[1] Transcription means the synthesis of -
A.
Lipids
B.
Protein
C.
DNA
D.
RNA
Ans:
DNA
Explanation :
Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA by the enzyme, RNA polymerase. During transcription, a DNA sequence is read by an RNA polymerase, which produces a complementary, anti-parallel RNA strand.
[2] Approximate life span of parrot is -
A.
20 years
B.
40 years
C.
70 years
D.
140 years
Ans:
20 years
Explanation :
The lifespan of a parrot depends on the species. Smaller types of parrots generally have a lifespan of 15 to 20 years, while some larger varieties can live as long as 80 years.
[3] Tendons and ligaments are -
A.
Connective tissue
B.
Muscular tissue
C.
Epithelial tissue
D.
Skeletal tissue
Ans:
Connective tissue
Explanation :
A tendon is a fibrous connective tissue which attaches muscle to bone. A ligament is a fibrous connective tissue which attaches bone to bone, and usually serves to hold structures together and keep them stable.
[4] A plant with 30 cm or more circumference from human chest height is identified as -
A.
Herb
B.
Shrub
C.
Medicinal herbs
D.
Tree
Ans:
Medicinal herbs
Explanation :
Medicinal herbs grown from 30 to 90 cm in height. They reach up to 30 cm in diameter. 957.
[5] The skin biting mosquito has legs as locomotory organ which are -
A.
Four pairs
B.
Three pairs
C.
Two pairs
D.
One pair
Ans:
Three pairs
Explanation :
Like all other insects, in a mosquito, the thorax is specialized for locomotion. Three pairs of legs and a pair of wings are attached to the thorax. The insect wing is an outgrowth of the exoskeleton.
[6] Hydrochloric acid is secreted by the cells lining the -
A.
Oral cavity
B.
Stomach
C.
Ileum
D.
Colon
Ans:
Stomach
Explanation :
The chief cells of the stomach secrete enzymes for protein breakdown (inactive pepsinogen and rennin). Hydrochloric acid activates pepsinogen into the enzyme pepsin, which then helps digestion by breaking the bonds linking amino acids, a process known as proteolysis.
[7] Emulsification is -
A.
breaking fats into small globules
B.
digestion of fats
C.
absorption of fats
D.
storage of fats
Ans:
breaking fats into small globules
Explanation :
Emulsification is the breakdown of large fat globules into smaller, uniformly distributed particles. It is accomplished mainly by bile acids in the small intestine. Emulsification is the first preparation of fat for chemical digestion by specific enzymes.
[8] Which of the following is also known as the Biochemical Laboratory of the Human Body?
A.
Small Intestine
B.
Brain
C.
Pancreas
D.
Liver
Ans:
Liver
Explanation :
Liver is considered as the biochemical laboratory of the human body. It synthesizes and secretes at least four important hormones and has a wide range of functions, including detoxification of various metabolites, protein synthesis, and the production of biochemicals necessary for digestion.
[9] With which of the following body organ is 'pace-maker' associated?
A.
Liver
B.
Brain
C.
Heart
D.
Lungs
Ans:
Heart
Explanation :
A pacemaker is a small device that's placed in the chest or abdomen to help control abnormal heart rhythms. This device uses low-energy electrical pulses to prompt the heart to beat at a normal rate. Pacemakers are used to treat arrhythmias.
[10] The smallest size of a cell that can be seen with naked eye is:
A.
1 micron
B.
10 micron
C.
100 micron
D.
1000 micron
Ans:
100 micron
Explanation :
The smallest objects that can be seen with unaided eye are about 0.1 mm long, which is equal to 100 micrometres. Micron (u) is an alternate name of micrometre.
[11] Cosmetic powder is prepared from -
A.
Asbestos
B.
Talc
C.
Gypsum
D.
Serpentine
Ans:
Talc
Explanation :
Face powder is a cosmetic powder applied to the face to set a foundation after application. There is translucent sheer powder, and there is pigmented powder.
