[1] Of the following man-made disasters, which is socially induced?
A.
Debris Avalanche
B.
Salt Water Intrusion
C.
Arson
D.
Ozone depletion
Ans:
Arson
Explanation :
Arson is the crime of intentionally and maliciously setting fire to buildings, wildland areas, vehicles or other property with the intent to cause damage. Distinct from spontaneous combustion and natural wildfires, it is considered to be a man-made disaster which is socially induced.
[2] Which one of the following endocrine gland is situated in the neck?
A.
Pancreas
B.
Thyroid
C.
Pituitary
D.
Adrenals
Ans:
Thyroid
Explanation :
The thyroid gland is one of the largest endocrine glands in the human body which is found in the neck. It controls how quickly the body uses energy, makes proteins, and controls how sensitive the body is to other hormones.
[3] The seat of intelligence is situated in the -
A.
cerebrum
B.
cerebellum
C.
medulla
D.
thalamus
Ans:
cerebellum
Explanation :
The cerebrum is the seat of intelligence and provides us with the ability to read, write and speak; make calculations and compose music; remember the past and plan for the future; and create works.
[4] For which one among the following diseases no vaccine is yet available?
A.
Tetanus
B.
Malaria
C.
Measles
D.
Mumps
Ans:
Malaria
Explanation :
Malaria vaccine is a vaccine that is used to prevent malaria. The only approved vaccine as of 2015 is RTS,S, known by the trade name Mosquirix. It requires four injections, and has a relatively low efficacy.
[5] Octopus is -
A.
an arthropod
B.
an echinoderm
C.
a hemichordate
D.
a mollusc
Ans:
a mollusc
Explanation :
Octopus is an animal of class-Cephalopoda and phylum Mollusca. The shell is absent. It is found at bottom of the sea. It kills its prey with poisonous saliva. It can change its colour.
[6] Potential of air pollution increases when the ventilation coefficient is -
A.
> 119000 m2/s
B.
> 7,600 m2/s
C.
< 3.600 m2/s
D.
< 6,000 m2/s
Ans:
< 6,000 m2/s
Explanation :
The product of the maximum mixing depth and the average wind speed within the mixing depth is sometimes used as an indicator of the atmosphere's dispersive capability. This product is known as the ventilation coefficient (m2/s). Values of ventilation coefficient less than about 6000 m2is are considered indicative of high air pollution potential (Portelli and Lewis, 1987).
[7] Who among the following have venous heart?
A.
Mammals
B.
Reptilians
C.
Fishes
D.
Amphibians
Ans:
Fishes
Explanation :
There are over 20,000 species of fish, divided into three groups : bony fish, cartilaginous fish and jawless fish. Bony fish, which are the most numerous, have skeletons, of bone, and swim bladders (gas-filled organs) to keep them afloat. Cartilaginous fish, such as sharks, rays and raffish, are mostly marine hunters; they have skeletons made of cartilage and sandpaper-like skin. The primitive jawless fish have sucker-like mouths, and include lampreys and hagfish.
[8] In our body, antibodies are formed against pathogens in -
A.
liver by RBC
B.
blood by platelets
C.
brain by macrophages
D.
thymus by lymphocytes
Ans:
thymus by lymphocytes
Explanation :
0
[9] Prawn heart carries -
A.
no blood
B.
deoxygenated blood
C.
oxygenated blood
D.
mixed blood
Ans:
oxygenated blood
Explanation :
0
[10] Minamata disease was caused due to -
A.
Lead
B.
Cyanide
C.
Mercury
D.
Methyl isocyanate
Ans:
Mercury
Explanation :
Minamata disease is a methylmercury poisoning with neurological symptoms and caused by the daily consumption of large quantities of fish and shellfish that were heavily contaminated with the toxic chemical generated in chemical factories and then discharged into the sea.
[11] Nutrients are recycled in the atmosphere with the help of certain micro-organisms referred to as -
A.
producers
B.
consumers
C.
decomposers
D.
None of these
Ans:
decomposers
Explanation :
Decomposers recycle nutrients in the atmosphere.
[12] The yellow colour of urine is due to presence of -
A.
Bile
B.
Lymph
C.
Cholesterol
D.
Urochrorne
Ans:
Urochrorne
Explanation :
The color of normal urine is usually light yellow to amber. Generally, the greater the solute volume the deeper the color. The yellow color of urine is due to the presence of a yellow pigment, urochrome. Deviations from normal color can be caused by certain drugs and various vegetables such as carrots, beets, and rhubarb.
[13] Which of the following is known as 'grave yard' of RBCs?
A.
Liver
B.
Bone marrow
C.
Spleen
D.
Appendix
Ans:
Spleen
Explanation :
The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, it is commonly called the 'graveyard of RBC'. The spleen plays an important role in the red blood cells also known as aserythrocytes and the digestive system. Old and damaged RBC's are destroyed in the spleen and It is known as the RBCs Graveyard. Function of spleen : The spleen is the largest organ of the lymphatic system.
[14] Silk is produced by -
A.
Egg of a silkworm
B.
Pupa of silkworm
C.
Larva of silkworm
D.
Insect itself
Ans:
Larva of silkworm
Explanation :
Silk is a natural protein fibre, some forms of which can be woven into textiles. The protein fibre of silk is composed mainly of fibroin and produced by certain insect larvae to form cocoons. The best-known type of silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori.
[15] Which of the following is an egg laying mammal?
A.
Bat
B.
Leafy anteater
C.
Whale
D.
Spiny anteater
Ans:
Spiny anteater
Explanation :
Monotremes are mammals that lay eggs instead of giving birth to live young like marsupials and placental mammals. The only surviving examples of monotremes are all indigenous to Australia and New Guinea, although there is evidence that they were once more widespread. Among living mammals they include the platypus and four species of echidnas (or spiny anteaters).
[16] The tallest plant in the world is -
A.
Eucalyptus
B.
Pterocarpus
C.
Polyalthia
D.
Tectona
Ans:
Eucalyptus
Explanation :
Eucalyptus regnans is the tallest of all flowering plants, and possibly the tallest of all plants, although no living specimens can make that claim. The tallest measured living specimen, named Centurion, stands 101 metres tall in Tasmania.
[17] The only bird that flies backward is -
A.
Sparrow
B.
Koel
C.
Siberian Crane
D.
Humming bird
Ans:
Humming bird
Explanation :
A humming bird can rotate each of its wings in a circle, allowing them to be the only bird which can fly forwards, backwards, up, down, sideways or sit in sheer space. To hover, hummingbirds move their wings forward and backward in a repeated figure eight, much like the arms of a swimmer treading water. Humming birds can move instantaneously in any direction, start from its perch at full speed, and doesn't necessarily slow up to land.
[18] Which of the following pairs has open type of circulatory system?
A.
Earthworm and Leech
B.
Man and Whale
C.
Cockroach and Silverfish
D.
Tadpole larva and Fish
Ans:
Cockroach and Silverfish
Explanation :
The open circulatory system is common to mollusks and arthropods. Open circulatory systems pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood. Cockroaches and silverfish have an open circulatory system. They don't have any blood vessels.
[19] Which of the following animals does not have nervous system?
A.
Leech
B.
Tapeworm
C.
Amoeba
D.
Snail
Ans:
Amoeba
Explanation :
The amoebas do not have nervous system, but they communicate by means of the interaction of the cellular membrane with the outside that surrounds to him. Like answer for example to an injurious stimulus, irritating or nutritional, the intracellular communication produces a reaction of the complete cell, moving away or approaching the respective stimulus.
[20] Plants differ from animals in having -
A.
locomotion
B.
metabolism
C.
localised growth
D.
catabolism
Ans:
localised growth
Explanation :
Plants produce new cells and grow only in their shoot and root apical meristems and leaf primordia; this is localized growth. In contrast, all parts of an animal's body grow (diffuse growth). From the time we are embryos until we are about 18 years old, all parts of our body grow simultaneously. Due to a plant's localized growth, an individual plant can have older, completely mature and highly functional leaves at the same time that it is still producing new leaves.
[21] Root nodules are commonly found in -
A.
Parasitic plants
B.
Epiphytic plants
C.
Leguminous plants
D.
Aquatic plants
Ans:
Leguminous plants
Explanation :
Leguminous plants are plants with root nodules. These plants need root nodules because the bacteria in these nodules covert nitrogen into nitrates and give it to the plant. The plant uses this nitrogen to make proteins and other stuff. In return the plants use the provide shelter and carbohydrates to the bacteria.
[22] A disease caused by Protozoa is -
A.
Common cold
B.
Pneumonia
C.
Malaria
D.
Cholera
Ans:
Malaria
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. Sporozoites are the form that is injected by the mosquito into humans.
[23] Which of the following is a Vitamin?
A.
Keratin
B.
Riboflavin
C.
Insulin
D.
Adrenalin
Ans:
Riboflavin
Explanation :
Riboflavin, also known as vitamin B2 is an easily absorbed colored micronutrient with a key role in maintaining health in humans and animals. It plays a key role in energy metabolism, and for the metabolism of fats, ketone bodies, carbohydrates, and proteins. Milk, cheese, leaf vegetables, liver, kidneys, legumes, yeast, mushrooms, and almonds are good sources of vitamin B2, but exposure to light destroys riboflavin.
[24] Which of the following organisms does not fit into the Cell Theory?
A.
Bacteria
B.
Virus
C.
Fungi
D.
