricles. The atrial systole takes 0.1 second. Ventricular Systole takes about 0.3 seconds. Ventricular systole is followed by ventricular diastole.
[19] Who discovered the Cholera-bacillus?
A.
Louis Pasteur
B.
Ronald Ross
C.
Robert Koch
D.
Joseph Lister
Ans:
Robert Koch
Explanation :
Robert Kach was a German physician. He became famous for isolating Bacillus anthracis (1877), the Tuberculosis bacillus (1882) and Vibrio cholerae (1883) and for his development of Koch’s postulates. He was awarded the Nobel Prize in Physiology or Medicine in 1905 for his tuberculosis findings. He is considered one of the founders of microbiology.
[20] Out of the following glands which is referred to as the master gland?
A.
Thyroid
B.
Adrenal gland
C.
Pituitary
D.
Pancreas
Ans:
Pituitary
Explanation :
The pituitary gland is a pea-sized gland located at the base of the skull between the optic nerves. The pituitary gland secretes hormones. Hormones are chemicals that travel through our blood stream. The pituitary is sometimes referred to as the “master gland” as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[21] Which of the following is most important for growth of children upto the age of 14?
A.
Proteins
B.
Vitamins
C.
Fats
D.
Milk
Ans:
Proteins
Explanation :
Proteins are very important for children as they help their body grow. Proteins are the source of amino acids, which are the building blocks of your child’s body. Amino acids help the development of muscle, bones, skin and various organs in children. The enzymes which are catalysts of body growth are proteins produced by the body. As children grow, their immune system also keeps improving and maturing. Proteins also play an important role in the working and development of the immune system. Many hormones which are important to regulate the behaviour of various body functions, are also proteins. For example, insulin is a protein.
[22] Which of the following is not required for seed germination’?
A.
Water
B.
Air
C.
Sunlight
D.
Suitable temperature
Ans:
Sunlight
Explanation :
Plants need sunlight to conduct the carbohydrate-making process called photosynthesis in their green leaves and stems. Seeds do not contain green pigment, but merely a dormant embryo. Seeds do not need to bask in sunlight to germinate. However, the warmth frorri sunlight can create a soil environment more, conducive for gemination. The requirements for seed germination vary among all plant species.
[23] Oxygen liberated during photosynthesis is coming from :
A.
Carbon dioxide
B.
Water
C.
Bresk down of chlorophy II
D.
Atmosphere
Ans:
Water
Explanation :
Photosynthetic oxygen evolution occurs via the light-dependent oxidation of water. Green plants utilize the light energy to split the water molecule to protons and electrons for photosynthesis. Free oxygen is generated as a by-product of this reaction and is released into the atmosphere.
[24] Which of the following is NOT included in the Technology Mission?
A.
Oil seeds
B.
Pulses
C.
Maize
D.
Vegetables
Ans:
Vegetables
Explanation :
The Technology Mission on Oilseeds was launched by the Central Government in 1986 to increase the production of oilseeds to reduce import and achieve self-sufficiency in edible oils. Subsequently, pulses, oil palm and maize were also brought within the purview of the Mission in 1990-91, 1992 and 1995-96 respectively.
[25] The normal temperature of the human body is -
A.
37°C
B.
37°F
C.
104°F
D.
36.8°C
Ans:
37°C
Explanation :
The “normal” body temperature of 98.6°F (37°C) is actually not so normal. Not everyone’s “normal” body temperature is the same. Yours could be a whole degree different than someone else’s. A German doctor in the 19th century set the standard at 98.6°F, but more recent studies say the baseline for most people is closer to 98.2°F.
Explanation :
Lac is the scarlet resinous secretion of a number of species of insects. There are several lac insects, some of which secrete highly pigmented wax. The Indian lac insect Laccifer lacca is important commercially.
[16] Which of the following is a mangroves flora?
A.
Spruce
B.
Moss
C.
Rhizophora
D.
Cypress
Ans:
Rhizophora
Explanation :
Rhizophora is a genus of tropical mangrove trees, sometimes collectively called true mangroves. The most notable species is the red mangrove (Rhizophora mangle) but some other species and a few natural hybrids are known.
