[1] Which are not included in the milk teeth in a child of 3-4 years?
A.
Incisors
B.
Canines
C.
Molars
D.
Premolars
Ans:
Molars
Explanation :
Molars are the posterior most and most complicated kind of tooth in most mammals. The third, rearmost molar in each group is called a wisdom tooth. It is the last tooth to appear, breaking through the front of the gum at about the age of twenty.
[2] The red colour of human blood is due to -
A.
myoglobin
B.
hemoglobin
C.
immunoglobulin
D.
haptoglobin
Ans:
hemoglobin
Explanation :
Hemoglobin is the iron-containing oxygen-transport metalloprotein in the red blood cells of all vertebrates which carries oxygen from the respiratory organs to the rest of the body. It changes shape when it binds oxygen. When it changes shape, it absorbs different wavelengths of light, making it change color. When blood is exposed to air, much more of the hemoglobin absorbs oxygen than had in the vein the blood' came from. Therefore, the blood turns red.
[3] The functional unit of the kidney is -
A.
neuron
B.
glomerulus
C.
nephron
D.
ureter
Ans:
nephron
Explanation :
Nephron is the basic structural and functional unit of the kidney. Its chief function is to regulate the concentration of water and soluble substances like sodium salts by filtering the blood, reabsorbing what is needed and excreting the rest as urine. A nephron eliminates wastes from the body, regulates blood volume and blood pressure, controls levels of electrolytes and metabolites, and regulates blood pH.
[4] Which of the following causes Malaria?
A.
Insect
B.
Bacteria
C.
Protozoa
D.
Virus
Ans:
Protozoa
Explanation :
Malaria is caused by protozoan of the genus Plasmodium. There are several stages in the life cycle of Plasmodium, including sporozoites, merozoites, and gametocytes.
[5] Deposition of uric acid crystals at the joint is the cause of -
A.
Arthritis
B.
Osteoporosis
C.
Osteomalacia
D.
Rickets
Ans:
Arthritis
Explanation :
Gout is a medical condition usually characterized by recurrent attacks of acute inflammatory arthritis— a red, tender, hot, swollen joint. It is caused by elevated levels of uric acid in the blood. The uric acid crystallizes, and the crystals deposit in joints, tendons, and surrounding tissues.
[6] Which one of the following is an extinct animal?
A.
Passenger pigeon
B.
Mountain quail
C.
Pink-headed duck
D.
Ibis
Ans:
Passenger pigeon
Explanation :
The Passenger Pigeon or Wild Pigeon is an extinct North American bird. The species lived in enormous migratory flocks until the early 20th century, when hunting and habitat destruction led to its demise.
[7] From which one of the following is quinine extracted?
A.
Sarpagandha
B.
Opium
C.
Cinchona
D.
Datum
Ans:
Cinchona
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
[8] The colour change in the Chameleon is due to the presence of -
A.
Haemoglobin
B.
Chromatophore
C.
Chlorophyll
D.
Pneumatophore
Ans:
Chromatophore
Explanation :
Chameleons have specialized cells, chromatophores, which contain pigments in their cytoplasm, in three layers below their transparent outer skin. Dispersion of the pigment granules in the chromatophores sets the intensity of each color. When the pigment is equally distributed in a chromatophore, the whole cell is intensively colored. When the pigment is located only in the centre of the cell, the cell appears mainly transparent.
[9] The deficiency of iodine leads to -
A.
Hyperthyroidism
B.
Goitre
C.
Midgut
D.
Diabetes
Ans:
Goitre
Explanation :
A goitre or goiter is a swelling of the thyroid gland which can lead to a swelling of the neck or larynx (voice box). Goitre is a term that refers to an enlargement of the thyroid and can be associated with a thyroid gland that is functioning properly or not. Worldwide, over 90% cases of goitre are caused by iodine deficiency.
[10] Which of the following is biodegradable?
A.
Paper
B.
D. D. T
C.
Aluminium
D.
Plastic
Ans:
Paper
Explanation :
Paper is organic in nature as it is made from wood and put). So it is bio-degradable and useful in recycling.
[11] Blue-green algae are included in the group -
A.
Eubacteria
B.
Cyanobacteria
C.
Protozoa.
D.
Fungi
Ans:
Cyanobacteria
Explanation :
Cyanobacteria, also known as blue algae, are single celled and belong to the family of Prokaryotes. That means, they do not have a cell nucleus. The ability of cyanobacteria to perform oxygenic photosynthesis is thought to have converted the early reducing atmosphere into an oxidizing one, which dramatically changed the composition of life forms on Earth by stimulating biodiversity and leading to the near- extinction of oxygen-intolerant organisms.
[12] Haemoglobin contains the metal -
A.
Copper
B.
Molybdenum
C.
Iron
D.
Magnesium
Ans:
Iron
Explanation :
Haemoglobin is an iron-containing protein in red blood cells. It contains a haem prosthetic group that has an iron atom at its centre. When the iron is bound to oxygen, the haem group is red in colour (oxyhameoglobin), and when it lacks oxygen (deoxygenated form) it is blue-red.
[13] The most abundant enzyme in the living world is -
A.
Rubisco
B.
Invertase
C.
DNAse
D.
Zymase
Ans:
Rubisco
Explanation :
The abundant enzyme in the living world is Rubisco. It is a key regulator of non-steady state of photosynthesis.
[14] Mycobacterium leprae is a -
A.
Bacillus
B.
Coccus
C.
Spiral
D.
Spore
Ans:
Bacillus
Explanation :
Mycobacterium leprae is a bacterium that causes leprosy, also known as "Hansen's disease", which is a chronic infectious disease that damages the peripheral nerves and targets the skin, eyes, nose, and muscles.
[15] An insect is an organism having -
A.
3 pairs of legs
B.
4 pairs of legs
C.
Head, thorax and abdomen
D.
Pair of wings and antenna
Ans:
3 pairs of legs
Explanation :
An insect is an organism having three pairs of legs. Insects are small, land-dwelling arthropods, characterised by three pairs of jointed legs. It has three distinct body sections : the head, thorax and abdomen. It has one pair of antennae (comprising the scape, pedicel and flagellum), compound eyes and often one or two pairs of wings.
[16] Malaria is transmitted from one person to another by:
A.
Aedes Mosquito
B.
Culex Mosquito
C.
Anopheles Mosquito
D.
All of the above
Ans:
Anopheles Mosquito
Explanation :
Malaria is a mosquito-borne infectious disease which begins with a bite from an infected female Anopheles mosquito, which introduces the protists through saliva into the circulatory system. In the blood, the protists travel to the liver to mature and reproduce.
[17] Liver is a RICH source of -
A.
sugars
B.
fat soluble vitamins
C.
minerals
D.
proteins
Ans:
proteins
Explanation :
In general, liver is a good source of vitamin A, iron, zinc, copper and manganese, and a very good source of protein. There are twenty grams of protein in a single slice of liver.
[18] Cuscuta is a -
A.
Saprophyte
B.
Epiphyte
C.
Xerophyte
D.
Parasite
Ans:
Parasite
Explanation :
Cuseuta (dodder) is a genus of about 100-170 species of yellow, orange, or red parasitic plants. Dodder is parasitic on a very wide variety of plants, including a number of agricultural and horticultural crop species, such as alfalfa, lespedeza, flax, clover, potatoes, etc.
[19] The number of eggs normally released during one menstrual cycle is:
A.
3
B.
2
C.
1
D.
4
Ans:
4
Explanation :
In each menstrual cycle, rising levels of estrogen cause the ovary develop an egg and release it (ovulation). After ovulation, the egg lives for 24 hours.
[20] Vegetables and fruits should be a part of our diet because they stimulate -
A.
Peristalsis
B.
Salivation
C.
Excretion
D.
Respiration
Ans:
Peristalsis
Explanation :
Vegetable and fruits should be a part of our diet because they stimulate peristalsis.
[21] Insectivorous plants grow in soil deficient in -
A.
Calcium
B.
Nitrogen
C.
Magnesium
D.
Water
Ans:
Nitrogen
Explanation :
Insectivorous plants grow in soil deficient in nitrogen.
[22] RBCs do not perform aerobic respiration because these do not contain -
A.
Mitochondria
B.
Nucleus
C.
Endoplasmic Reticulum
D.
Lysosomes
Ans:
Mitochondria
Explanation :
Red Blood Corpusles (RBCs) do not contain Mitochondria.