Plants
Ans:
Virus
Explanation :
The cell theory states that all living things are made of cells, cells are the basic units of structure and function of living things, and that all cells come from other cells.
[25] The most abundant enzyme in the living world is -
A.
Rubisco
B.
invertase
C.
DNAse
D.
zymase
Ans:
Rubisco
Explanation :
Rubisco or ribulose 1, 5 bisphosphate carboxylase oxygenase is the plants enzyme which helps in the dark phase of photosynthesis (in the synthesis of ribulose sugar).
Explanation :
Arson is the crime of intentionally and maliciously setting fire to buildings, wildland areas, vehicles or other property with the intent to cause damage. Distinct from spontaneous combustion and natural wildfires, it is considered to be a man-made disaster which is socially induced.
[2] Which one of the following endocrine gland is situated in the neck?
A.
Pancreas
B.
Thyroid
C.
Pituitary
D.
Adrenals
Ans:
Thyroid
Explanation :
The thyroid gland is one of the largest endocrine glands in the human body which is found in the neck. It controls how quickly the body uses energy, makes proteins, and controls how sensitive the body is to other hormones.
[3] The seat of intelligence is situated in the -
A.
cerebrum
B.
cerebellum
C.
medulla
D.
thalamus
Ans:
cerebellum
Explanation :
The cerebrum is the seat of intelligence and provides us with the ability to read, write and speak; make calculations and compose music; remember the past and plan for the future; and create works.
[4] For which one among the following diseases no vaccine is yet available?
A.
Tetanus
B.
Malaria
C.
Measles
D.
Mumps
Ans:
Malaria
Explanation :
Malaria vaccine is a vaccine that is used to prevent malaria. The only approved vaccine as of 2015 is RTS,S, known by the trade name Mosquirix. It requires four injections, and has a relatively low efficacy.
[5] Octopus is -
A.
an arthropod
B.
an echinoderm
C.
a hemichordate
D.
a mollusc
Ans:
a mollusc
Explanation :
Octopus is an animal of class-Cephalopoda and phylum Mollusca. The shell is absent. It is found at bottom of the sea. It kills its prey with poisonous saliva. It can change its colour.
[6] Potential of air pollution increases when the ventilation coefficient is -
A.
> 119000 m2/s
B.
> 7,600 m2/s
C.
< 3.600 m2/s
D.
< 6,000 m2/s
Ans:
< 6,000 m2/s
Explanation :
The product of the maximum mixing depth and the average wind speed within the mixing depth is sometimes used as an indicator of the atmosphere's dispersive capability. This product is known as the ventilation coefficient (m2/s). Values of ventilation coefficient less than about 6000 m2is are considered indicative of high air pollution potential (Portelli and Lewis, 1987).
[7] Who among the following have venous heart?
A.
Mammals
B.
Reptilians
C.
Fishes
D.
Amphibians
Ans:
Fishes
Explanation :
There are over 20,000 species of fish, divided into three groups : bony fish, cartilaginous fish and jawless fish. Bony fish, which are the most numerous, have skeletons, of bone, and swim bladders (gas-filled organs) to keep them afloat. Cartilaginous fish, such as sharks, rays and raffish, are mostly marine hunters; they have skeletons made of cartilage and sandpaper-like skin. The primitive jawless fish have sucker-like mouths, and include lampreys and hagfish.
[8] In our body, antibodies are formed against pathogens in -
A.
liver by RBC
B.
blood by platelets
C.
brain by macrophages
D.
thymus by lymphocytes
Ans:
thymus by lymphocytes
Explanation :
0
[9] Prawn heart carries -
A.
no blood
B.
deoxygenated blood
C.
oxygenated blood
D.
mixed blood
Ans:
oxygenated blood
Explanation :
0
[10] Minamata disease was caused due to -
A.
Lead
B.
Cyanide
C.
Mercury
D.
Methyl isocyanate
Ans:
Mercury
Explanation :
Minamata disease is a methylmercury poisoning with neurological symptoms and caused by the daily consumption of large quantities of fish and shellfish that were heavily contaminated with the toxic chemical generated in chemical factories and then discharged into the sea.
[11] Nutrients are recycled in the atmosphere with the help of certain micro-organisms referred to as -
A.
producers
B.
consumers
C.
decomposers
D.
None of these
Ans:
decomposers
Explanation :
Decomposers recycle nutrients in the atmosphere.
[12] The yellow colour of urine is due to presence of -
A.
Bile
B.
Lymph
C.
Cholesterol
D.
Urochrorne
Ans:
Urochrorne
Explanation :
The color of normal urine is usually light yellow to amber. Generally, the greater the solute volume the deeper the color. The yellow color of urine is due to the presence of a yellow pigment, urochrome. Deviations from normal color can be caused by certain drugs and various vegetables such as carrots, beets, and rhubarb.
[13] Which of the following is known as 'grave yard' of RBCs?
A.
Liver
B.
Bone marrow
C.
Spleen
D.
Appendix
Ans:
Spleen
Explanation :
The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, it is commonly called the 'graveyard of RBC'. The spleen plays an important role in the red blood cells also known as aserythrocytes and the digestive system. Old and damaged RBC's are destroyed in the spleen and It is known as the RBCs Graveyard. Function of spleen : The spleen is the largest organ of the lymphatic system.
[14] Silk is produced by -
A.
Egg of a silkworm
B.
Pupa of silkworm
C.
Larva of silkworm
D.
Insect itself
Ans:
Larva of silkworm
Explanation :
Silk is a natural protein fibre, some forms of which can be woven into textiles. The protein fibre of silk is composed mainly of fibroin and produced by certain insect larvae to form cocoons. The best-known type of silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori.
[15] Which of the following is an egg laying mammal?
A.
Bat
B.
Leafy anteater
C.
Whale
D.
Spiny anteater
Ans:
Spiny anteater
Explanation :
Monotremes are mammals that lay eggs instead of giving birth to live young like marsupials and placental mammals. The only surviving examples of monotremes are all indigenous to Australia and New Guinea, although there is evidence that they were once more widespread. Among living mammals they include the platypus and four species of echidnas (or spiny anteaters).
[16] The tallest plant in the world is -
A.
Eucalyptus
B.
Pterocarpus
C.
Polyalthia
D.
Tectona
Ans:
Eucalyptus
Explanation :
Eucalyptus regnans is the tallest of all flowering plants, and possibly the tallest of all plants, although no living specimens can make that claim. The tallest measured living specimen, named Centurion, stands 101 metres tall in Tasmania.
[17] The only bird that flies backward is -
A.
Sparrow
B.
Koel
C.
Siberian Crane
D.
Humming bird
Ans:
Humming bird
Explanation :
A humming bird can rotate each of its wings in a circle, allowing them to be the only bird which can fly forwards, backwards, up, down, sideways or sit in sheer space. To hover, hummingbirds move their wings forward and backward in a repeated figure eight, much like the arms of a swimmer treading water. Humming birds can move instantaneously in any direction, start from its perch at full speed, and doesn't necessarily slow up to land.
[18] Which of the following pairs has open type of circulatory system?
A.
Earthworm and Leech
B.
Man and Whale
C.
Cockroach and Silverfish
D.
Tadpole larva and Fish
Ans:
Cockroach and Silverfish
Explanation :
The open circulatory system is common to mollusks and arthropods. Open circulatory systems pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood. Cockroaches and silverfish have an open circulatory system. They don't have any blood vessels.
[19] Which of the following animals does not have nervous system?
A.
Leech
B.
Tapeworm
C.
Amoeba
D.
Snail
Ans:
Amoeba
Explanation :
The amoebas do not have nervous system, but they communicate by means of the interaction of the cellular membrane with the outside that surrounds to him. Like answer for example to an injurious stimulus, irritating or nutritional, the intracellular communication produces a reaction of the complete cell, moving away or approaching the respective stimulus.
[20] Plants differ from animals in having -
A.
locomotion
B.
metabolism
C.
localised growth
D.
catabolism
Ans:
localised growth
Explanation :
Plants produce new cells and grow only in their shoot and root apical meristems and leaf primordia; this is localized growth. In contrast, all parts of an animal's body grow (diffuse growth). From the time we are embryos until we are about 18 years old, all parts of our body grow simultaneously. Due to a plant's localized growth, an individual plant can have older, completely mature and highly functional leaves at the same time that it is still producing new leaves.
[21] Root nodules are commonly found in -
A.
Parasitic plants
B.
Epiphytic plants
C.
Leguminous plants
D.
Aquatic plants
Ans:
Leguminous plants
Explanation :
Leguminous plants are plants with root nodules. These plants need root nodules because the bacteria in these nodules covert nitrogen into nitrates and give it to the plant. The plant uses this nitrogen to make proteins and other stuff. In return the plants use the provide shelter and carbohydrates to the bacteria.
[22] A disease caused by Protozoa is -
A.
Common cold
B.
Pneumonia
C.
Malaria
D.
Cholera
Ans:
Malaria
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. Sporozoites are the form that is injected by the mosquito into humans.
[23] Which of the following is a Vitamin?
A.
Keratin
B.
Riboflavin
C.
Insulin
D.
Adrenalin
Ans:
Riboflavin
Explanation :
Riboflavin, also known as vitamin B2 is an easily absorbed colored micronutrient with a key role in maintaining health in humans and animals. It plays a key role in energy metabolism, and for the metabolism of fats, ketone bodies, carbohydrates, and proteins. Milk, cheese, leaf vegetables, liver, kidneys, legumes, yeast, mushrooms, and almonds are good sources of vitamin B2, but exposure to light destroys riboflavin.