[17] Which one of the following hormones contains iodine?
A.
Thyroxine
B.
Testosterone
C.
Insulin
D.
Adrenaline
Ans:
Thyroxine
Explanation :
Thyroxine hormone contains iodine. The thyroid gland produces two primary hormones - thyroxine (also referred to as T4) and tri-iodothyronine (also referred to as T3). The numbers 3 and 4 refer to the number of atoms of iodine in the hormones. Iodine is essential for the production of thyroid hormones. Iodine is found in most foods, especially seafood.
[18] What is the approximate time required for a heart-beat?
A.
0.5 second
B.
0.8 second
C.
0.5 minute
D.
1.0 minute
Ans:
0.8 second
Explanation :
The heart has an increasing rhythmic activity. It pumps blood by its contraction and relaxation. The contraction of the heart is called systole and the relaxation is called diastole. The contraction and relaxation together constitute the heart beat. The heart beats at the rate of 72 beats per minute. There are 3 main events in the cardiac cycle. Auricular Systole (Atrial Systole) phase involves the contraction of the 2 auricles, pushing the blood into the respective ventricles. The atrial systole takes 0.1 second. Ventricular Systole takes about 0.3 seconds. Ventricular systole is followed by ventricular diastole.
[19] Who discovered the Cholera-bacillus?
A.
Louis Pasteur
B.
Ronald Ross
C.
Robert Koch
D.
Joseph Lister
Ans:
Robert Koch
Explanation :
Robert Kach was a German physician. He became famous for isolating Bacillus anthracis (1877), the Tuberculosis bacillus (1882) and Vibrio cholerae (1883) and for his development of Koch’s postulates. He was awarded the Nobel Prize in Physiology or Medicine in 1905 for his tuberculosis findings. He is considered one of the founders of microbiology.
[20] Out of the following glands which is referred to as the master gland?
A.
Thyroid
B.
Adrenal gland
C.
Pituitary
D.
Pancreas
Ans:
Pituitary
Explanation :
The pituitary gland is a pea-sized gland located at the base of the skull between the optic nerves. The pituitary gland secretes hormones. Hormones are chemicals that travel through our blood stream. The pituitary is sometimes referred to as the “master gland” as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[21] Which of the following is most important for growth of children upto the age of 14?
A.
Proteins
B.
Vitamins
C.
Fats
D.
Milk
Ans:
Proteins
Explanation :
Proteins are very important for children as they help their body grow. Proteins are the source of amino acids, which are the building blocks of your child’s body. Amino acids help the development of muscle, bones, skin and various organs in children. The enzymes which are catalysts of body growth are proteins produced by the body. As children grow, their immune system also keeps improving and maturing. Proteins also play an important role in the working and development of the immune system. Many hormones which are important to regulate the behaviour of various body functions, are also proteins. For example, insulin is a protein.
[22] Which of the following is not required for seed germination’?
A.
Water
B.
Air
C.
Sunlight
D.
Suitable temperature
Ans:
Sunlight
Explanation :
Plants need sunlight to conduct the carbohydrate-making process called photosynthesis in their green leaves and stems. Seeds do not contain green pigment, but merely a dormant embryo. Seeds do not need to bask in sunlight to germinate. However, the warmth frorri sunlight can create a soil environment more, conducive for gemination. The requirements for seed germination vary among all plant species.
[23] Oxygen liberated during photosynthesis is coming from :
A.
Carbon dioxide
B.
Water
C.
Bresk down of chlorophy II
D.
Atmosphere
Ans:
Water
Explanation :
Photosynthetic oxygen evolution occurs via the light-dependent oxidation of water. Green plants utilize the light energy to split the water molecule to protons and electrons for photosynthesis. Free oxygen is generated as a by-product of this reaction and is released into the atmosphere.
[24] Which of the following is NOT included in the Technology Mission?
A.
Oil seeds
B.
Pulses
C.
Maize
D.
Vegetables
Ans:
Vegetables
Explanation :
The Technology Mission on Oilseeds was launched by the Central Government in 1986 to increase the production of oilseeds to reduce import and achieve self-sufficiency in edible oils. Subsequently, pulses, oil palm and maize were also brought within the purview of the Mission in 1990-91, 1992 and 1995-96 respectively.