[23] A cross between homozygous recessive and heterozygous plant is -
A.
Back cross
B.
Test cross
C.
Monohybrid cross
D.
Dihybrid cross
Ans:
Test cross
Explanation :
A cross between homozygous recessive and heterozygous plant is called Test Cross.
[24] Which of the following is not a gland?
A.
Thyroid
B.
Stomach
C.
Liver
D.
Pancreas
Ans:
Stomach
Explanation :
The stomach is a muscular, hollow, dilated part of the digestion system which functions as an important organ of the digestive tract in some animals, including vertebrates. It secretes protein-digesting enzymes called protease and strong acids to aid in food digestion.
[25] A person having blood type B could safely donate blood to persons with blood types -
A.
A and O
B.
B and O
C.
A and AB
D.
B and AB
Ans:
B and AB
Explanation :
If someone belongs to the blood group B, he has B antigens on the surface of his red blood cells and A antibodies in' his blood plasma. So he can donate blood to persons of B and AB blood groups, but cannot receive blood from persons having B or O groups.
Explanation :
Molars are the posterior most and most complicated kind of tooth in most mammals. The third, rearmost molar in each group is called a wisdom tooth. It is the last tooth to appear, breaking through the front of the gum at about the age of twenty.
[2] The red colour of human blood is due to -
A.
myoglobin
B.
hemoglobin
C.
immunoglobulin
D.
haptoglobin
Ans:
hemoglobin
Explanation :
Hemoglobin is the iron-containing oxygen-transport metalloprotein in the red blood cells of all vertebrates which carries oxygen from the respiratory organs to the rest of the body. It changes shape when it binds oxygen. When it changes shape, it absorbs different wavelengths of light, making it change color. When blood is exposed to air, much more of the hemoglobin absorbs oxygen than had in the vein the blood' came from. Therefore, the blood turns red.
[3] The functional unit of the kidney is -
A.
neuron
B.
glomerulus
C.
nephron
D.
ureter
Ans:
nephron
Explanation :
Nephron is the basic structural and functional unit of the kidney. Its chief function is to regulate the concentration of water and soluble substances like sodium salts by filtering the blood, reabsorbing what is needed and excreting the rest as urine. A nephron eliminates wastes from the body, regulates blood volume and blood pressure, controls levels of electrolytes and metabolites, and regulates blood pH.
[4] Which of the following causes Malaria?
A.
Insect
B.
Bacteria
C.
Protozoa
D.
Virus
Ans:
Protozoa
Explanation :
Malaria is caused by protozoan of the genus Plasmodium. There are several stages in the life cycle of Plasmodium, including sporozoites, merozoites, and gametocytes.
[5] Deposition of uric acid crystals at the joint is the cause of -
A.
Arthritis
B.
Osteoporosis
C.
Osteomalacia
D.
Rickets
Ans:
Arthritis
Explanation :
Gout is a medical condition usually characterized by recurrent attacks of acute inflammatory arthritis— a red, tender, hot, swollen joint. It is caused by elevated levels of uric acid in the blood. The uric acid crystallizes, and the crystals deposit in joints, tendons, and surrounding tissues.
[6] Which one of the following is an extinct animal?
A.
Passenger pigeon
B.
Mountain quail
C.
Pink-headed duck
D.
Ibis
Ans:
Passenger pigeon
Explanation :
The Passenger Pigeon or Wild Pigeon is an extinct North American bird. The species lived in enormous migratory flocks until the early 20th century, when hunting and habitat destruction led to its demise.
[7] From which one of the following is quinine extracted?
A.
Sarpagandha
B.
Opium
C.
Cinchona
D.
Datum
Ans:
Cinchona
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
[8] The colour change in the Chameleon is due to the presence of -
A.
Haemoglobin
B.
Chromatophore
C.
Chlorophyll
D.
Pneumatophore
Ans:
Chromatophore
Explanation :
Chameleons have specialized cells, chromatophores, which contain pigments in their cytoplasm, in three layers below their transparent outer skin. Dispersion of the pigment granules in the chromatophores sets the intensity of each color. When the pigment is equally distributed in a chromatophore, the whole cell is intensively colored. When the pigment is located only in the centre of the cell, the cell appears mainly transparent.
[9] The deficiency of iodine leads to -
A.
Hyperthyroidism
B.
Goitre
C.
Midgut
D.
Diabetes
Ans:
Goitre
Explanation :
A goitre or goiter is a swelling of the thyroid gland which can lead to a swelling of the neck or larynx (voice box). Goitre is a term that refers to an enlargement of the thyroid and can be associated with a thyroid gland that is functioning properly or not. Worldwide, over 90% cases of goitre are caused by iodine deficiency.
[10] Which of the following is biodegradable?
A.
Paper
B.
D. D. T
C.
Aluminium
D.
Plastic
Ans:
Paper
Explanation :
Paper is organic in nature as it is made from wood and put). So it is bio-degradable and useful in recycling.
[11] Blue-green algae are included in the group -
A.
Eubacteria
B.
Cyanobacteria
C.
Protozoa.
D.
Fungi
Ans:
Cyanobacteria
Explanation :
Cyanobacteria, also known as blue algae, are single celled and belong to the family of Prokaryotes. That means, they do not have a cell nucleus. The ability of cyanobacteria to perform oxygenic photosynthesis is thought to have converted the early reducing atmosphere into an oxidizing one, which dramatically changed the composition of life forms on Earth by stimulating biodiversity and leading to the near- extinction of oxygen-intolerant organisms.
[12] Haemoglobin contains the metal -
A.
Copper
B.
Molybdenum
C.
Iron
D.
Magnesium
Ans:
Iron
Explanation :
Haemoglobin is an iron-containing protein in red blood cells. It contains a haem prosthetic group that has an iron atom at its centre. When the iron is bound to oxygen, the haem group is red in colour (oxyhameoglobin), and when it lacks oxygen (deoxygenated form) it is blue-red.
[13] The most abundant enzyme in the living world is -
A.
Rubisco
B.
Invertase
C.
DNAse
D.
Zymase
Ans:
Rubisco
Explanation :
The abundant enzyme in the living world is Rubisco. It is a key regulator of non-steady state of photosynthesis.
[14] Mycobacterium leprae is a -
A.
Bacillus
B.
Coccus
C.
Spiral
D.
Spore
Ans:
Bacillus
Explanation :
Mycobacterium leprae is a bacterium that causes leprosy, also known as "Hansen's disease", which is a chronic infectious disease that damages the peripheral nerves and targets the skin, eyes, nose, and muscles.
[15] An insect is an organism having -
A.
3 pairs of legs
B.
4 pairs of legs
C.
Head, thorax and abdomen
D.
Pair of wings and antenna
Ans:
3 pairs of legs
Explanation :
An insect is an organism having three pairs of legs. Insects are small, land-dwelling arthropods, characterised by three pairs of jointed legs. It has three distinct body sections : the head, thorax and abdomen. It has one pair of antennae (comprising the scape, pedicel and flagellum), compound eyes and often one or two pairs of wings.
[16] Malaria is transmitted from one person to another by:
A.
Aedes Mosquito
B.
Culex Mosquito
C.
Anopheles Mosquito
D.
All of the above
Ans:
Anopheles Mosquito
Explanation :
Malaria is a mosquito-borne infectious disease which begins with a bite from an infected female Anopheles mosquito, which introduces the protists through saliva into the circulatory system. In the blood, the protists travel to the liver to mature and reproduce.
[17] Liver is a RICH source of -
A.
sugars
B.
fat soluble vitamins
C.
minerals
D.
proteins
Ans:
proteins
Explanation :
In general, liver is a good source of vitamin A, iron, zinc, copper and manganese, and a very good source of protein. There are twenty grams of protein in a single slice of liver.
[18] Cuscuta is a -
A.
Saprophyte
B.
Epiphyte
C.
Xerophyte
D.
Parasite
Ans:
Parasite
Explanation :
Cuseuta (dodder) is a genus of about 100-170 species of yellow, orange, or red parasitic plants. Dodder is parasitic on a very wide variety of plants, including a number of agricultural and horticultural crop species, such as alfalfa, lespedeza, flax, clover, potatoes, etc.
[19] The number of eggs normally released during one menstrual cycle is:
A.
3
B.
2
C.
1
D.
4
Ans:
4
Explanation :
In each menstrual cycle, rising levels of estrogen cause the ovary develop an egg and release it (ovulation). After ovulation, the egg lives for 24 hours.