[12] Rutherford's scattering experiment proved the presence of -
A.
atoms in all matter
B.
electrons in atoms
C.
neutrons in atoms
D.
nucleus in atoms
Ans:
nucleus in atoms
Explanation :
On the basis of his experiment, Rutherford put forward the model of an atom, which had the following features: There is a positively charged centre in an atom called the nucleus.
[13] Which of the following does not cause pollution?
A.
Burning of petrol
B.
Use of solar energy
C.
Burning of rubber
D.
All of the above
Ans:
Use of solar energy
Explanation :
Use of solar energy does not cause pollution.
[14] Excess amount of absorbed water by plants is liberated out by -
A.
Evaporation
B.
Osmosis
C.
Diffusion
D.
Transpiration
Ans:
Transpiration
Explanation :
Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. Water is necessary for plants but only a small amount of water taken up by the roots is used for growth and metabolism.
[15] The life span of RBC of man is -
A.
120 days
B.
150 days
C.
180 days
D.
190 days
Ans:
150 days
Explanation :
The average life span of RBC is about 100-120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen.
[16] The communication between the central nervous system and the other parts of the body is facilitated by -
A.
Peripheral Nervous System
B.
Central Nervous System
C.
Both are correct
D.
Both are incorrect
Ans:
Peripheral Nervous System
Explanation :
The peripheral nervous system consists of cranial nerves arising from the brain and spinal nerves arising from the spinal cord. The brain thus allows us to think and take actions based on that thinking.
[17] Which of the following disease is not affected by bacteria?
A.
Anthrax
B.
T.B.
C.
Rubella
D.
Cholera
Ans:
Rubella
Explanation :
Rubella, also known as German measles or three-day measles, is an infection caused by the rubella virus.
[18] From the bark of which plant is quinine extracted?
A.
Eucalyptus
B.
Cinchona
C.
Neem
D.
Cedar
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.
[19] Hypertension is the term used for -
A.
increase in heart rate
B.
decrease in heart rate
C.
decrease in blood pressure
D.
increase in blood pressure
Ans:
increase in blood pressure
Explanation :
Hypertension is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[20] The source of the enzyme, diastase is -
A.
salivary gland
B.
stomach
C.
liver
D.
pancreas
Ans:
salivary gland
Explanation :
Diastase was the very first enzyme discovered. This enzyme helps break down carbohydrates and turn them into sugar, which makes them easier to digest. It is found in such sources as milk, saliva and other plants.
[21] Mycoplasma is associated with a disease that affects the organs of -
A.
respiration
B.
excretion
C.
reproduction
D.
digestion
Ans:
respiration
Explanation :
Mycoplasma refers to a genus of bacteria that lack a cell wall. Several species are pathogenic in humans, including M. pneumoniae, which is an important cause of pneumonia (an inflammatory condition of the lung—affecting primarily the microscopic air sacs known as alveoli) and other respiratory disorders, and M. genitalium, which is believed to be involved in pelvic inflammatory diseases.
[22] Which one of the following is a hereditary disease?
A.
Cataract
B.
Haemophilia
C.
Pellagra
D.
Osteoporosis
Ans:
Haemophilia
Explanation :
In this instance, a specific gene from one or both parents leads to an abnormality. Examples of such a condition would be sickle cell anemia, cystic fibrosis, or hemophilia.
[23] In how many parts is the human brain divided?
A.
2
B.
3
C.
4
D.
5
Ans:
3
Explanation :
The human brain is divided into three parts: The brainstem which has the pons, the midbrain, and the medulla oblongata
[24] The total number of bones in the body of an adult human is .
A.
205
B.
206
C.
216
D.
636
Ans:
206
Explanation :
The human skeleton is the internal framework of the body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.
Explanation :
Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA by the enzyme, RNA polymerase. During transcription, a DNA sequence is read by an RNA polymerase, which produces a complementary, anti-parallel RNA strand.
[2] Approximate life span of parrot is -
A.
20 years
B.
40 years
C.
70 years
D.
140 years
Ans:
20 years
Explanation :
The lifespan of a parrot depends on the species. Smaller types of parrots generally have a lifespan of 15 to 20 years, while some larger varieties can live as long as 80 years.