[25] The normal temperature of the human body is -
A.
37°C
B.
37°F
C.
104°F
D.
36.8°C
Ans:
37°C
Explanation :
The “normal” body temperature of 98.6°F (37°C) is actually not so normal. Not everyone’s “normal” body temperature is the same. Yours could be a whole degree different than someone else’s. A German doctor in the 19th century set the standard at 98.6°F, but more recent studies say the baseline for most people is closer to 98.2°F.
Explanation :
Thyroxine hormone contains iodine. The thyroid gland produces two primary hormones - thyroxine (also referred to as T4) and tri-iodothyronine (also referred to as T3). The numbers 3 and 4 refer to the number of atoms of iodine in the hormones. Iodine is essential for the production of thyroid hormones. Iodine is found in most foods, especially seafood.
[18] What is the approximate time required for a heart-beat?
A.
0.5 second
B.
0.8 second
C.
0.5 minute
D.
1.0 minute
Ans:
0.8 second
Explanation :
The heart has an increasing rhythmic activity. It pumps blood by its contraction and relaxation. The contraction of the heart is called systole and the relaxation is called diastole. The contraction and relaxation together constitute the heart beat. The heart beats at the rate of 72 beats per minute. There are 3 main events in the cardiac cycle. Auricular Systole (Atrial Systole) phase involves the contraction of the 2 auricles, pushing the blood into the respective ventricles. The atrial systole takes 0.1 second. Ventricular Systole takes about 0.3 seconds. Ventricular systole is followed by ventricular diastole.
[19] Who discovered the Cholera-bacillus?
A.
Louis Pasteur
B.
Ronald Ross
C.
Robert Koch
D.
Joseph Lister
Ans:
Robert Koch
Explanation :
Robert Kach was a German physician. He became famous for isolating Bacillus anthracis (1877), the Tuberculosis bacillus (1882) and Vibrio cholerae (1883) and for his development of Koch’s postulates. He was awarded the Nobel Prize in Physiology or Medicine in 1905 for his tuberculosis findings. He is considered one of the founders of microbiology.
[20] Out of the following glands which is referred to as the master gland?
A.
Thyroid
B.
Adrenal gland
C.
Pituitary
D.
Pancreas
Ans:
Pituitary
Explanation :
The pituitary gland is a pea-sized gland located at the base of the skull between the optic nerves. The pituitary gland secretes hormones. Hormones are chemicals that travel through our blood stream. The pituitary is sometimes referred to as the “master gland” as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[21] Which of the following is most important for growth of children upto the age of 14?
A.
Proteins
B.
Vitamins
C.
Fats
D.
Milk
Ans:
Proteins
Explanation :
Proteins are very important for children as they help their body grow. Proteins are the source of amino acids, which are the building blocks of your child’s body. Amino acids help the development of muscle, bones, skin and various organs in children. The enzymes which are catalysts of body growth are proteins produced by the body. As children grow, their immune system also keeps improving and maturing. Proteins also play an important role in the working and development of the immune system. Many hormones which are important to regulate the behaviour of various body functions, are also proteins. For example, insulin is a protein.
[22] Which of the following is not required for seed germination’?
A.
Water
B.
Air
C.
Sunlight
D.
Suitable temperature
Ans:
Sunlight
Explanation :
Plants need sunlight to conduct the carbohydrate-making process called photosynthesis in their green leaves and stems. Seeds do not contain green pigment, but merely a dormant embryo. Seeds do not need to bask in sunlight to germinate. However, the warmth frorri sunlight can create a soil environment more, conducive for gemination. The requirements for seed germination vary among all plant species.
[23] Oxygen liberated during photosynthesis is coming from :
A.
Carbon dioxide
B.
Water
C.
Bresk down of chlorophy II
D.
Atmosphere
Ans:
Water
Explanation :
Photosynthetic oxygen evolution occurs via the light-dependent oxidation of water. Green plants utilize the light energy to split the water molecule to protons and electrons for photosynthesis. Free oxygen is generated as a by-product of this reaction and is released into the atmosphere.