[20] Vegetables and fruits should be a part of our diet because they stimulate -
A.
Peristalsis
B.
Salivation
C.
Excretion
D.
Respiration
Ans:
Peristalsis
Explanation :
Vegetable and fruits should be a part of our diet because they stimulate peristalsis.
[21] Insectivorous plants grow in soil deficient in -
A.
Calcium
B.
Nitrogen
C.
Magnesium
D.
Water
Ans:
Nitrogen
Explanation :
Insectivorous plants grow in soil deficient in nitrogen.
[22] RBCs do not perform aerobic respiration because these do not contain -
A.
Mitochondria
B.
Nucleus
C.
Endoplasmic Reticulum
D.
Lysosomes
Ans:
Mitochondria
Explanation :
Red Blood Corpusles (RBCs) do not contain Mitochondria.
[23] A cross between homozygous recessive and heterozygous plant is -
A.
Back cross
B.
Test cross
C.
Monohybrid cross
D.
Dihybrid cross
Ans:
Test cross
Explanation :
A cross between homozygous recessive and heterozygous plant is called Test Cross.
[24] Which of the following is not a gland?
A.
Thyroid
B.
Stomach
C.
Liver
D.
Pancreas
Ans:
Stomach
Explanation :
The stomach is a muscular, hollow, dilated part of the digestion system which functions as an important organ of the digestive tract in some animals, including vertebrates. It secretes protein-digesting enzymes called protease and strong acids to aid in food digestion.
[25] A person having blood type B could safely donate blood to persons with blood types -
A.
A and O
B.
B and O
C.
A and AB
D.
B and AB
Ans:
B and AB
Explanation :
If someone belongs to the blood group B, he has B antigens on the surface of his red blood cells and A antibodies in' his blood plasma. So he can donate blood to persons of B and AB blood groups, but cannot receive blood from persons having B or O groups.
Explanation :
Nephron is the basic structural and functional unit of the kidney. Its chief function is to regulate the concentration of water and soluble substances like sodium salts by filtering the blood, reabsorbing what is needed and excreting the rest as urine. A nephron eliminates wastes from the body, regulates blood volume and blood pressure, controls levels of electrolytes and metabolites, and regulates blood pH.
[4] Which of the following causes Malaria?
A.
Insect
B.
Bacteria
C.
Protozoa
D.
Virus
Ans:
Protozoa
Explanation :
Malaria is caused by protozoan of the genus Plasmodium. There are several stages in the life cycle of Plasmodium, including sporozoites, merozoites, and gametocytes.
[5] Deposition of uric acid crystals at the joint is the cause of -
A.
Arthritis
B.
Osteoporosis
C.
Osteomalacia
D.
Rickets
Ans:
Arthritis
Explanation :
Gout is a medical condition usually characterized by recurrent attacks of acute inflammatory arthritis— a red, tender, hot, swollen joint. It is caused by elevated levels of uric acid in the blood. The uric acid crystallizes, and the crystals deposit in joints, tendons, and surrounding tissues.
[6] Which one of the following is an extinct animal?
A.
Passenger pigeon
B.
Mountain quail
C.
Pink-headed duck
D.
Ibis
Ans:
Passenger pigeon
Explanation :
The Passenger Pigeon or Wild Pigeon is an extinct North American bird. The species lived in enormous migratory flocks until the early 20th century, when hunting and habitat destruction led to its demise.
[7] From which one of the following is quinine extracted?
A.
Sarpagandha
B.
Opium
C.
Cinchona
D.
Datum
Ans:
Cinchona
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
[8] The colour change in the Chameleon is due to the presence of -
A.
Haemoglobin
B.
Chromatophore
C.
Chlorophyll
D.
Pneumatophore
Ans:
Chromatophore
Explanation :
Chameleons have specialized cells, chromatophores, which contain pigments in their cytoplasm, in three layers below their transparent outer skin. Dispersion of the pigment granules in the chromatophores sets the intensity of each color. When the pigment is equally distributed in a chromatophore, the whole cell is intensively colored. When the pigment is located only in the centre of the cell, the cell appears mainly transparent.
[9] The deficiency of iodine leads to -
A.
Hyperthyroidism
B.
Goitre
C.
Midgut
D.
Diabetes
Ans:
Goitre
Explanation :
A goitre or goiter is a swelling of the thyroid gland which can lead to a swelling of the neck or larynx (voice box). Goitre is a term that refers to an enlargement of the thyroid and can be associated with a thyroid gland that is functioning properly or not. Worldwide, over 90% cases of goitre are caused by iodine deficiency.
[10] Which of the following is biodegradable?
A.
Paper
B.
D. D. T
C.
Aluminium
D.
Plastic
Ans:
Paper
Explanation :
Paper is organic in nature as it is made from wood and put). So it is bio-degradable and useful in recycling.
[11] Blue-green algae are included in the group -
A.
Eubacteria
B.
Cyanobacteria
C.
Protozoa.
D.
Fungi
Ans:
Cyanobacteria
Explanation :
Cyanobacteria, also known as blue algae, are single celled and belong to the family of Prokaryotes. That means, they do not have a cell nucleus. The ability of cyanobacteria to perform oxygenic photosynthesis is thought to have converted the early reducing atmosphere into an oxidizing one, which dramatically changed the composition of life forms on Earth by stimulating biodiversity and leading to the near- extinction of oxygen-intolerant organisms.
[12] Haemoglobin contains the metal -
A.
Copper
B.
Molybdenum
C.
Iron
D.
Magnesium
Ans:
Iron
Explanation :
Haemoglobin is an iron-containing protein in red blood cells. It contains a haem prosthetic group that has an iron atom at its centre. When the iron is bound to oxygen, the haem group is red in colour (oxyhameoglobin), and when it lacks oxygen (deoxygenated form) it is blue-red.
[13] The most abundant enzyme in the living world is -
A.
Rubisco
B.
Invertase
C.
DNAse
D.
Zymase
Ans:
Rubisco
Explanation :
The abundant enzyme in the living world is Rubisco. It is a key regulator of non-steady state of photosynthesis.
[14] Mycobacterium leprae is a -
A.
Bacillus
B.
Coccus
C.
Spiral
D.
Spore
Ans:
Bacillus
Explanation :
Mycobacterium leprae is a bacterium that causes leprosy, also known as "Hansen's disease", which is a chronic infectious disease that damages the peripheral nerves and targets the skin, eyes, nose, and muscles.
[15] An insect is an organism having -
A.
3 pairs of legs
B.
4 pairs of legs
C.
Head, thorax and abdomen
D.
Pair of wings and antenna
Ans:
3 pairs of legs
Explanation :
An insect is an organism having three pairs of legs. Insects are small, land-dwelling arthropods, characterised by three pairs of jointed legs. It has three distinct body sections : the head, thorax and abdomen. It has one pair of antennae (comprising the scape, pedicel and flagellum), compound eyes and often one or two pairs of wings.
[16] Malaria is transmitted from one person to another by:
A.
Aedes Mosquito
B.
Culex Mosquito
C.
Anopheles Mosquito
D.
All of the above
Ans:
Anopheles Mosquito
Explanation :
Malaria is a mosquito-borne infectious disease which begins with a bite from an infected female Anopheles mosquito, which introduces the protists through saliva into the circulatory system. In the blood, the protists travel to the liver to mature and reproduce.
[17] Liver is a RICH source of -
A.
sugars
B.
fat soluble vitamins
C.
minerals
D.
proteins
Ans:
proteins
Explanation :
In general, liver is a good source of vitamin A, iron, zinc, copper and manganese, and a very good source of protein. There are twenty grams of protein in a single slice of liver.
[18] Cuscuta is a -
A.
Saprophyte
B.
Epiphyte
C.
Xerophyte
D.
Parasite
Ans:
Parasite
Explanation :
Cuseuta (dodder) is a genus of about 100-170 species of yellow, orange, or red parasitic plants. Dodder is parasitic on a very wide variety of plants, including a number of agricultural and horticultural crop species, such as alfalfa, lespedeza, flax, clover, potatoes, etc.
[19] The number of eggs normally released during one menstrual cycle is:
A.
3
B.
2
C.
1
D.
4
Ans:
4
Explanation :
In each menstrual cycle, rising levels of estrogen cause the ovary develop an egg and release it (ovulation). After ovulation, the egg lives for 24 hours.
[20] Vegetables and fruits should be a part of our diet because they stimulate -
A.