[24] Which of the following organisms does not fit into the Cell Theory?
A.
Bacteria
B.
Virus
C.
Fungi
D.
Plants
Ans:
Virus
Explanation :
The cell theory states that all living things are made of cells, cells are the basic units of structure and function of living things, and that all cells come from other cells.
[25] The most abundant enzyme in the living world is -
A.
Rubisco
B.
invertase
C.
DNAse
D.
zymase
Ans:
Rubisco
Explanation :
Rubisco or ribulose 1, 5 bisphosphate carboxylase oxygenase is the plants enzyme which helps in the dark phase of photosynthesis (in the synthesis of ribulose sugar).
Explanation :
The cerebrum is the seat of intelligence and provides us with the ability to read, write and speak; make calculations and compose music; remember the past and plan for the future; and create works.
[4] For which one among the following diseases no vaccine is yet available?
A.
Tetanus
B.
Malaria
C.
Measles
D.
Mumps
Ans:
Malaria
Explanation :
Malaria vaccine is a vaccine that is used to prevent malaria. The only approved vaccine as of 2015 is RTS,S, known by the trade name Mosquirix. It requires four injections, and has a relatively low efficacy.
[5] Octopus is -
A.
an arthropod
B.
an echinoderm
C.
a hemichordate
D.
a mollusc
Ans:
a mollusc
Explanation :
Octopus is an animal of class-Cephalopoda and phylum Mollusca. The shell is absent. It is found at bottom of the sea. It kills its prey with poisonous saliva. It can change its colour.
[6] Potential of air pollution increases when the ventilation coefficient is -
A.
> 119000 m2/s
B.
> 7,600 m2/s
C.
< 3.600 m2/s
D.
< 6,000 m2/s
Ans:
< 6,000 m2/s
Explanation :
The product of the maximum mixing depth and the average wind speed within the mixing depth is sometimes used as an indicator of the atmosphere's dispersive capability. This product is known as the ventilation coefficient (m2/s). Values of ventilation coefficient less than about 6000 m2is are considered indicative of high air pollution potential (Portelli and Lewis, 1987).
[7] Who among the following have venous heart?
A.
Mammals
B.
Reptilians
C.
Fishes
D.
Amphibians
Ans:
Fishes
Explanation :
There are over 20,000 species of fish, divided into three groups : bony fish, cartilaginous fish and jawless fish. Bony fish, which are the most numerous, have skeletons, of bone, and swim bladders (gas-filled organs) to keep them afloat. Cartilaginous fish, such as sharks, rays and raffish, are mostly marine hunters; they have skeletons made of cartilage and sandpaper-like skin. The primitive jawless fish have sucker-like mouths, and include lampreys and hagfish.
[8] In our body, antibodies are formed against pathogens in -
A.
liver by RBC
B.
blood by platelets
C.
brain by macrophages
D.
thymus by lymphocytes
Ans:
thymus by lymphocytes
Explanation :
0
[9] Prawn heart carries -
A.
no blood
B.
deoxygenated blood
C.
oxygenated blood
D.
mixed blood
Ans:
oxygenated blood
Explanation :
0
[10] Minamata disease was caused due to -
A.
Lead
B.
Cyanide
C.
Mercury
D.
Methyl isocyanate
Ans:
Mercury
Explanation :
Minamata disease is a methylmercury poisoning with neurological symptoms and caused by the daily consumption of large quantities of fish and shellfish that were heavily contaminated with the toxic chemical generated in chemical factories and then discharged into the sea.
[11] Nutrients are recycled in the atmosphere with the help of certain micro-organisms referred to as -
A.
producers
B.
consumers
C.
decomposers
D.
None of these
Ans:
decomposers
Explanation :
Decomposers recycle nutrients in the atmosphere.
[12] The yellow colour of urine is due to presence of -
A.
Bile
B.
Lymph
C.
Cholesterol
D.
Urochrorne
Ans:
Urochrorne
Explanation :
The color of normal urine is usually light yellow to amber. Generally, the greater the solute volume the deeper the color. The yellow color of urine is due to the presence of a yellow pigment, urochrome. Deviations from normal color can be caused by certain drugs and various vegetables such as carrots, beets, and rhubarb.
[13] Which of the following is known as 'grave yard' of RBCs?
A.
Liver
B.
Bone marrow
C.
Spleen
D.
Appendix
Ans:
Spleen
Explanation :
The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, it is commonly called the 'graveyard of RBC'. The spleen plays an important role in the red blood cells also known as aserythrocytes and the digestive system. Old and damaged RBC's are destroyed in the spleen and It is known as the RBCs Graveyard. Function of spleen : The spleen is the largest organ of the lymphatic system.
[14] Silk is produced by -
A.
Egg of a silkworm
B.
Pupa of silkworm
C.
Larva of silkworm
D.
Insect itself
Ans:
Larva of silkworm
Explanation :
Silk is a natural protein fibre, some forms of which can be woven into textiles. The protein fibre of silk is composed mainly of fibroin and produced by certain insect larvae to form cocoons. The best-known type of silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori.
[15] Which of the following is an egg laying mammal?
A.
Bat
B.
Leafy anteater
C.
Whale
D.
Spiny anteater
Ans:
Spiny anteater
Explanation :
Monotremes are mammals that lay eggs instead of giving birth to live young like marsupials and placental mammals. The only surviving examples of monotremes are all indigenous to Australia and New Guinea, although there is evidence that they were once more widespread. Among living mammals they include the platypus and four species of echidnas (or spiny anteaters).
[16] The tallest plant in the world is -
A.
Eucalyptus
B.
Pterocarpus
C.
Polyalthia
D.
Tectona
Ans:
Eucalyptus
Explanation :
Eucalyptus regnans is the tallest of all flowering plants, and possibly the tallest of all plants, although no living specimens can make that claim. The tallest measured living specimen, named Centurion, stands 101 metres tall in Tasmania.
[17] The only bird that flies backward is -
A.
Sparrow
B.
Koel
C.
Siberian Crane
D.
Humming bird
Ans:
Humming bird
Explanation :
A humming bird can rotate each of its wings in a circle, allowing them to be the only bird which can fly forwards, backwards, up, down, sideways or sit in sheer space. To hover, hummingbirds move their wings forward and backward in a repeated figure eight, much like the arms of a swimmer treading water. Humming birds can move instantaneously in any direction, start from its perch at full speed, and doesn't necessarily slow up to land.
[18] Which of the following pairs has open type of circulatory system?
A.
Earthworm and Leech
B.
Man and Whale
C.
Cockroach and Silverfish
D.
Tadpole larva and Fish
Ans:
Cockroach and Silverfish
Explanation :
The open circulatory system is common to mollusks and arthropods. Open circulatory systems pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood. Cockroaches and silverfish have an open circulatory system. They don't have any blood vessels.
[19] Which of the following animals does not have nervous system?
A.
Leech
B.
Tapeworm
C.
Amoeba
D.
Snail
Ans:
Amoeba
Explanation :
The amoebas do not have nervous system, but they communicate by means of the interaction of the cellular membrane with the outside that surrounds to him. Like answer for example to an injurious stimulus, irritating or nutritional, the intracellular communication produces a reaction of the complete cell, moving away or approaching the respective stimulus.
[20] Plants differ from animals in having -
A.
locomotion
B.
metabolism
C.
localised growth
D.
catabolism
Ans:
localised growth
Explanation :
Plants produce new cells and grow only in their shoot and root apical meristems and leaf primordia; this is localized growth. In contrast, all parts of an animal's body grow (diffuse growth). From the time we are embryos until we are about 18 years old, all parts of our body grow simultaneously. Due to a plant's localized growth, an individual plant can have older, completely mature and highly functional leaves at the same time that it is still producing new leaves.
[21] Root nodules are commonly found in -
A.
Parasitic plants
B.
Epiphytic plants
C.
Leguminous plants
D.
Aquatic plants
Ans:
Leguminous plants
Explanation :
Leguminous plants are plants with root nodules. These plants need root nodules because the bacteria in these nodules covert nitrogen into nitrates and give it to the plant. The plant uses this nitrogen to make proteins and other stuff. In return the plants use the provide shelter and carbohydrates to the bacteria.
[22] A disease caused by Protozoa is -
A.
Common cold
B.
Pneumonia
C.
Malaria
D.
Cholera
Ans:
Malaria
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. Sporozoites are the form that is injected by the mosquito into humans.
[23] Which of the following is a Vitamin?
A.
Keratin
B.
Riboflavin
C.
Insulin
D.
Adrenalin
Ans:
Riboflavin
Explanation :
Riboflavin, also known as vitamin B2 is an easily absorbed colored micronutrient with a key role in maintaining health in humans and animals. It plays a key role in energy metabolism, and for the metabolism of fats, ketone bodies, carbohydrates, and proteins. Milk, cheese, leaf vegetables, liver, kidneys, legumes, yeast, mushrooms, and almonds are good sources of vitamin B2, but exposure to light destroys riboflavin.
[24] Which of the following organisms does not fit into the Cell Theory?
A.
Bacteria
B.
Virus
C.
Fungi
D.
Plants
Ans:
Virus
Explanation :
The cell theory states that all living things are made of cells, cells are the basic units of structure and function of living things, and that all cells come from other cells.
[25] The most abundant enzyme in the living world is -
A.
Rubisco
B.
invertase
C.