[24] Which of the following is NOT included in the Technology Mission?
A.
Oil seeds
B.
Pulses
C.
Maize
D.
Vegetables
Ans:
Vegetables
Explanation :
The Technology Mission on Oilseeds was launched by the Central Government in 1986 to increase the production of oilseeds to reduce import and achieve self-sufficiency in edible oils. Subsequently, pulses, oil palm and maize were also brought within the purview of the Mission in 1990-91, 1992 and 1995-96 respectively.
[25] The normal temperature of the human body is -
A.
37°C
B.
37°F
C.
104°F
D.
36.8°C
Ans:
37°C
Explanation :
The “normal” body temperature of 98.6°F (37°C) is actually not so normal. Not everyone’s “normal” body temperature is the same. Yours could be a whole degree different than someone else’s. A German doctor in the 19th century set the standard at 98.6°F, but more recent studies say the baseline for most people is closer to 98.2°F.
Explanation :
Robert Kach was a German physician. He became famous for isolating Bacillus anthracis (1877), the Tuberculosis bacillus (1882) and Vibrio cholerae (1883) and for his development of Koch’s postulates. He was awarded the Nobel Prize in Physiology or Medicine in 1905 for his tuberculosis findings. He is considered one of the founders of microbiology.
[20] Out of the following glands which is referred to as the master gland?
A.
Thyroid
B.
Adrenal gland
C.
Pituitary
D.
Pancreas
Ans:
Pituitary
Explanation :
The pituitary gland is a pea-sized gland located at the base of the skull between the optic nerves. The pituitary gland secretes hormones. Hormones are chemicals that travel through our blood stream. The pituitary is sometimes referred to as the “master gland” as it controls hormone functions such as our temperature, thyroid activity, growth during childhood, urine production, testosterone production in males and ovulation and estrogen production in females. In effect the gland functions as our thermostat that controls all other glands that are responsible for hormone secretion.
[21] Which of the following is most important for growth of children upto the age of 14?
A.
Proteins
B.
Vitamins
C.
Fats
D.
Milk
Ans:
Proteins
Explanation :
Proteins are very important for children as they help their body grow. Proteins are the source of amino acids, which are the building blocks of your child’s body. Amino acids help the development of muscle, bones, skin and various organs in children. The enzymes which are catalysts of body growth are proteins produced by the body. As children grow, their immune system also keeps improving and maturing. Proteins also play an important role in the working and development of the immune system. Many hormones which are important to regulate the behaviour of various body functions, are also proteins. For example, insulin is a protein.
[22] Which of the following is not required for seed germination’?
A.
Water
B.
Air
C.
Sunlight
D.
Suitable temperature
Ans:
Sunlight
Explanation :
Plants need sunlight to conduct the carbohydrate-making process called photosynthesis in their green leaves and stems. Seeds do not contain green pigment, but merely a dormant embryo. Seeds do not need to bask in sunlight to germinate. However, the warmth frorri sunlight can create a soil environment more, conducive for gemination. The requirements for seed germination vary among all plant species.
[23] Oxygen liberated during photosynthesis is coming from :
A.
Carbon dioxide
B.
Water
C.
Bresk down of chlorophy II
D.
Atmosphere
Ans:
Water
Explanation :
Photosynthetic oxygen evolution occurs via the light-dependent oxidation of water. Green plants utilize the light energy to split the water molecule to protons and electrons for photosynthesis. Free oxygen is generated as a by-product of this reaction and is released into the atmosphere.
[24] Which of the following is NOT included in the Technology Mission?
A.
Oil seeds
B.
Pulses
C.
Maize
D.
Vegetables
Ans:
Vegetables
Explanation :
The Technology Mission on Oilseeds was launched by the Central Government in 1986 to increase the production of oilseeds to reduce import and achieve self-sufficiency in edible oils. Subsequently, pulses, oil palm and maize were also brought within the purview of the Mission in 1990-91, 1992 and 1995-96 respectively.
[25] The normal temperature of the human body is -
A.
37°C
B.
37°F
C.
104°F
D.