Peristalsis
B.
Salivation
C.
Excretion
D.
Respiration
Ans:
Peristalsis
Explanation :
Vegetable and fruits should be a part of our diet because they stimulate peristalsis.
[21] Insectivorous plants grow in soil deficient in -
A.
Calcium
B.
Nitrogen
C.
Magnesium
D.
Water
Ans:
Nitrogen
Explanation :
Insectivorous plants grow in soil deficient in nitrogen.
[22] RBCs do not perform aerobic respiration because these do not contain -
A.
Mitochondria
B.
Nucleus
C.
Endoplasmic Reticulum
D.
Lysosomes
Ans:
Mitochondria
Explanation :
Red Blood Corpusles (RBCs) do not contain Mitochondria.
[23] A cross between homozygous recessive and heterozygous plant is -
A.
Back cross
B.
Test cross
C.
Monohybrid cross
D.
Dihybrid cross
Ans:
Test cross
Explanation :
A cross between homozygous recessive and heterozygous plant is called Test Cross.
[24] Which of the following is not a gland?
A.
Thyroid
B.
Stomach
C.
Liver
D.
Pancreas
Ans:
Stomach
Explanation :
The stomach is a muscular, hollow, dilated part of the digestion system which functions as an important organ of the digestive tract in some animals, including vertebrates. It secretes protein-digesting enzymes called protease and strong acids to aid in food digestion.
[25] A person having blood type B could safely donate blood to persons with blood types -
A.
A and O
B.
B and O
C.
A and AB
D.
B and AB
Ans:
B and AB
Explanation :
If someone belongs to the blood group B, he has B antigens on the surface of his red blood cells and A antibodies in' his blood plasma. So he can donate blood to persons of B and AB blood groups, but cannot receive blood from persons having B or O groups.
Explanation :
Gout is a medical condition usually characterized by recurrent attacks of acute inflammatory arthritis— a red, tender, hot, swollen joint. It is caused by elevated levels of uric acid in the blood. The uric acid crystallizes, and the crystals deposit in joints, tendons, and surrounding tissues.
[6] Which one of the following is an extinct animal?
A.
Passenger pigeon
B.
Mountain quail
C.
Pink-headed duck
D.
Ibis
Ans:
Passenger pigeon
Explanation :
The Passenger Pigeon or Wild Pigeon is an extinct North American bird. The species lived in enormous migratory flocks until the early 20th century, when hunting and habitat destruction led to its demise.
[7] From which one of the following is quinine extracted?
A.
Sarpagandha
B.
Opium
C.
Cinchona
D.
Datum
Ans:
Cinchona
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
[8] The colour change in the Chameleon is due to the presence of -
A.
Haemoglobin
B.
Chromatophore
C.
Chlorophyll
D.
Pneumatophore
Ans:
Chromatophore
Explanation :
Chameleons have specialized cells, chromatophores, which contain pigments in their cytoplasm, in three layers below their transparent outer skin. Dispersion of the pigment granules in the chromatophores sets the intensity of each color. When the pigment is equally distributed in a chromatophore, the whole cell is intensively colored. When the pigment is located only in the centre of the cell, the cell appears mainly transparent.
[9] The deficiency of iodine leads to -
A.
Hyperthyroidism
B.
Goitre
C.
Midgut
D.
Diabetes
Ans:
Goitre
Explanation :
A goitre or goiter is a swelling of the thyroid gland which can lead to a swelling of the neck or larynx (voice box). Goitre is a term that refers to an enlargement of the thyroid and can be associated with a thyroid gland that is functioning properly or not. Worldwide, over 90% cases of goitre are caused by iodine deficiency.
[10] Which of the following is biodegradable?
A.
Paper
B.
D. D. T
C.
Aluminium
D.
Plastic
Ans:
Paper
Explanation :
Paper is organic in nature as it is made from wood and put). So it is bio-degradable and useful in recycling.
[11] Blue-green algae are included in the group -
A.
Eubacteria
B.
Cyanobacteria
C.
Protozoa.
D.
Fungi
Ans:
Cyanobacteria
Explanation :
Cyanobacteria, also known as blue algae, are single celled and belong to the family of Prokaryotes. That means, they do not have a cell nucleus. The ability of cyanobacteria to perform oxygenic photosynthesis is thought to have converted the early reducing atmosphere into an oxidizing one, which dramatically changed the composition of life forms on Earth by stimulating biodiversity and leading to the near- extinction of oxygen-intolerant organisms.
[12] Haemoglobin contains the metal -
A.
Copper
B.
Molybdenum
C.
Iron
D.
Magnesium
Ans:
Iron
Explanation :
Haemoglobin is an iron-containing protein in red blood cells. It contains a haem prosthetic group that has an iron atom at its centre. When the iron is bound to oxygen, the haem group is red in colour (oxyhameoglobin), and when it lacks oxygen (deoxygenated form) it is blue-red.
[13] The most abundant enzyme in the living world is -
A.
Rubisco
B.
Invertase
C.
DNAse
D.
Zymase
Ans:
Rubisco
Explanation :
The abundant enzyme in the living world is Rubisco. It is a key regulator of non-steady state of photosynthesis.
[14] Mycobacterium leprae is a -
A.
Bacillus
B.
Coccus
C.
Spiral
D.
Spore
Ans:
Bacillus
Explanation :
Mycobacterium leprae is a bacterium that causes leprosy, also known as "Hansen's disease", which is a chronic infectious disease that damages the peripheral nerves and targets the skin, eyes, nose, and muscles.
[15] An insect is an organism having -
A.
3 pairs of legs
B.
4 pairs of legs
C.
Head, thorax and abdomen
D.
Pair of wings and antenna
Ans:
3 pairs of legs
Explanation :
An insect is an organism having three pairs of legs. Insects are small, land-dwelling arthropods, characterised by three pairs of jointed legs. It has three distinct body sections : the head, thorax and abdomen. It has one pair of antennae (comprising the scape, pedicel and flagellum), compound eyes and often one or two pairs of wings.
[16] Malaria is transmitted from one person to another by:
A.
Aedes Mosquito
B.
Culex Mosquito
C.
Anopheles Mosquito
D.
All of the above
Ans:
Anopheles Mosquito
Explanation :
Malaria is a mosquito-borne infectious disease which begins with a bite from an infected female Anopheles mosquito, which introduces the protists through saliva into the circulatory system. In the blood, the protists travel to the liver to mature and reproduce.
[17] Liver is a RICH source of -
A.
sugars
B.
fat soluble vitamins
C.
minerals
D.
proteins
Ans:
proteins
Explanation :
In general, liver is a good source of vitamin A, iron, zinc, copper and manganese, and a very good source of protein. There are twenty grams of protein in a single slice of liver.
[18] Cuscuta is a -
A.
Saprophyte
B.
Epiphyte
C.
Xerophyte
D.
Parasite
Ans:
Parasite
Explanation :
Cuseuta (dodder) is a genus of about 100-170 species of yellow, orange, or red parasitic plants. Dodder is parasitic on a very wide variety of plants, including a number of agricultural and horticultural crop species, such as alfalfa, lespedeza, flax, clover, potatoes, etc.
[19] The number of eggs normally released during one menstrual cycle is:
A.
3
B.
2
C.
1
D.
4
Ans:
4
Explanation :
In each menstrual cycle, rising levels of estrogen cause the ovary develop an egg and release it (ovulation). After ovulation, the egg lives for 24 hours.
[20] Vegetables and fruits should be a part of our diet because they stimulate -
A.
Peristalsis
B.
Salivation
C.
Excretion
D.
Respiration
Ans:
Peristalsis
Explanation :
Vegetable and fruits should be a part of our diet because they stimulate peristalsis.
[21] Insectivorous plants grow in soil deficient in -
A.
Calcium
B.
Nitrogen
C.
Magnesium
D.
Water
Ans:
Nitrogen
Explanation :
Insectivorous plants grow in soil deficient in nitrogen.
[22] RBCs do not perform aerobic respiration because these do not contain -
A.
Mitochondria
B.
Nucleus
C.
Endoplasmic Reticulum
D.
Lysosomes
Ans:
Mitochondria
Explanation :
Red Blood Corpusles (RBCs) do not contain Mitochondria.
[23] A cross between homozygous recessive and heterozygous plant is -
A.
Back cross
B.
Test cross
C.
Monohybrid cross
D.