DNAse
D.
zymase
Ans:
Rubisco
Explanation :
Rubisco or ribulose 1, 5 bisphosphate carboxylase oxygenase is the plants enzyme which helps in the dark phase of photosynthesis (in the synthesis of ribulose sugar).
Explanation :
Octopus is an animal of class-Cephalopoda and phylum Mollusca. The shell is absent. It is found at bottom of the sea. It kills its prey with poisonous saliva. It can change its colour.
[6] Potential of air pollution increases when the ventilation coefficient is -
A.
> 119000 m2/s
B.
> 7,600 m2/s
C.
< 3.600 m2/s
D.
< 6,000 m2/s
Ans:
< 6,000 m2/s
Explanation :
The product of the maximum mixing depth and the average wind speed within the mixing depth is sometimes used as an indicator of the atmosphere's dispersive capability. This product is known as the ventilation coefficient (m2/s). Values of ventilation coefficient less than about 6000 m2is are considered indicative of high air pollution potential (Portelli and Lewis, 1987).
[7] Who among the following have venous heart?
A.
Mammals
B.
Reptilians
C.
Fishes
D.
Amphibians
Ans:
Fishes
Explanation :
There are over 20,000 species of fish, divided into three groups : bony fish, cartilaginous fish and jawless fish. Bony fish, which are the most numerous, have skeletons, of bone, and swim bladders (gas-filled organs) to keep them afloat. Cartilaginous fish, such as sharks, rays and raffish, are mostly marine hunters; they have skeletons made of cartilage and sandpaper-like skin. The primitive jawless fish have sucker-like mouths, and include lampreys and hagfish.
[8] In our body, antibodies are formed against pathogens in -
A.
liver by RBC
B.
blood by platelets
C.
brain by macrophages
D.
thymus by lymphocytes
Ans:
thymus by lymphocytes
Explanation :
0
[9] Prawn heart carries -
A.
no blood
B.
deoxygenated blood
C.
oxygenated blood
D.
mixed blood
Ans:
oxygenated blood
Explanation :
0
[10] Minamata disease was caused due to -
A.
Lead
B.
Cyanide
C.
Mercury
D.
Methyl isocyanate
Ans:
Mercury
Explanation :
Minamata disease is a methylmercury poisoning with neurological symptoms and caused by the daily consumption of large quantities of fish and shellfish that were heavily contaminated with the toxic chemical generated in chemical factories and then discharged into the sea.
[11] Nutrients are recycled in the atmosphere with the help of certain micro-organisms referred to as -
A.
producers
B.
consumers
C.
decomposers
D.
None of these
Ans:
decomposers
Explanation :
Decomposers recycle nutrients in the atmosphere.
[12] The yellow colour of urine is due to presence of -
A.
Bile
B.
Lymph
C.
Cholesterol
D.
Urochrorne
Ans:
Urochrorne
Explanation :
The color of normal urine is usually light yellow to amber. Generally, the greater the solute volume the deeper the color. The yellow color of urine is due to the presence of a yellow pigment, urochrome. Deviations from normal color can be caused by certain drugs and various vegetables such as carrots, beets, and rhubarb.
[13] Which of the following is known as 'grave yard' of RBCs?
A.
Liver
B.
Bone marrow
C.
Spleen
D.
Appendix
Ans:
Spleen
Explanation :
The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, it is commonly called the 'graveyard of RBC'. The spleen plays an important role in the red blood cells also known as aserythrocytes and the digestive system. Old and damaged RBC's are destroyed in the spleen and It is known as the RBCs Graveyard. Function of spleen : The spleen is the largest organ of the lymphatic system.
[14] Silk is produced by -
A.
Egg of a silkworm
B.
Pupa of silkworm
C.
Larva of silkworm
D.
Insect itself
Ans:
Larva of silkworm
Explanation :
Silk is a natural protein fibre, some forms of which can be woven into textiles. The protein fibre of silk is composed mainly of fibroin and produced by certain insect larvae to form cocoons. The best-known type of silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori.
[15] Which of the following is an egg laying mammal?
A.
Bat
B.
Leafy anteater
C.
Whale
D.
Spiny anteater
Ans:
Spiny anteater
Explanation :
Monotremes are mammals that lay eggs instead of giving birth to live young like marsupials and placental mammals. The only surviving examples of monotremes are all indigenous to Australia and New Guinea, although there is evidence that they were once more widespread. Among living mammals they include the platypus and four species of echidnas (or spiny anteaters).
[16] The tallest plant in the world is -
A.
Eucalyptus
B.
Pterocarpus
C.
Polyalthia
D.
Tectona
Ans:
Eucalyptus
Explanation :
Eucalyptus regnans is the tallest of all flowering plants, and possibly the tallest of all plants, although no living specimens can make that claim. The tallest measured living specimen, named Centurion, stands 101 metres tall in Tasmania.
[17] The only bird that flies backward is -
A.
Sparrow
B.
Koel
C.
Siberian Crane
D.
Humming bird
Ans:
Humming bird
Explanation :
A humming bird can rotate each of its wings in a circle, allowing them to be the only bird which can fly forwards, backwards, up, down, sideways or sit in sheer space. To hover, hummingbirds move their wings forward and backward in a repeated figure eight, much like the arms of a swimmer treading water. Humming birds can move instantaneously in any direction, start from its perch at full speed, and doesn't necessarily slow up to land.
[18] Which of the following pairs has open type of circulatory system?
A.
Earthworm and Leech
B.
Man and Whale
C.
Cockroach and Silverfish
D.
Tadpole larva and Fish
Ans:
Cockroach and Silverfish
Explanation :
The open circulatory system is common to mollusks and arthropods. Open circulatory systems pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood. Cockroaches and silverfish have an open circulatory system. They don't have any blood vessels.
[19] Which of the following animals does not have nervous system?
A.
Leech
B.
Tapeworm
C.
Amoeba
D.
Snail
Ans:
Amoeba
Explanation :
The amoebas do not have nervous system, but they communicate by means of the interaction of the cellular membrane with the outside that surrounds to him. Like answer for example to an injurious stimulus, irritating or nutritional, the intracellular communication produces a reaction of the complete cell, moving away or approaching the respective stimulus.
[20] Plants differ from animals in having -
A.
locomotion
B.
metabolism
C.
localised growth
D.
catabolism
Ans:
localised growth
Explanation :
Plants produce new cells and grow only in their shoot and root apical meristems and leaf primordia; this is localized growth. In contrast, all parts of an animal's body grow (diffuse growth). From the time we are embryos until we are about 18 years old, all parts of our body grow simultaneously. Due to a plant's localized growth, an individual plant can have older, completely mature and highly functional leaves at the same time that it is still producing new leaves.
[21] Root nodules are commonly found in -
A.
Parasitic plants
B.
Epiphytic plants
C.
Leguminous plants
D.
Aquatic plants
Ans:
Leguminous plants
Explanation :
Leguminous plants are plants with root nodules. These plants need root nodules because the bacteria in these nodules covert nitrogen into nitrates and give it to the plant. The plant uses this nitrogen to make proteins and other stuff. In return the plants use the provide shelter and carbohydrates to the bacteria.
[22] A disease caused by Protozoa is -
A.
Common cold
B.
Pneumonia
C.
Malaria
D.
Cholera
Ans:
Malaria
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. Sporozoites are the form that is injected by the mosquito into humans.
[23] Which of the following is a Vitamin?
A.
Keratin
B.
Riboflavin
C.
Insulin
D.
Adrenalin
Ans:
Riboflavin
Explanation :
Riboflavin, also known as vitamin B2 is an easily absorbed colored micronutrient with a key role in maintaining health in humans and animals. It plays a key role in energy metabolism, and for the metabolism of fats, ketone bodies, carbohydrates, and proteins. Milk, cheese, leaf vegetables, liver, kidneys, legumes, yeast, mushrooms, and almonds are good sources of vitamin B2, but exposure to light destroys riboflavin.
[24] Which of the following organisms does not fit into the Cell Theory?
A.
Bacteria
B.
Virus
C.
Fungi
D.
Plants
Ans:
Virus
Explanation :
The cell theory states that all living things are made of cells, cells are the basic units of structure and function of living things, and that all cells come from other cells.
[25] The most abundant enzyme in the living world is -
A.
Rubisco
B.
invertase
C.
DNAse
D.
zymase
Ans:
Rubisco
Explanation :
Rubisco or ribulose 1, 5 bisphosphate carboxylase oxygenase is the plants enzyme which helps in the dark phase of photosynthesis (in the synthesis of ribulose sugar).
Explanation :
There are over 20,000 species of fish, divided into three groups : bony fish, cartilaginous fish and jawless fish. Bony fish, which are the most numerous, have skeletons, of bone, and swim bladders (gas-filled organs) to keep them afloat. Cartilaginous fish, such as sharks, rays and raffish, are mostly marine hunters; they have skeletons made of cartilage and sandpaper-like skin. The primitive jawless fish have sucker-like mouths, and include lampreys and hagfish.
[8] In our body, antibodies are formed against pathogens in -
A.
liver by RBC
B.
blood by platelets
C.
brain by macrophages
D.
thymus by lymphocytes
Ans:
thymus by lymphocytes
Explanation :
0
[9] Prawn heart carries -
A.
no blood
B.
deoxygenated blood
C.
oxygenated blood
D.
mixed blood
Ans:
oxygenated blood
Explanation :
0
[10] Minamata disease was caused due to -
A.
Lead
B.
Cyanide
C.
Mercury
D.