36.8°C
Ans:
37°C
Explanation :
The “normal” body temperature of 98.6°F (37°C) is actually not so normal. Not everyone’s “normal” body temperature is the same. Yours could be a whole degree different than someone else’s. A German doctor in the 19th century set the standard at 98.6°F, but more recent studies say the baseline for most people is closer to 98.2°F.
Explanation :
Proteins are very important for children as they help their body grow. Proteins are the source of amino acids, which are the building blocks of your child’s body. Amino acids help the development of muscle, bones, skin and various organs in children. The enzymes which are catalysts of body growth are proteins produced by the body. As children grow, their immune system also keeps improving and maturing. Proteins also play an important role in the working and development of the immune system. Many hormones which are important to regulate the behaviour of various body functions, are also proteins. For example, insulin is a protein.
[22] Which of the following is not required for seed germination’?
A.
Water
B.
Air
C.
Sunlight
D.
Suitable temperature
Ans:
Sunlight
Explanation :
Plants need sunlight to conduct the carbohydrate-making process called photosynthesis in their green leaves and stems. Seeds do not contain green pigment, but merely a dormant embryo. Seeds do not need to bask in sunlight to germinate. However, the warmth frorri sunlight can create a soil environment more, conducive for gemination. The requirements for seed germination vary among all plant species.
[23] Oxygen liberated during photosynthesis is coming from :
A.
Carbon dioxide
B.
Water
C.
Bresk down of chlorophy II
D.
Atmosphere
Ans:
Water
Explanation :
Photosynthetic oxygen evolution occurs via the light-dependent oxidation of water. Green plants utilize the light energy to split the water molecule to protons and electrons for photosynthesis. Free oxygen is generated as a by-product of this reaction and is released into the atmosphere.
[24] Which of the following is NOT included in the Technology Mission?
A.
Oil seeds
B.
Pulses
C.
Maize
D.
Vegetables
Ans:
Vegetables
Explanation :
The Technology Mission on Oilseeds was launched by the Central Government in 1986 to increase the production of oilseeds to reduce import and achieve self-sufficiency in edible oils. Subsequently, pulses, oil palm and maize were also brought within the purview of the Mission in 1990-91, 1992 and 1995-96 respectively.
[25] The normal temperature of the human body is -
A.
37°C
B.
37°F
C.
104°F
D.
36.8°C
Ans:
37°C
Explanation :
The “normal” body temperature of 98.6°F (37°C) is actually not so normal. Not everyone’s “normal” body temperature is the same. Yours could be a whole degree different than someone else’s. A German doctor in the 19th century set the standard at 98.6°F, but more recent studies say the baseline for most people is closer to 98.2°F.
Explanation :
Photosynthetic oxygen evolution occurs via the light-dependent oxidation of water. Green plants utilize the light energy to split the water molecule to protons and electrons for photosynthesis. Free oxygen is generated as a by-product of this reaction and is released into the atmosphere.
[24] Which of the following is NOT included in the Technology Mission?
A.
Oil seeds
B.
Pulses
C.
Maize
D.
Vegetables
Ans:
Vegetables
Explanation :
The Technology Mission on Oilseeds was launched by the Central Government in 1986 to increase the production of oilseeds to reduce import and achieve self-sufficiency in edible oils. Subsequently, pulses, oil palm and maize were also brought within the purview of the Mission in 1990-91, 1992 and 1995-96 respectively.
[25] The normal temperature of the human body is -
A.
37°C
B.
37°F
C.
104°F
D.
36.8°C
Ans:
37°C
Explanation :
The “normal” body temperature of 98.6°F (37°C) is actually not so normal. Not everyone’s “normal” body temperature is the same. Yours could be a whole degree different than someone else’s. A German doctor in the 19th century set the standard at 98.6°F, but more recent studies say the baseline for most people is closer to 98.2°F.
Explanation :
The “normal” body temperature of 98.6°F (37°C) is actually not so normal. Not everyone’s “normal” body temperature is the same. Yours could be a whole degree different than someone else’s. A German doctor in the 19th century set the standard at 98.6°F, but more recent studies say the baseline for most people is closer to 98.2°F.