Dihybrid cross
Ans:
Test cross
Explanation :
A cross between homozygous recessive and heterozygous plant is called Test Cross.
[24] Which of the following is not a gland?
A.
Thyroid
B.
Stomach
C.
Liver
D.
Pancreas
Ans:
Stomach
Explanation :
The stomach is a muscular, hollow, dilated part of the digestion system which functions as an important organ of the digestive tract in some animals, including vertebrates. It secretes protein-digesting enzymes called protease and strong acids to aid in food digestion.
[25] A person having blood type B could safely donate blood to persons with blood types -
A.
A and O
B.
B and O
C.
A and AB
D.
B and AB
Ans:
B and AB
Explanation :
If someone belongs to the blood group B, he has B antigens on the surface of his red blood cells and A antibodies in' his blood plasma. So he can donate blood to persons of B and AB blood groups, but cannot receive blood from persons having B or O groups.
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
[8] The colour change in the Chameleon is due to the presence of -
A.
Haemoglobin
B.
Chromatophore
C.
Chlorophyll
D.
Pneumatophore
Ans:
Chromatophore
Explanation :
Chameleons have specialized cells, chromatophores, which contain pigments in their cytoplasm, in three layers below their transparent outer skin. Dispersion of the pigment granules in the chromatophores sets the intensity of each color. When the pigment is equally distributed in a chromatophore, the whole cell is intensively colored. When the pigment is located only in the centre of the cell, the cell appears mainly transparent.
[9] The deficiency of iodine leads to -
A.
Hyperthyroidism
B.
Goitre
C.
Midgut
D.
Diabetes
Ans:
Goitre
Explanation :
A goitre or goiter is a swelling of the thyroid gland which can lead to a swelling of the neck or larynx (voice box). Goitre is a term that refers to an enlargement of the thyroid and can be associated with a thyroid gland that is functioning properly or not. Worldwide, over 90% cases of goitre are caused by iodine deficiency.
[10] Which of the following is biodegradable?
A.
Paper
B.
D. D. T
C.
Aluminium
D.
Plastic
Ans:
Paper
Explanation :
Paper is organic in nature as it is made from wood and put). So it is bio-degradable and useful in recycling.
[11] Blue-green algae are included in the group -
A.
Eubacteria
B.
Cyanobacteria
C.
Protozoa.
D.
Fungi
Ans:
Cyanobacteria
Explanation :
Cyanobacteria, also known as blue algae, are single celled and belong to the family of Prokaryotes. That means, they do not have a cell nucleus. The ability of cyanobacteria to perform oxygenic photosynthesis is thought to have converted the early reducing atmosphere into an oxidizing one, which dramatically changed the composition of life forms on Earth by stimulating biodiversity and leading to the near- extinction of oxygen-intolerant organisms.
[12] Haemoglobin contains the metal -
A.
Copper
B.
Molybdenum
C.
Iron
D.
Magnesium
Ans:
Iron
Explanation :
Haemoglobin is an iron-containing protein in red blood cells. It contains a haem prosthetic group that has an iron atom at its centre. When the iron is bound to oxygen, the haem group is red in colour (oxyhameoglobin), and when it lacks oxygen (deoxygenated form) it is blue-red.
[13] The most abundant enzyme in the living world is -
A.
Rubisco
B.
Invertase
C.
DNAse
D.
Zymase
Ans:
Rubisco
Explanation :
The abundant enzyme in the living world is Rubisco. It is a key regulator of non-steady state of photosynthesis.
[14] Mycobacterium leprae is a -
A.
Bacillus
B.
Coccus
C.
Spiral
D.
Spore
Ans:
Bacillus
Explanation :
Mycobacterium leprae is a bacterium that causes leprosy, also known as "Hansen's disease", which is a chronic infectious disease that damages the peripheral nerves and targets the skin, eyes, nose, and muscles.
[15] An insect is an organism having -
A.
3 pairs of legs
B.
4 pairs of legs
C.
Head, thorax and abdomen
D.
Pair of wings and antenna
Ans:
3 pairs of legs
Explanation :
An insect is an organism having three pairs of legs. Insects are small, land-dwelling arthropods, characterised by three pairs of jointed legs. It has three distinct body sections : the head, thorax and abdomen. It has one pair of antennae (comprising the scape, pedicel and flagellum), compound eyes and often one or two pairs of wings.
[16] Malaria is transmitted from one person to another by:
A.
Aedes Mosquito
B.
Culex Mosquito
C.
Anopheles Mosquito
D.
All of the above
Ans:
Anopheles Mosquito
Explanation :
Malaria is a mosquito-borne infectious disease which begins with a bite from an infected female Anopheles mosquito, which introduces the protists through saliva into the circulatory system. In the blood, the protists travel to the liver to mature and reproduce.
[17] Liver is a RICH source of -
A.
sugars
B.
fat soluble vitamins
C.
minerals
D.
proteins
Ans:
proteins
Explanation :
In general, liver is a good source of vitamin A, iron, zinc, copper and manganese, and a very good source of protein. There are twenty grams of protein in a single slice of liver.
[18] Cuscuta is a -
A.
Saprophyte
B.
Epiphyte
C.
Xerophyte
D.
Parasite
Ans:
Parasite
Explanation :
Cuseuta (dodder) is a genus of about 100-170 species of yellow, orange, or red parasitic plants. Dodder is parasitic on a very wide variety of plants, including a number of agricultural and horticultural crop species, such as alfalfa, lespedeza, flax, clover, potatoes, etc.
[19] The number of eggs normally released during one menstrual cycle is:
A.
3
B.
2
C.
1
D.
4
Ans:
4
Explanation :
In each menstrual cycle, rising levels of estrogen cause the ovary develop an egg and release it (ovulation). After ovulation, the egg lives for 24 hours.
[20] Vegetables and fruits should be a part of our diet because they stimulate -
A.
Peristalsis
B.
Salivation
C.
Excretion
D.
Respiration
Ans:
Peristalsis
Explanation :
Vegetable and fruits should be a part of our diet because they stimulate peristalsis.
[21] Insectivorous plants grow in soil deficient in -
A.
Calcium
B.
Nitrogen
C.
Magnesium
D.
Water
Ans:
Nitrogen
Explanation :
Insectivorous plants grow in soil deficient in nitrogen.
[22] RBCs do not perform aerobic respiration because these do not contain -
A.
Mitochondria
B.
Nucleus
C.
Endoplasmic Reticulum
D.
Lysosomes
Ans:
Mitochondria
Explanation :
Red Blood Corpusles (RBCs) do not contain Mitochondria.
[23] A cross between homozygous recessive and heterozygous plant is -
A.
Back cross
B.
Test cross
C.
Monohybrid cross
D.
Dihybrid cross
Ans:
Test cross
Explanation :
A cross between homozygous recessive and heterozygous plant is called Test Cross.
[24] Which of the following is not a gland?
A.
Thyroid
B.
Stomach
C.
Liver
D.
Pancreas
Ans:
Stomach
Explanation :
The stomach is a muscular, hollow, dilated part of the digestion system which functions as an important organ of the digestive tract in some animals, including vertebrates. It secretes protein-digesting enzymes called protease and strong acids to aid in food digestion.
[25] A person having blood type B could safely donate blood to persons with blood types -
A.
A and O
B.
B and O
C.
A and AB
D.
B and AB
Ans:
B and AB
Explanation :
If someone belongs to the blood group B, he has B antigens on the surface of his red blood cells and A antibodies in' his blood plasma. So he can donate blood to persons of B and AB blood groups, but cannot receive blood from persons having B or O groups.
Explanation :
A goitre or goiter is a swelling of the thyroid gland which can lead to a swelling of the neck or larynx (voice box). Goitre is a term that refers to an enlargement of the thyroid and can be associated with a thyroid gland that is functioning properly or not. Worldwide, over 90% cases of goitre are caused by iodine deficiency.
[10] Which of the following is biodegradable?
A.
Paper
B.
D. D. T
C.
Aluminium
D.
Plastic
Ans:
Paper
Explanation :
Paper is organic in nature as it is made from wood and put). So it is bio-degradable and useful in recycling.
[11] Blue-green algae are included in the group -
A.
Eubacteria
B.
Cyanobacteria
C.
Protozoa.
D.