Methyl isocyanate
Ans:
Mercury
Explanation :
Minamata disease is a methylmercury poisoning with neurological symptoms and caused by the daily consumption of large quantities of fish and shellfish that were heavily contaminated with the toxic chemical generated in chemical factories and then discharged into the sea.
[11] Nutrients are recycled in the atmosphere with the help of certain micro-organisms referred to as -
A.
producers
B.
consumers
C.
decomposers
D.
None of these
Ans:
decomposers
Explanation :
Decomposers recycle nutrients in the atmosphere.
[12] The yellow colour of urine is due to presence of -
A.
Bile
B.
Lymph
C.
Cholesterol
D.
Urochrorne
Ans:
Urochrorne
Explanation :
The color of normal urine is usually light yellow to amber. Generally, the greater the solute volume the deeper the color. The yellow color of urine is due to the presence of a yellow pigment, urochrome. Deviations from normal color can be caused by certain drugs and various vegetables such as carrots, beets, and rhubarb.
[13] Which of the following is known as 'grave yard' of RBCs?
A.
Liver
B.
Bone marrow
C.
Spleen
D.
Appendix
Ans:
Spleen
Explanation :
The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, it is commonly called the 'graveyard of RBC'. The spleen plays an important role in the red blood cells also known as aserythrocytes and the digestive system. Old and damaged RBC's are destroyed in the spleen and It is known as the RBCs Graveyard. Function of spleen : The spleen is the largest organ of the lymphatic system.
[14] Silk is produced by -
A.
Egg of a silkworm
B.
Pupa of silkworm
C.
Larva of silkworm
D.
Insect itself
Ans:
Larva of silkworm
Explanation :
Silk is a natural protein fibre, some forms of which can be woven into textiles. The protein fibre of silk is composed mainly of fibroin and produced by certain insect larvae to form cocoons. The best-known type of silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori.
[15] Which of the following is an egg laying mammal?
A.
Bat
B.
Leafy anteater
C.
Whale
D.
Spiny anteater
Ans:
Spiny anteater
Explanation :
Monotremes are mammals that lay eggs instead of giving birth to live young like marsupials and placental mammals. The only surviving examples of monotremes are all indigenous to Australia and New Guinea, although there is evidence that they were once more widespread. Among living mammals they include the platypus and four species of echidnas (or spiny anteaters).
[16] The tallest plant in the world is -
A.
Eucalyptus
B.
Pterocarpus
C.
Polyalthia
D.
Tectona
Ans:
Eucalyptus
Explanation :
Eucalyptus regnans is the tallest of all flowering plants, and possibly the tallest of all plants, although no living specimens can make that claim. The tallest measured living specimen, named Centurion, stands 101 metres tall in Tasmania.
[17] The only bird that flies backward is -
A.
Sparrow
B.
Koel
C.
Siberian Crane
D.
Humming bird
Ans:
Humming bird
Explanation :
A humming bird can rotate each of its wings in a circle, allowing them to be the only bird which can fly forwards, backwards, up, down, sideways or sit in sheer space. To hover, hummingbirds move their wings forward and backward in a repeated figure eight, much like the arms of a swimmer treading water. Humming birds can move instantaneously in any direction, start from its perch at full speed, and doesn't necessarily slow up to land.
[18] Which of the following pairs has open type of circulatory system?
A.
Earthworm and Leech
B.
Man and Whale
C.
Cockroach and Silverfish
D.
Tadpole larva and Fish
Ans:
Cockroach and Silverfish
Explanation :
The open circulatory system is common to mollusks and arthropods. Open circulatory systems pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood. Cockroaches and silverfish have an open circulatory system. They don't have any blood vessels.
[19] Which of the following animals does not have nervous system?
A.
Leech
B.
Tapeworm
C.
Amoeba
D.
Snail
Ans:
Amoeba
Explanation :
The amoebas do not have nervous system, but they communicate by means of the interaction of the cellular membrane with the outside that surrounds to him. Like answer for example to an injurious stimulus, irritating or nutritional, the intracellular communication produces a reaction of the complete cell, moving away or approaching the respective stimulus.
[20] Plants differ from animals in having -
A.
locomotion
B.
metabolism
C.
localised growth
D.
catabolism
Ans:
localised growth
Explanation :
Plants produce new cells and grow only in their shoot and root apical meristems and leaf primordia; this is localized growth. In contrast, all parts of an animal's body grow (diffuse growth). From the time we are embryos until we are about 18 years old, all parts of our body grow simultaneously. Due to a plant's localized growth, an individual plant can have older, completely mature and highly functional leaves at the same time that it is still producing new leaves.
[21] Root nodules are commonly found in -
A.
Parasitic plants
B.
Epiphytic plants
C.
Leguminous plants
D.
Aquatic plants
Ans:
Leguminous plants
Explanation :
Leguminous plants are plants with root nodules. These plants need root nodules because the bacteria in these nodules covert nitrogen into nitrates and give it to the plant. The plant uses this nitrogen to make proteins and other stuff. In return the plants use the provide shelter and carbohydrates to the bacteria.
[22] A disease caused by Protozoa is -
A.
Common cold
B.
Pneumonia
C.
Malaria
D.
Cholera
Ans:
Malaria
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. Sporozoites are the form that is injected by the mosquito into humans.
[23] Which of the following is a Vitamin?
A.
Keratin
B.
Riboflavin
C.
Insulin
D.
Adrenalin
Ans:
Riboflavin
Explanation :
Riboflavin, also known as vitamin B2 is an easily absorbed colored micronutrient with a key role in maintaining health in humans and animals. It plays a key role in energy metabolism, and for the metabolism of fats, ketone bodies, carbohydrates, and proteins. Milk, cheese, leaf vegetables, liver, kidneys, legumes, yeast, mushrooms, and almonds are good sources of vitamin B2, but exposure to light destroys riboflavin.
[24] Which of the following organisms does not fit into the Cell Theory?
A.
Bacteria
B.
Virus
C.
Fungi
D.
Plants
Ans:
Virus
Explanation :
The cell theory states that all living things are made of cells, cells are the basic units of structure and function of living things, and that all cells come from other cells.
[25] The most abundant enzyme in the living world is -
A.
Rubisco
B.
invertase
C.
DNAse
D.
zymase
Ans:
Rubisco
Explanation :
Rubisco or ribulose 1, 5 bisphosphate carboxylase oxygenase is the plants enzyme which helps in the dark phase of photosynthesis (in the synthesis of ribulose sugar).
Explanation :
0
[10] Minamata disease was caused due to -
A.
Lead
B.
Cyanide
C.
Mercury
D.
Methyl isocyanate
Ans:
Mercury
Explanation :
Minamata disease is a methylmercury poisoning with neurological symptoms and caused by the daily consumption of large quantities of fish and shellfish that were heavily contaminated with the toxic chemical generated in chemical factories and then discharged into the sea.
[11] Nutrients are recycled in the atmosphere with the help of certain micro-organisms referred to as -
A.
producers
B.
consumers
C.
decomposers
D.
None of these
Ans:
decomposers
Explanation :
Decomposers recycle nutrients in the atmosphere.
[12] The yellow colour of urine is due to presence of -
A.
Bile
B.
Lymph
C.
Cholesterol
D.
Urochrorne
Ans:
Urochrorne
Explanation :
The color of normal urine is usually light yellow to amber. Generally, the greater the solute volume the deeper the color. The yellow color of urine is due to the presence of a yellow pigment, urochrome. Deviations from normal color can be caused by certain drugs and various vegetables such as carrots, beets, and rhubarb.
[13] Which of the following is known as 'grave yard' of RBCs?
A.
Liver
B.
Bone marrow
C.
Spleen
D.
Appendix
Ans:
Spleen
Explanation :
The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, it is commonly called the 'graveyard of RBC'. The spleen plays an important role in the red blood cells also known as aserythrocytes and the digestive system. Old and damaged RBC's are destroyed in the spleen and It is known as the RBCs Graveyard. Function of spleen : The spleen is the largest organ of the lymphatic system.
[14] Silk is produced by -
A.
Egg of a silkworm
B.
Pupa of silkworm
C.
Larva of silkworm
D.
Insect itself
Ans:
Larva of silkworm
Explanation :
Silk is a natural protein fibre, some forms of which can be woven into textiles. The protein fibre of silk is composed mainly of fibroin and produced by certain insect larvae to form cocoons. The best-known type of silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori.
[15] Which of the following is an egg laying mammal?
A.
Bat
B.
Leafy anteater
C.
Whale
D.
Spiny anteater
Ans:
Spiny anteater
Explanation :
Monotremes are mammals that lay eggs instead of giving birth to live young like marsupials and placental mammals. The only surviving examples of monotremes are all indigenous to Australia and New Guinea, although there is evidence that they were once more widespread. Among living mammals they include the platypus and four species of echidnas (or spiny anteaters).
[16] The tallest plant in the world is -
A.
Eucalyptus
B.
Pterocarpus
C.
Polyalthia
D.
Tectona
Ans:
Eucalyptus
Explanation :
Eucalyptus regnans is the tallest of all flowering plants, and possibly the tallest of all plants, although no living specimens can make that claim. The tallest measured living specimen, named Centurion, stands 101 metres tall in Tasmania.
[17] The only bird that flies backward is -
A.
Sparrow
B.
Koel
C.
Siberian Crane
D.