Fungi
Ans:
Cyanobacteria
Explanation :
Cyanobacteria, also known as blue algae, are single celled and belong to the family of Prokaryotes. That means, they do not have a cell nucleus. The ability of cyanobacteria to perform oxygenic photosynthesis is thought to have converted the early reducing atmosphere into an oxidizing one, which dramatically changed the composition of life forms on Earth by stimulating biodiversity and leading to the near- extinction of oxygen-intolerant organisms.
[12] Haemoglobin contains the metal -
A.
Copper
B.
Molybdenum
C.
Iron
D.
Magnesium
Ans:
Iron
Explanation :
Haemoglobin is an iron-containing protein in red blood cells. It contains a haem prosthetic group that has an iron atom at its centre. When the iron is bound to oxygen, the haem group is red in colour (oxyhameoglobin), and when it lacks oxygen (deoxygenated form) it is blue-red.
[13] The most abundant enzyme in the living world is -
A.
Rubisco
B.
Invertase
C.
DNAse
D.
Zymase
Ans:
Rubisco
Explanation :
The abundant enzyme in the living world is Rubisco. It is a key regulator of non-steady state of photosynthesis.
[14] Mycobacterium leprae is a -
A.
Bacillus
B.
Coccus
C.
Spiral
D.
Spore
Ans:
Bacillus
Explanation :
Mycobacterium leprae is a bacterium that causes leprosy, also known as "Hansen's disease", which is a chronic infectious disease that damages the peripheral nerves and targets the skin, eyes, nose, and muscles.
[15] An insect is an organism having -
A.
3 pairs of legs
B.
4 pairs of legs
C.
Head, thorax and abdomen
D.
Pair of wings and antenna
Ans:
3 pairs of legs
Explanation :
An insect is an organism having three pairs of legs. Insects are small, land-dwelling arthropods, characterised by three pairs of jointed legs. It has three distinct body sections : the head, thorax and abdomen. It has one pair of antennae (comprising the scape, pedicel and flagellum), compound eyes and often one or two pairs of wings.
[16] Malaria is transmitted from one person to another by:
A.
Aedes Mosquito
B.
Culex Mosquito
C.
Anopheles Mosquito
D.
All of the above
Ans:
Anopheles Mosquito
Explanation :
Malaria is a mosquito-borne infectious disease which begins with a bite from an infected female Anopheles mosquito, which introduces the protists through saliva into the circulatory system. In the blood, the protists travel to the liver to mature and reproduce.
[17] Liver is a RICH source of -
A.
sugars
B.
fat soluble vitamins
C.
minerals
D.
proteins
Ans:
proteins
Explanation :
In general, liver is a good source of vitamin A, iron, zinc, copper and manganese, and a very good source of protein. There are twenty grams of protein in a single slice of liver.
[18] Cuscuta is a -
A.
Saprophyte
B.
Epiphyte
C.
Xerophyte
D.
Parasite
Ans:
Parasite
Explanation :
Cuseuta (dodder) is a genus of about 100-170 species of yellow, orange, or red parasitic plants. Dodder is parasitic on a very wide variety of plants, including a number of agricultural and horticultural crop species, such as alfalfa, lespedeza, flax, clover, potatoes, etc.
[19] The number of eggs normally released during one menstrual cycle is:
A.
3
B.
2
C.
1
D.
4
Ans:
4
Explanation :
In each menstrual cycle, rising levels of estrogen cause the ovary develop an egg and release it (ovulation). After ovulation, the egg lives for 24 hours.
[20] Vegetables and fruits should be a part of our diet because they stimulate -
A.
Peristalsis
B.
Salivation
C.
Excretion
D.
Respiration
Ans:
Peristalsis
Explanation :
Vegetable and fruits should be a part of our diet because they stimulate peristalsis.
[21] Insectivorous plants grow in soil deficient in -
A.
Calcium
B.
Nitrogen
C.
Magnesium
D.
Water
Ans:
Nitrogen
Explanation :
Insectivorous plants grow in soil deficient in nitrogen.
[22] RBCs do not perform aerobic respiration because these do not contain -
A.
Mitochondria
B.
Nucleus
C.
Endoplasmic Reticulum
D.
Lysosomes
Ans:
Mitochondria
Explanation :
Red Blood Corpusles (RBCs) do not contain Mitochondria.
[23] A cross between homozygous recessive and heterozygous plant is -
A.
Back cross
B.
Test cross
C.
Monohybrid cross
D.
Dihybrid cross
Ans:
Test cross
Explanation :
A cross between homozygous recessive and heterozygous plant is called Test Cross.
[24] Which of the following is not a gland?
A.
Thyroid
B.
Stomach
C.
Liver
D.
Pancreas
Ans:
Stomach
Explanation :
The stomach is a muscular, hollow, dilated part of the digestion system which functions as an important organ of the digestive tract in some animals, including vertebrates. It secretes protein-digesting enzymes called protease and strong acids to aid in food digestion.
[25] A person having blood type B could safely donate blood to persons with blood types -
A.
A and O
B.
B and O
C.
A and AB
D.
B and AB
Ans:
B and AB
Explanation :
If someone belongs to the blood group B, he has B antigens on the surface of his red blood cells and A antibodies in' his blood plasma. So he can donate blood to persons of B and AB blood groups, but cannot receive blood from persons having B or O groups.
Explanation :
Cyanobacteria, also known as blue algae, are single celled and belong to the family of Prokaryotes. That means, they do not have a cell nucleus. The ability of cyanobacteria to perform oxygenic photosynthesis is thought to have converted the early reducing atmosphere into an oxidizing one, which dramatically changed the composition of life forms on Earth by stimulating biodiversity and leading to the near- extinction of oxygen-intolerant organisms.
[12] Haemoglobin contains the metal -
A.
Copper
B.
Molybdenum
C.
Iron
D.
Magnesium
Ans:
Iron
Explanation :
Haemoglobin is an iron-containing protein in red blood cells. It contains a haem prosthetic group that has an iron atom at its centre. When the iron is bound to oxygen, the haem group is red in colour (oxyhameoglobin), and when it lacks oxygen (deoxygenated form) it is blue-red.
[13] The most abundant enzyme in the living world is -
A.
Rubisco
B.
Invertase
C.
DNAse
D.
Zymase
Ans:
Rubisco
Explanation :
The abundant enzyme in the living world is Rubisco. It is a key regulator of non-steady state of photosynthesis.
[14] Mycobacterium leprae is a -
A.
Bacillus
B.
Coccus
C.
Spiral
D.
Spore
Ans:
Bacillus
Explanation :
Mycobacterium leprae is a bacterium that causes leprosy, also known as "Hansen's disease", which is a chronic infectious disease that damages the peripheral nerves and targets the skin, eyes, nose, and muscles.
[15] An insect is an organism having -
A.
3 pairs of legs
B.
4 pairs of legs
C.
Head, thorax and abdomen
D.
Pair of wings and antenna
Ans:
3 pairs of legs
Explanation :
An insect is an organism having three pairs of legs. Insects are small, land-dwelling arthropods, characterised by three pairs of jointed legs. It has three distinct body sections : the head, thorax and abdomen. It has one pair of antennae (comprising the scape, pedicel and flagellum), compound eyes and often one or two pairs of wings.
[16] Malaria is transmitted from one person to another by:
A.
Aedes Mosquito
B.
Culex Mosquito
C.
Anopheles Mosquito
D.
All of the above
Ans:
Anopheles Mosquito
Explanation :
Malaria is a mosquito-borne infectious disease which begins with a bite from an infected female Anopheles mosquito, which introduces the protists through saliva into the circulatory system. In the blood, the protists travel to the liver to mature and reproduce.
[17] Liver is a RICH source of -
A.
sugars
B.
fat soluble vitamins
C.
minerals
D.
proteins
Ans:
proteins
Explanation :
In general, liver is a good source of vitamin A, iron, zinc, copper and manganese, and a very good source of protein. There are twenty grams of protein in a single slice of liver.
[18] Cuscuta is a -
A.
Saprophyte
B.
Epiphyte
C.
Xerophyte
D.
Parasite
Ans:
Parasite
Explanation :
Cuseuta (dodder) is a genus of about 100-170 species of yellow, orange, or red parasitic plants. Dodder is parasitic on a very wide variety of plants, including a number of agricultural and horticultural crop species, such as alfalfa, lespedeza, flax, clover, potatoes, etc.
[19] The number of eggs normally released during one menstrual cycle is:
A.
3
B.
2
C.
1
D.
4
Ans:
4
Explanation :
In each menstrual cycle, rising levels of estrogen cause the ovary develop an egg and release it (ovulation). After ovulation, the egg lives for 24 hours.
[20] Vegetables and fruits should be a part of our diet because they stimulate -
A.
Peristalsis
B.
Salivation
C.
Excretion
D.
Respiration
Ans:
Peristalsis
Explanation :
Vegetable and fruits should be a part of our diet because they stimulate peristalsis.
[21] Insectivorous plants grow in soil deficient in -
A.
Calcium
B.
Nitrogen
C.
Magnesium
D.
Water
Ans:
Nitrogen
Explanation :
Insectivorous plants grow in soil deficient in nitrogen.
[22] RBCs do not perform aerobic respiration because these do not contain -
A.
Mitochondria
B.
Nucleus
C.
Endoplasmic Reticulum
D.
Lysosomes
Ans:
Mitochondria
Explanation :
Red Blood Corpusles (RBCs) do not contain Mitochondria.
[23] A cross between homozygous recessive and heterozygous plant is -
A.
Back cross
B.
Test cross
C.
Monohybrid cross
D.
Dihybrid cross
Ans:
Test cross
Explanation :
A cross between homozygous recessive and heterozygous plant is called Test Cross.
[24] Which of the following is not a gland?
A.
Thyroid
B.
Stomach
C.
Liver
D.
Pancreas
Ans:
Stomach
Explanation :
The stomach is a muscular, hollow, dilated part of the digestion system which functions as an important organ of the digestive tract in some animals, including vertebrates. It secretes protein-digesting enzymes called protease and strong acids to aid in food digestion.
[25] A person having blood type B could safely donate blood to persons with blood types -
A.
A and O
B.
B and O
C.
A and AB
D.
B and AB
Ans:
B and AB
Explanation :
If someone belongs to the blood group B, he has B antigens on the surface of his red blood cells and A antibodies in' his blood plasma. So he can donate blood to persons of B and AB blood groups, but cannot receive blood from persons having B or O groups.
Explanation :
The abundant enzyme in the living world is Rubisco. It is a key regulator of non-steady state of photosynthesis.
[14] Mycobacterium leprae is a -
A.
Bacillus
B.
Coccus
C.
Spiral
D.
Spore
Ans:
Bacillus
Explanation :
Mycobacterium leprae is a bacterium that causes leprosy, also known as "Hansen's disease", which is a chronic infectious disease that damages the peripheral nerves and targets the skin, eyes, nose, and muscles.
[15] An insect is an organism having -
A.
3 pairs of legs
B.
4 pairs of legs
C.
Head, thorax and abdomen
D.
Pair of wings and antenna
Ans:
3 pairs of legs
Explanation :
An insect is an organism having three pairs of legs. Insects are small, land-dwelling arthropods, characterised by three pairs of jointed legs. It has three distinct body sections : the head, thorax and abdomen. It has one pair of antennae (comprising the scape, pedicel and flagellum), compound eyes and often one or two pairs of wings.
[16] Malaria is transmitted from one person to another by:
A.
Aedes Mosquito
B.
Culex Mosquito
C.
Anopheles Mosquito
D.
All of the above
Ans:
Anopheles Mosquito
Explanation :
Malaria is a mosquito-borne infectious disease which begins with a bite from an infected female Anopheles mosquito, which introduces the protists through saliva into the circulatory system. In the blood, the protists travel to the liver to mature and reproduce.
[17] Liver is a RICH source of -
A.
sugars
B.
fat soluble vitamins
C.
minerals
D.
proteins
Ans:
proteins
Explanation :
In general, liver is a good source of vitamin A, iron, zinc, copper and manganese, and a very good source of protein. There are twenty grams of protein in a single slice of liver.
[18] Cuscuta is a -
A.
Saprophyte
B.
Epiphyte
C.
Xerophyte
D.
Parasite
Ans:
Parasite
Explanation :
Cuseuta (dodder) is a genus of about 100-170 species of yellow, orange, or red parasitic plants. Dodder is parasitic on a very wide variety of plants, including a number of agricultural and horticultural crop species, such as alfalfa, lespedeza, flax, clover, potatoes, etc.
[19] The number of eggs normally released during one menstrual cycle is:
A.
3
B.
2
C.
1
D.
4
Ans:
4
Explanation :
In each menstrual cycle, rising levels of estrogen cause the ovary develop an egg and release it (ovulation). After ovulation, the egg lives for 24 hours.
[20] Vegetables and fruits should be a part of our diet because they stimulate -
A.
Peristalsis
B.
Salivation
C.
Excretion
D.
Respiration
Ans:
Peristalsis
Explanation :
Vegetable and fruits should be a part of our diet because they stimulate peristalsis.
[21] Insectivorous plants grow in soil deficient in -
A.
Calcium
B.
Nitrogen
C.
Magnesium
D.
Water
Ans:
Nitrogen
Explanation :
Insectivorous plants grow in soil deficient in nitrogen.
[22] RBCs do not perform aerobic respiration because these do not contain -
A.
Mitochondria
B.
Nucleus
C.
Endoplasmic Reticulum
D.
Lysosomes
Ans:
Mitochondria
Explanation :
Red Blood Corpusles (RBCs) do not contain Mitochondria.
[23] A cross between homozygous recessive and heterozygous plant is -
A.
Back cross
B.
Test cross
C.
Monohybrid cross
D.
Dihybrid cross
Ans:
Test cross
Explanation :
A cross between homozygous recessive and heterozygous plant is called Test Cross.
[24] Which of the following is not a gland?
A.
Thyroid
B.
Stomach
C.
Liver
D.
Pancreas
Ans:
Stomach
Explanation :
The stomach is a muscular, hollow, dilated part of the digestion system which functions as an important organ of the digestive tract in some animals, including vertebrates. It secretes protein-digesting enzymes called protease and strong acids to aid in food digestion.
[25] A person having blood type B could safely donate blood to persons with blood types -
A.
A and O
B.
B and O
C.
A and AB
D.
B and AB
Ans:
B and AB
Explanation :
If someone belongs to the blood group B, he has B antigens on the surface of his red blood cells and A antibodies in' his blood plasma. So he can donate blood to persons of B and AB blood groups, but cannot receive blood from persons having B or O groups.
Explanation :
An insect is an organism having three pairs of legs. Insects are small, land-dwelling arthropods, characterised by three pairs of jointed legs. It has three distinct body sections : the head, thorax and abdomen. It has one pair of antennae (comprising the scape, pedicel and flagellum), compound eyes and often one or two pairs of wings.
[16] Malaria is transmitted from one person to another by:
A.
Aedes Mosquito
B.
Culex Mosquito
C.
Anopheles Mosquito
D.
All of the above
Ans:
Anopheles Mosquito
Explanation :
Malaria is a mosquito-borne infectious disease which begins with a bite from an infected female Anopheles mosquito, which introduces the protists through saliva into the circulatory system. In the blood, the protists travel to the liver to mature and reproduce.
[17] Liver is a RICH source of -
A.
sugars
B.
fat soluble vitamins
C.
minerals
D.
proteins
Ans:
proteins
Explanation :
In general, liver is a good source of vitamin A, iron, zinc, copper and manganese, and a very good source of protein. There are twenty grams of protein in a single slice of liver.
[18] Cuscuta is a -
A.
Saprophyte
B.
Epiphyte
C.
Xerophyte
D.
Parasite
Ans:
Parasite
Explanation :
Cuseuta (dodder) is a genus of about 100-170 species of yellow, orange, or red parasitic plants. Dodder is parasitic on a very wide variety of plants, including a number of agricultural and horticultural crop species, such as alfalfa, lespedeza, flax, clover, potatoes, etc.
[19] The number of eggs normally released during one menstrual cycle is:
A.
3
B.
2
C.
1
D.
4
Ans:
4
Explanation :
In each menstrual cycle, rising levels of estrogen cause the ovary develop an egg and release it (ovulation). After ovulation, the egg lives for 24 hours.
[20] Vegetables and fruits should be a part of our diet because they stimulate -
A.
Peristalsis
B.
Salivation
C.
Excretion
D.
Respiration
Ans:
Peristalsis
Explanation :
Vegetable and fruits should be a part of our diet because they stimulate peristalsis.
[21] Insectivorous plants grow in soil deficient in -
A.
Calcium
B.
Nitrogen
C.
Magnesium
D.
Water
Ans:
Nitrogen
Explanation :
Insectivorous plants grow in soil deficient in nitrogen.