Humming bird
Ans:
Humming bird
Explanation :
A humming bird can rotate each of its wings in a circle, allowing them to be the only bird which can fly forwards, backwards, up, down, sideways or sit in sheer space. To hover, hummingbirds move their wings forward and backward in a repeated figure eight, much like the arms of a swimmer treading water. Humming birds can move instantaneously in any direction, start from its perch at full speed, and doesn't necessarily slow up to land.
[18] Which of the following pairs has open type of circulatory system?
A.
Earthworm and Leech
B.
Man and Whale
C.
Cockroach and Silverfish
D.
Tadpole larva and Fish
Ans:
Cockroach and Silverfish
Explanation :
The open circulatory system is common to mollusks and arthropods. Open circulatory systems pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood. Cockroaches and silverfish have an open circulatory system. They don't have any blood vessels.
[19] Which of the following animals does not have nervous system?
A.
Leech
B.
Tapeworm
C.
Amoeba
D.
Snail
Ans:
Amoeba
Explanation :
The amoebas do not have nervous system, but they communicate by means of the interaction of the cellular membrane with the outside that surrounds to him. Like answer for example to an injurious stimulus, irritating or nutritional, the intracellular communication produces a reaction of the complete cell, moving away or approaching the respective stimulus.
[20] Plants differ from animals in having -
A.
locomotion
B.
metabolism
C.
localised growth
D.
catabolism
Ans:
localised growth
Explanation :
Plants produce new cells and grow only in their shoot and root apical meristems and leaf primordia; this is localized growth. In contrast, all parts of an animal's body grow (diffuse growth). From the time we are embryos until we are about 18 years old, all parts of our body grow simultaneously. Due to a plant's localized growth, an individual plant can have older, completely mature and highly functional leaves at the same time that it is still producing new leaves.
[21] Root nodules are commonly found in -
A.
Parasitic plants
B.
Epiphytic plants
C.
Leguminous plants
D.
Aquatic plants
Ans:
Leguminous plants
Explanation :
Leguminous plants are plants with root nodules. These plants need root nodules because the bacteria in these nodules covert nitrogen into nitrates and give it to the plant. The plant uses this nitrogen to make proteins and other stuff. In return the plants use the provide shelter and carbohydrates to the bacteria.
[22] A disease caused by Protozoa is -
A.
Common cold
B.
Pneumonia
C.
Malaria
D.
Cholera
Ans:
Malaria
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. Sporozoites are the form that is injected by the mosquito into humans.
[23] Which of the following is a Vitamin?
A.
Keratin
B.
Riboflavin
C.
Insulin
D.
Adrenalin
Ans:
Riboflavin
Explanation :
Riboflavin, also known as vitamin B2 is an easily absorbed colored micronutrient with a key role in maintaining health in humans and animals. It plays a key role in energy metabolism, and for the metabolism of fats, ketone bodies, carbohydrates, and proteins. Milk, cheese, leaf vegetables, liver, kidneys, legumes, yeast, mushrooms, and almonds are good sources of vitamin B2, but exposure to light destroys riboflavin.
[24] Which of the following organisms does not fit into the Cell Theory?
A.
Bacteria
B.
Virus
C.
Fungi
D.
Plants
Ans:
Virus
Explanation :
The cell theory states that all living things are made of cells, cells are the basic units of structure and function of living things, and that all cells come from other cells.
[25] The most abundant enzyme in the living world is -
A.
Rubisco
B.
invertase
C.
DNAse
D.
zymase
Ans:
Rubisco
Explanation :
Rubisco or ribulose 1, 5 bisphosphate carboxylase oxygenase is the plants enzyme which helps in the dark phase of photosynthesis (in the synthesis of ribulose sugar).
Explanation :
Decomposers recycle nutrients in the atmosphere.
[12] The yellow colour of urine is due to presence of -
A.
Bile
B.
Lymph
C.
Cholesterol
D.
Urochrorne
Ans:
Urochrorne
Explanation :
The color of normal urine is usually light yellow to amber. Generally, the greater the solute volume the deeper the color. The yellow color of urine is due to the presence of a yellow pigment, urochrome. Deviations from normal color can be caused by certain drugs and various vegetables such as carrots, beets, and rhubarb.
[13] Which of the following is known as 'grave yard' of RBCs?
A.
Liver
B.
Bone marrow
C.
Spleen
D.
Appendix
Ans:
Spleen
Explanation :
The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, it is commonly called the 'graveyard of RBC'. The spleen plays an important role in the red blood cells also known as aserythrocytes and the digestive system. Old and damaged RBC's are destroyed in the spleen and It is known as the RBCs Graveyard. Function of spleen : The spleen is the largest organ of the lymphatic system.
[14] Silk is produced by -
A.
Egg of a silkworm
B.
Pupa of silkworm
C.
Larva of silkworm
D.
Insect itself
Ans:
Larva of silkworm
Explanation :
Silk is a natural protein fibre, some forms of which can be woven into textiles. The protein fibre of silk is composed mainly of fibroin and produced by certain insect larvae to form cocoons. The best-known type of silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori.
[15] Which of the following is an egg laying mammal?
A.
Bat
B.
Leafy anteater
C.
Whale
D.
Spiny anteater
Ans:
Spiny anteater
Explanation :
Monotremes are mammals that lay eggs instead of giving birth to live young like marsupials and placental mammals. The only surviving examples of monotremes are all indigenous to Australia and New Guinea, although there is evidence that they were once more widespread. Among living mammals they include the platypus and four species of echidnas (or spiny anteaters).
[16] The tallest plant in the world is -
A.
Eucalyptus
B.
Pterocarpus
C.
Polyalthia
D.
Tectona
Ans:
Eucalyptus
Explanation :
Eucalyptus regnans is the tallest of all flowering plants, and possibly the tallest of all plants, although no living specimens can make that claim. The tallest measured living specimen, named Centurion, stands 101 metres tall in Tasmania.
[17] The only bird that flies backward is -
A.
Sparrow
B.
Koel
C.
Siberian Crane
D.
Humming bird
Ans:
Humming bird
Explanation :
A humming bird can rotate each of its wings in a circle, allowing them to be the only bird which can fly forwards, backwards, up, down, sideways or sit in sheer space. To hover, hummingbirds move their wings forward and backward in a repeated figure eight, much like the arms of a swimmer treading water. Humming birds can move instantaneously in any direction, start from its perch at full speed, and doesn't necessarily slow up to land.
[18] Which of the following pairs has open type of circulatory system?
A.
Earthworm and Leech
B.
Man and Whale
C.
Cockroach and Silverfish
D.
Tadpole larva and Fish
Ans:
Cockroach and Silverfish
Explanation :
The open circulatory system is common to mollusks and arthropods. Open circulatory systems pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood. Cockroaches and silverfish have an open circulatory system. They don't have any blood vessels.
[19] Which of the following animals does not have nervous system?
A.
Leech
B.
Tapeworm
C.
Amoeba
D.
Snail
Ans:
Amoeba
Explanation :
The amoebas do not have nervous system, but they communicate by means of the interaction of the cellular membrane with the outside that surrounds to him. Like answer for example to an injurious stimulus, irritating or nutritional, the intracellular communication produces a reaction of the complete cell, moving away or approaching the respective stimulus.
[20] Plants differ from animals in having -
A.
locomotion
B.
metabolism
C.
localised growth
D.
catabolism
Ans:
localised growth
Explanation :
Plants produce new cells and grow only in their shoot and root apical meristems and leaf primordia; this is localized growth. In contrast, all parts of an animal's body grow (diffuse growth). From the time we are embryos until we are about 18 years old, all parts of our body grow simultaneously. Due to a plant's localized growth, an individual plant can have older, completely mature and highly functional leaves at the same time that it is still producing new leaves.
[21] Root nodules are commonly found in -
A.
Parasitic plants
B.
Epiphytic plants
C.
Leguminous plants
D.
Aquatic plants
Ans:
Leguminous plants
Explanation :
Leguminous plants are plants with root nodules. These plants need root nodules because the bacteria in these nodules covert nitrogen into nitrates and give it to the plant. The plant uses this nitrogen to make proteins and other stuff. In return the plants use the provide shelter and carbohydrates to the bacteria.
[22] A disease caused by Protozoa is -
A.
Common cold
B.
Pneumonia
C.
Malaria
D.
Cholera
Ans:
Malaria
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. Sporozoites are the form that is injected by the mosquito into humans.
[23] Which of the following is a Vitamin?
A.
Keratin
B.
Riboflavin
C.
Insulin
D.
Adrenalin
Ans:
Riboflavin
Explanation :
Riboflavin, also known as vitamin B2 is an easily absorbed colored micronutrient with a key role in maintaining health in humans and animals. It plays a key role in energy metabolism, and for the metabolism of fats, ketone bodies, carbohydrates, and proteins. Milk, cheese, leaf vegetables, liver, kidneys, legumes, yeast, mushrooms, and almonds are good sources of vitamin B2, but exposure to light destroys riboflavin.
[24] Which of the following organisms does not fit into the Cell Theory?
A.
Bacteria
B.
Virus
C.
Fungi
D.
Plants
Ans:
Virus
Explanation :
The cell theory states that all living things are made of cells, cells are the basic units of structure and function of living things, and that all cells come from other cells.
[25] The most abundant enzyme in the living world is -
A.
Rubisco
B.
invertase
C.
DNAse
D.
zymase
Ans:
Rubisco
Explanation :
Rubisco or ribulose 1, 5 bisphosphate carboxylase oxygenase is the plants enzyme which helps in the dark phase of photosynthesis (in the synthesis of ribulose sugar).