[22] RBCs do not perform aerobic respiration because these do not contain -
A.
Mitochondria
B.
Nucleus
C.
Endoplasmic Reticulum
D.
Lysosomes
Ans:
Mitochondria
Explanation :
Red Blood Corpusles (RBCs) do not contain Mitochondria.
[23] A cross between homozygous recessive and heterozygous plant is -
A.
Back cross
B.
Test cross
C.
Monohybrid cross
D.
Dihybrid cross
Ans:
Test cross
Explanation :
A cross between homozygous recessive and heterozygous plant is called Test Cross.
[24] Which of the following is not a gland?
A.
Thyroid
B.
Stomach
C.
Liver
D.
Pancreas
Ans:
Stomach
Explanation :
The stomach is a muscular, hollow, dilated part of the digestion system which functions as an important organ of the digestive tract in some animals, including vertebrates. It secretes protein-digesting enzymes called protease and strong acids to aid in food digestion.
[25] A person having blood type B could safely donate blood to persons with blood types -
A.
A and O
B.
B and O
C.
A and AB
D.
B and AB
Ans:
B and AB
Explanation :
If someone belongs to the blood group B, he has B antigens on the surface of his red blood cells and A antibodies in' his blood plasma. So he can donate blood to persons of B and AB blood groups, but cannot receive blood from persons having B or O groups.
Explanation :
In general, liver is a good source of vitamin A, iron, zinc, copper and manganese, and a very good source of protein. There are twenty grams of protein in a single slice of liver.
[18] Cuscuta is a -
A.
Saprophyte
B.
Epiphyte
C.
Xerophyte
D.
Parasite
Ans:
Parasite
Explanation :
Cuseuta (dodder) is a genus of about 100-170 species of yellow, orange, or red parasitic plants. Dodder is parasitic on a very wide variety of plants, including a number of agricultural and horticultural crop species, such as alfalfa, lespedeza, flax, clover, potatoes, etc.
[19] The number of eggs normally released during one menstrual cycle is:
A.
3
B.
2
C.
1
D.
4
Ans:
4
Explanation :
In each menstrual cycle, rising levels of estrogen cause the ovary develop an egg and release it (ovulation). After ovulation, the egg lives for 24 hours.
[20] Vegetables and fruits should be a part of our diet because they stimulate -
A.
Peristalsis
B.
Salivation
C.
Excretion
D.
Respiration
Ans:
Peristalsis
Explanation :
Vegetable and fruits should be a part of our diet because they stimulate peristalsis.
[21] Insectivorous plants grow in soil deficient in -
A.
Calcium
B.
Nitrogen
C.
Magnesium
D.
Water
Ans:
Nitrogen
Explanation :
Insectivorous plants grow in soil deficient in nitrogen.
[22] RBCs do not perform aerobic respiration because these do not contain -
A.
Mitochondria
B.
Nucleus
C.
Endoplasmic Reticulum
D.
Lysosomes
Ans:
Mitochondria
Explanation :
Red Blood Corpusles (RBCs) do not contain Mitochondria.
[23] A cross between homozygous recessive and heterozygous plant is -
A.
Back cross
B.
Test cross
C.
Monohybrid cross
D.
Dihybrid cross
Ans:
Test cross
Explanation :
A cross between homozygous recessive and heterozygous plant is called Test Cross.
[24] Which of the following is not a gland?
A.
Thyroid
B.
Stomach
C.
Liver
D.
Pancreas
Ans:
Stomach
Explanation :
The stomach is a muscular, hollow, dilated part of the digestion system which functions as an important organ of the digestive tract in some animals, including vertebrates. It secretes protein-digesting enzymes called protease and strong acids to aid in food digestion.
[25] A person having blood type B could safely donate blood to persons with blood types -
A.
A and O
B.
B and O
C.
A and AB
D.
B and AB
Ans:
B and AB
Explanation :
If someone belongs to the blood group B, he has B antigens on the surface of his red blood cells and A antibodies in' his blood plasma. So he can donate blood to persons of B and AB blood groups, but cannot receive blood from persons having B or O groups.
Explanation :
In each menstrual cycle, rising levels of estrogen cause the ovary develop an egg and release it (ovulation). After ovulation, the egg lives for 24 hours.
[20] Vegetables and fruits should be a part of our diet because they stimulate -
A.
Peristalsis
B.
Salivation
C.
Excretion
D.
Respiration
Ans:
Peristalsis
Explanation :
Vegetable and fruits should be a part of our diet because they stimulate peristalsis.
[21] Insectivorous plants grow in soil deficient in -
A.
Calcium
B.
Nitrogen
C.
Magnesium
D.
Water
Ans:
Nitrogen
Explanation :
Insectivorous plants grow in soil deficient in nitrogen.
[22] RBCs do not perform aerobic respiration because these do not contain -
A.
Mitochondria
B.
Nucleus
C.
Endoplasmic Reticulum
D.
Lysosomes
Ans:
Mitochondria
Explanation :
Red Blood Corpusles (RBCs) do not contain Mitochondria.
[23] A cross between homozygous recessive and heterozygous plant is -
A.
Back cross
B.
Test cross
C.
Monohybrid cross
D.
Dihybrid cross
Ans:
Test cross
Explanation :
A cross between homozygous recessive and heterozygous plant is called Test Cross.
[24] Which of the following is not a gland?
A.
Thyroid
B.
Stomach
C.
Liver
D.
Pancreas
Ans:
Stomach
Explanation :
The stomach is a muscular, hollow, dilated part of the digestion system which functions as an important organ of the digestive tract in some animals, including vertebrates. It secretes protein-digesting enzymes called protease and strong acids to aid in food digestion.
[25] A person having blood type B could safely donate blood to persons with blood types -
A.
A and O
B.
B and O
C.
A and AB
D.
B and AB
Ans:
B and AB
Explanation :
If someone belongs to the blood group B, he has B antigens on the surface of his red blood cells and A antibodies in' his blood plasma. So he can donate blood to persons of B and AB blood groups, but cannot receive blood from persons having B or O groups.
Explanation :
Insectivorous plants grow in soil deficient in nitrogen.
[22] RBCs do not perform aerobic respiration because these do not contain -
A.
Mitochondria
B.
Nucleus
C.
Endoplasmic Reticulum
D.
Lysosomes
Ans:
Mitochondria
Explanation :
Red Blood Corpusles (RBCs) do not contain Mitochondria.
[23] A cross between homozygous recessive and heterozygous plant is -
A.
Back cross
B.
Test cross
C.
Monohybrid cross
D.
Dihybrid cross
Ans:
Test cross
Explanation :
A cross between homozygous recessive and heterozygous plant is called Test Cross.
[24] Which of the following is not a gland?
A.
Thyroid
B.
Stomach
C.
Liver
D.
Pancreas
Ans:
Stomach
Explanation :
The stomach is a muscular, hollow, dilated part of the digestion system which functions as an important organ of the digestive tract in some animals, including vertebrates. It secretes protein-digesting enzymes called protease and strong acids to aid in food digestion.
[25] A person having blood type B could safely donate blood to persons with blood types -
A.
A and O
B.
B and O
C.
A and AB
D.
B and AB
Ans:
B and AB
Explanation :
If someone belongs to the blood group B, he has B antigens on the surface of his red blood cells and A antibodies in' his blood plasma. So he can donate blood to persons of B and AB blood groups, but cannot receive blood from persons having B or O groups.
Explanation :
A cross between homozygous recessive and heterozygous plant is called Test Cross.
[24] Which of the following is not a gland?
A.
Thyroid
B.
Stomach
C.
Liver
D.
Pancreas
Ans:
Stomach
Explanation :
The stomach is a muscular, hollow, dilated part of the digestion system which functions as an important organ of the digestive tract in some animals, including vertebrates. It secretes protein-digesting enzymes called protease and strong acids to aid in food digestion.
[25] A person having blood type B could safely donate blood to persons with blood types -
A.
A and O
B.
B and O
C.
A and AB
D.
B and AB
Ans:
B and AB
Explanation :
If someone belongs to the blood group B, he has B antigens on the surface of his red blood cells and A antibodies in' his blood plasma. So he can donate blood to persons of B and AB blood groups, but cannot receive blood from persons having B or O groups.
Explanation :
If someone belongs to the blood group B, he has B antigens on the surface of his red blood cells and A antibodies in' his blood plasma. So he can donate blood to persons of B and AB blood groups, but cannot receive blood from persons having B or O groups.