Explanation :
The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, it is commonly called the 'graveyard of RBC'. The spleen plays an important role in the red blood cells also known as aserythrocytes and the digestive system. Old and damaged RBC's are destroyed in the spleen and It is known as the RBCs Graveyard. Function of spleen : The spleen is the largest organ of the lymphatic system.
[14] Silk is produced by -
A.
Egg of a silkworm
B.
Pupa of silkworm
C.
Larva of silkworm
D.
Insect itself
Ans:
Larva of silkworm
Explanation :
Silk is a natural protein fibre, some forms of which can be woven into textiles. The protein fibre of silk is composed mainly of fibroin and produced by certain insect larvae to form cocoons. The best-known type of silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori.
[15] Which of the following is an egg laying mammal?
A.
Bat
B.
Leafy anteater
C.
Whale
D.
Spiny anteater
Ans:
Spiny anteater
Explanation :
Monotremes are mammals that lay eggs instead of giving birth to live young like marsupials and placental mammals. The only surviving examples of monotremes are all indigenous to Australia and New Guinea, although there is evidence that they were once more widespread. Among living mammals they include the platypus and four species of echidnas (or spiny anteaters).
[16] The tallest plant in the world is -
A.
Eucalyptus
B.
Pterocarpus
C.
Polyalthia
D.
Tectona
Ans:
Eucalyptus
Explanation :
Eucalyptus regnans is the tallest of all flowering plants, and possibly the tallest of all plants, although no living specimens can make that claim. The tallest measured living specimen, named Centurion, stands 101 metres tall in Tasmania.
[17] The only bird that flies backward is -
A.
Sparrow
B.
Koel
C.
Siberian Crane
D.
Humming bird
Ans:
Humming bird
Explanation :
A humming bird can rotate each of its wings in a circle, allowing them to be the only bird which can fly forwards, backwards, up, down, sideways or sit in sheer space. To hover, hummingbirds move their wings forward and backward in a repeated figure eight, much like the arms of a swimmer treading water. Humming birds can move instantaneously in any direction, start from its perch at full speed, and doesn't necessarily slow up to land.
[18] Which of the following pairs has open type of circulatory system?
A.
Earthworm and Leech
B.
Man and Whale
C.
Cockroach and Silverfish
D.
Tadpole larva and Fish
Ans:
Cockroach and Silverfish
Explanation :
The open circulatory system is common to mollusks and arthropods. Open circulatory systems pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood. Cockroaches and silverfish have an open circulatory system. They don't have any blood vessels.
[19] Which of the following animals does not have nervous system?
A.
Leech
B.
Tapeworm
C.
Amoeba
D.
Snail
Ans:
Amoeba
Explanation :
The amoebas do not have nervous system, but they communicate by means of the interaction of the cellular membrane with the outside that surrounds to him. Like answer for example to an injurious stimulus, irritating or nutritional, the intracellular communication produces a reaction of the complete cell, moving away or approaching the respective stimulus.
[20] Plants differ from animals in having -
A.
locomotion
B.
metabolism
C.
localised growth
D.
catabolism
Ans:
localised growth
Explanation :
Plants produce new cells and grow only in their shoot and root apical meristems and leaf primordia; this is localized growth. In contrast, all parts of an animal's body grow (diffuse growth). From the time we are embryos until we are about 18 years old, all parts of our body grow simultaneously. Due to a plant's localized growth, an individual plant can have older, completely mature and highly functional leaves at the same time that it is still producing new leaves.
[21] Root nodules are commonly found in -
A.
Parasitic plants
B.
Epiphytic plants
C.
Leguminous plants
D.
Aquatic plants
Ans:
Leguminous plants
Explanation :
Leguminous plants are plants with root nodules. These plants need root nodules because the bacteria in these nodules covert nitrogen into nitrates and give it to the plant. The plant uses this nitrogen to make proteins and other stuff. In return the plants use the provide shelter and carbohydrates to the bacteria.
[22] A disease caused by Protozoa is -
A.
Common cold
B.
Pneumonia
C.
Malaria
D.
Cholera
Ans:
Malaria
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. Sporozoites are the form that is injected by the mosquito into humans.
[23] Which of the following is a Vitamin?
A.
Keratin
B.
Riboflavin
C.
Insulin
D.
Adrenalin
Ans:
Riboflavin
Explanation :
Riboflavin, also known as vitamin B2 is an easily absorbed colored micronutrient with a key role in maintaining health in humans and animals. It plays a key role in energy metabolism, and for the metabolism of fats, ketone bodies, carbohydrates, and proteins. Milk, cheese, leaf vegetables, liver, kidneys, legumes, yeast, mushrooms, and almonds are good sources of vitamin B2, but exposure to light destroys riboflavin.
[24] Which of the following organisms does not fit into the Cell Theory?
A.
Bacteria
B.
Virus
C.
Fungi
D.
Plants
Ans:
Virus
Explanation :
The cell theory states that all living things are made of cells, cells are the basic units of structure and function of living things, and that all cells come from other cells.
[25] The most abundant enzyme in the living world is -
A.
Rubisco
B.
invertase
C.
DNAse
D.
zymase
Ans:
Rubisco
Explanation :
Rubisco or ribulose 1, 5 bisphosphate carboxylase oxygenase is the plants enzyme which helps in the dark phase of photosynthesis (in the synthesis of ribulose sugar).
Explanation :
Monotremes are mammals that lay eggs instead of giving birth to live young like marsupials and placental mammals. The only surviving examples of monotremes are all indigenous to Australia and New Guinea, although there is evidence that they were once more widespread. Among living mammals they include the platypus and four species of echidnas (or spiny anteaters).
[16] The tallest plant in the world is -
A.
Eucalyptus
B.
Pterocarpus
C.
Polyalthia
D.
Tectona
Ans:
Eucalyptus
Explanation :
Eucalyptus regnans is the tallest of all flowering plants, and possibly the tallest of all plants, although no living specimens can make that claim. The tallest measured living specimen, named Centurion, stands 101 metres tall in Tasmania.
[17] The only bird that flies backward is -
A.
Sparrow
B.
Koel
C.
Siberian Crane
D.
Humming bird
Ans:
Humming bird
Explanation :
A humming bird can rotate each of its wings in a circle, allowing them to be the only bird which can fly forwards, backwards, up, down, sideways or sit in sheer space. To hover, hummingbirds move their wings forward and backward in a repeated figure eight, much like the arms of a swimmer treading water. Humming birds can move instantaneously in any direction, start from its perch at full speed, and doesn't necessarily slow up to land.
[18] Which of the following pairs has open type of circulatory system?
A.
Earthworm and Leech
B.
Man and Whale
C.
Cockroach and Silverfish
D.
Tadpole larva and Fish
Ans:
Cockroach and Silverfish
Explanation :
The open circulatory system is common to mollusks and arthropods. Open circulatory systems pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood. Cockroaches and silverfish have an open circulatory system. They don't have any blood vessels.
[19] Which of the following animals does not have nervous system?
A.
Leech
B.
Tapeworm
C.
Amoeba
D.
Snail
Ans:
Amoeba
Explanation :
The amoebas do not have nervous system, but they communicate by means of the interaction of the cellular membrane with the outside that surrounds to him. Like answer for example to an injurious stimulus, irritating or nutritional, the intracellular communication produces a reaction of the complete cell, moving away or approaching the respective stimulus.
[20] Plants differ from animals in having -
A.
locomotion
B.
metabolism
C.
localised growth
D.
catabolism
Ans:
localised growth
Explanation :
Plants produce new cells and grow only in their shoot and root apical meristems and leaf primordia; this is localized growth. In contrast, all parts of an animal's body grow (diffuse growth). From the time we are embryos until we are about 18 years old, all parts of our body grow simultaneously. Due to a plant's localized growth, an individual plant can have older, completely mature and highly functional leaves at the same time that it is still producing new leaves.
[21] Root nodules are commonly found in -
A.
Parasitic plants
B.
Epiphytic plants
C.
Leguminous plants
D.
Aquatic plants
Ans:
Leguminous plants
Explanation :
Leguminous plants are plants with root nodules. These plants need root nodules because the bacteria in these nodules covert nitrogen into nitrates and give it to the plant. The plant uses this nitrogen to make proteins and other stuff. In return the plants use the provide shelter and carbohydrates to the bacteria.
[22] A disease caused by Protozoa is -
A.
Common cold
B.
Pneumonia
C.
Malaria
D.
Cholera
Ans:
Malaria
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. Sporozoites are the form that is injected by the mosquito into humans.
[23] Which of the following is a Vitamin?
A.
Keratin
B.
Riboflavin
C.
Insulin
D.
Adrenalin
Ans:
Riboflavin
Explanation :
Riboflavin, also known as vitamin B2 is an easily absorbed colored micronutrient with a key role in maintaining health in humans and animals. It plays a key role in energy metabolism, and for the metabolism of fats, ketone bodies, carbohydrates, and proteins. Milk, cheese, leaf vegetables, liver, kidneys, legumes, yeast, mushrooms, and almonds are good sources of vitamin B2, but exposure to light destroys riboflavin.
[24] Which of the following organisms does not fit into the Cell Theory?
A.
Bacteria
B.
Virus
C.
Fungi
D.
Plants
Ans:
Virus
Explanation :
The cell theory states that all living things are made of cells, cells are the basic units of structure and function of living things, and that all cells come from other cells.
[25] The most abundant enzyme in the living world is -
A.
Rubisco
B.
invertase
C.
DNAse
D.
zymase
Ans:
Rubisco
Explanation :
Rubisco or ribulose 1, 5 bisphosphate carboxylase oxygenase is the plants enzyme which helps in the dark phase of photosynthesis (in the synthesis of ribulose sugar).
Explanation :
A humming bird can rotate each of its wings in a circle, allowing them to be the only bird which can fly forwards, backwards, up, down, sideways or sit in sheer space. To hover, hummingbirds move their wings forward and backward in a repeated figure eight, much like the arms of a swimmer treading water. Humming birds can move instantaneously in any direction, start from its perch at full speed, and doesn't necessarily slow up to land.
[18] Which of the following pairs has open type of circulatory system?
A.
Earthworm and Leech
B.
Man and Whale
C.
Cockroach and Silverfish
D.
Tadpole larva and Fish
Ans:
Cockroach and Silverfish
Explanation :
The open circulatory system is common to mollusks and arthropods. Open circulatory systems pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood. Cockroaches and silverfish have an open circulatory system. They don't have any blood vessels.
[19] Which of the following animals does not have nervous system?
A.
Leech
B.
Tapeworm
C.
Amoeba
D.
Snail
Ans:
Amoeba
Explanation :
The amoebas do not have nervous system, but they communicate by means of the interaction of the cellular membrane with the outside that surrounds to him. Like answer for example to an injurious stimulus, irritating or nutritional, the intracellular communication produces a reaction of the complete cell, moving away or approaching the respective stimulus.
[20] Plants differ from animals in having -
A.
locomotion
B.
metabolism
C.
localised growth
D.
catabolism
Ans:
localised growth
Explanation :
Plants produce new cells and grow only in their shoot and root apical meristems and leaf primordia; this is localized growth. In contrast, all parts of an animal's body grow (diffuse growth). From the time we are embryos until we are about 18 years old, all parts of our body grow simultaneously. Due to a plant's localized growth, an individual plant can have older, completely mature and highly functional leaves at the same time that it is still producing new leaves.
[21] Root nodules are commonly found in -
A.
Parasitic plants
B.
Epiphytic plants
C.
Leguminous plants
D.
Aquatic plants
Ans:
Leguminous plants
Explanation :
Leguminous plants are plants with root nodules. These plants need root nodules because the bacteria in these nodules covert nitrogen into nitrates and give it to the plant. The plant uses this nitrogen to make proteins and other stuff. In return the plants use the provide shelter and carbohydrates to the bacteria.
[22] A disease caused by Protozoa is -
A.
Common cold
B.
Pneumonia
C.
Malaria
D.
Cholera
Ans:
Malaria
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. Sporozoites are the form that is injected by the mosquito into humans.
[23] Which of the following is a Vitamin?
A.
Keratin
B.
Riboflavin
C.
Insulin
D.
Adrenalin
Ans:
Riboflavin
Explanation :
Riboflavin, also known as vitamin B2 is an easily absorbed colored micronutrient with a key role in maintaining health in humans and animals. It plays a key role in energy metabolism, and for the metabolism of fats, ketone bodies, carbohydrates, and proteins. Milk, cheese, leaf vegetables, liver, kidneys, legumes, yeast, mushrooms, and almonds are good sources of vitamin B2, but exposure to light destroys riboflavin.
[24] Which of the following organisms does not fit into the Cell Theory?
A.
Bacteria
B.
Virus
C.
Fungi
D.
Plants
Ans:
Virus
Explanation :
The cell theory states that all living things are made of cells, cells are the basic units of structure and function of living things, and that all cells come from other cells.
[25] The most abundant enzyme in the living world is -
A.
Rubisco
B.
invertase
C.
DNAse
D.
zymase
Ans:
Rubisco
Explanation :
Rubisco or ribulose 1, 5 bisphosphate carboxylase oxygenase is the plants enzyme which helps in the dark phase of photosynthesis (in the synthesis of ribulose sugar).
Explanation :
The amoebas do not have nervous system, but they communicate by means of the interaction of the cellular membrane with the outside that surrounds to him. Like answer for example to an injurious stimulus, irritating or nutritional, the intracellular communication produces a reaction of the complete cell, moving away or approaching the respective stimulus.
[20] Plants differ from animals in having -
A.
locomotion
B.
metabolism
C.
localised growth
D.
catabolism
Ans:
localised growth
Explanation :
Plants produce new cells and grow only in their shoot and root apical meristems and leaf primordia; this is localized growth. In contrast, all parts of an animal's body grow (diffuse growth). From the time we are embryos until we are about 18 years old, all parts of our body grow simultaneously. Due to a plant's localized growth, an individual plant can have older, completely mature and highly functional leaves at the same time that it is still producing new leaves.
[21] Root nodules are commonly found in -
A.
Parasitic plants
B.
Epiphytic plants
C.
Leguminous plants
D.
Aquatic plants
Ans:
Leguminous plants
Explanation :
Leguminous plants are plants with root nodules. These plants need root nodules because the bacteria in these nodules covert nitrogen into nitrates and give it to the plant. The plant uses this nitrogen to make proteins and other stuff. In return the plants use the provide shelter and carbohydrates to the bacteria.
[22] A disease caused by Protozoa is -
A.
Common cold
B.
Pneumonia
C.
Malaria
D.
Cholera
Ans:
Malaria
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. Sporozoites are the form that is injected by the mosquito into humans.
[23] Which of the following is a Vitamin?
A.
Keratin
B.
Riboflavin
C.
Insulin
D.
Adrenalin
Ans:
Riboflavin
Explanation :
Riboflavin, also known as vitamin B2 is an easily absorbed colored micronutrient with a key role in maintaining health in humans and animals. It plays a key role in energy metabolism, and for the metabolism of fats, ketone bodies, carbohydrates, and proteins. Milk, cheese, leaf vegetables, liver, kidneys, legumes, yeast, mushrooms, and almonds are good sources of vitamin B2, but exposure to light destroys riboflavin.
[24] Which of the following organisms does not fit into the Cell Theory?
A.
Bacteria
B.
Virus
C.
Fungi
D.
Plants
Ans:
Virus
Explanation :
The cell theory states that all living things are made of cells, cells are the basic units of structure and function of living things, and that all cells come from other cells.
[25] The most abundant enzyme in the living world is -
A.
Rubisco
B.
invertase
C.
DNAse
D.
zymase
Ans:
Rubisco
Explanation :
Rubisco or ribulose 1, 5 bisphosphate carboxylase oxygenase is the plants enzyme which helps in the dark phase of photosynthesis (in the synthesis of ribulose sugar).
Explanation :
Leguminous plants are plants with root nodules. These plants need root nodules because the bacteria in these nodules covert nitrogen into nitrates and give it to the plant. The plant uses this nitrogen to make proteins and other stuff. In return the plants use the provide shelter and carbohydrates to the bacteria.
[22] A disease caused by Protozoa is -
A.
Common cold
B.
Pneumonia
C.
Malaria
D.
Cholera
Ans:
Malaria
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. Sporozoites are the form that is injected by the mosquito into humans.
[23] Which of the following is a Vitamin?
A.
Keratin
B.
Riboflavin
C.
Insulin
D.
Adrenalin
Ans:
Riboflavin
Explanation :
Riboflavin, also known as vitamin B2 is an easily absorbed colored micronutrient with a key role in maintaining health in humans and animals. It plays a key role in energy metabolism, and for the metabolism of fats, ketone bodies, carbohydrates, and proteins. Milk, cheese, leaf vegetables, liver, kidneys, legumes, yeast, mushrooms, and almonds are good sources of vitamin B2, but exposure to light destroys riboflavin.
[24] Which of the following organisms does not fit into the Cell Theory?
A.
Bacteria
B.
Virus
C.
Fungi
D.
Plants
Ans:
Virus
Explanation :
The cell theory states that all living things are made of cells, cells are the basic units of structure and function of living things, and that all cells come from other cells.
[25] The most abundant enzyme in the living world is -
A.
Rubisco
B.
invertase
C.
DNAse
D.
zymase
Ans:
Rubisco
Explanation :
Rubisco or ribulose 1, 5 bisphosphate carboxylase oxygenase is the plants enzyme which helps in the dark phase of photosynthesis (in the synthesis of ribulose sugar).
Explanation :
Riboflavin, also known as vitamin B2 is an easily absorbed colored micronutrient with a key role in maintaining health in humans and animals. It plays a key role in energy metabolism, and for the metabolism of fats, ketone bodies, carbohydrates, and proteins. Milk, cheese, leaf vegetables, liver, kidneys, legumes, yeast, mushrooms, and almonds are good sources of vitamin B2, but exposure to light destroys riboflavin.
[24] Which of the following organisms does not fit into the Cell Theory?
A.
Bacteria
B.
Virus
C.
Fungi
D.
Plants
Ans:
Virus
Explanation :
The cell theory states that all living things are made of cells, cells are the basic units of structure and function of living things, and that all cells come from other cells.
[25] The most abundant enzyme in the living world is -
A.
Rubisco
B.
invertase
C.
DNAse
D.
zymase
Ans:
Rubisco
Explanation :
Rubisco or ribulose 1, 5 bisphosphate carboxylase oxygenase is the plants enzyme which helps in the dark phase of photosynthesis (in the synthesis of ribulose sugar).
Explanation :
Rubisco or ribulose 1, 5 bisphosphate carboxylase oxygenase is the plants enzyme which helps in the dark phase of photosynthesis (in the synthesis of ribulose sugar).