[3] Tendons and ligaments are -
A.
Connective tissue
B.
Muscular tissue
C.
Epithelial tissue
D.
Skeletal tissue
Ans:
Connective tissue
Explanation :
A tendon is a fibrous connective tissue which attaches muscle to bone. A ligament is a fibrous connective tissue which attaches bone to bone, and usually serves to hold structures together and keep them stable.
[4] A plant with 30 cm or more circumference from human chest height is identified as -
A.
Herb
B.
Shrub
C.
Medicinal herbs
D.
Tree
Ans:
Medicinal herbs
Explanation :
Medicinal herbs grown from 30 to 90 cm in height. They reach up to 30 cm in diameter. 957.
[5] The skin biting mosquito has legs as locomotory organ which are -
A.
Four pairs
B.
Three pairs
C.
Two pairs
D.
One pair
Ans:
Three pairs
Explanation :
Like all other insects, in a mosquito, the thorax is specialized for locomotion. Three pairs of legs and a pair of wings are attached to the thorax. The insect wing is an outgrowth of the exoskeleton.
[6] Hydrochloric acid is secreted by the cells lining the -
A.
Oral cavity
B.
Stomach
C.
Ileum
D.
Colon
Ans:
Stomach
Explanation :
The chief cells of the stomach secrete enzymes for protein breakdown (inactive pepsinogen and rennin). Hydrochloric acid activates pepsinogen into the enzyme pepsin, which then helps digestion by breaking the bonds linking amino acids, a process known as proteolysis.
[7] Emulsification is -
A.
breaking fats into small globules
B.
digestion of fats
C.
absorption of fats
D.
storage of fats
Ans:
breaking fats into small globules
Explanation :
Emulsification is the breakdown of large fat globules into smaller, uniformly distributed particles. It is accomplished mainly by bile acids in the small intestine. Emulsification is the first preparation of fat for chemical digestion by specific enzymes.
[8] Which of the following is also known as the Biochemical Laboratory of the Human Body?
A.
Small Intestine
B.
Brain
C.
Pancreas
D.
Liver
Ans:
Liver
Explanation :
Liver is considered as the biochemical laboratory of the human body. It synthesizes and secretes at least four important hormones and has a wide range of functions, including detoxification of various metabolites, protein synthesis, and the production of biochemicals necessary for digestion.
[9] With which of the following body organ is 'pace-maker' associated?
A.
Liver
B.
Brain
C.
Heart
D.
Lungs
Ans:
Heart
Explanation :
A pacemaker is a small device that's placed in the chest or abdomen to help control abnormal heart rhythms. This device uses low-energy electrical pulses to prompt the heart to beat at a normal rate. Pacemakers are used to treat arrhythmias.
[10] The smallest size of a cell that can be seen with naked eye is:
A.
1 micron
B.
10 micron
C.
100 micron
D.
1000 micron
Ans:
100 micron
Explanation :
The smallest objects that can be seen with unaided eye are about 0.1 mm long, which is equal to 100 micrometres. Micron (u) is an alternate name of micrometre.
[11] Cosmetic powder is prepared from -
A.
Asbestos
B.
Talc
C.
Gypsum
D.
Serpentine
Ans:
Talc
Explanation :
Face powder is a cosmetic powder applied to the face to set a foundation after application. There is translucent sheer powder, and there is pigmented powder.
[12] Rutherford's scattering experiment proved the presence of -
A.
atoms in all matter
B.
electrons in atoms
C.
neutrons in atoms
D.
nucleus in atoms
Ans:
nucleus in atoms
Explanation :
On the basis of his experiment, Rutherford put forward the model of an atom, which had the following features: There is a positively charged centre in an atom called the nucleus.
[13] Which of the following does not cause pollution?
A.
Burning of petrol
B.
Use of solar energy
C.
Burning of rubber
D.
All of the above
Ans:
Use of solar energy
Explanation :
Use of solar energy does not cause pollution.
[14] Excess amount of absorbed water by plants is liberated out by -
A.
Evaporation
B.
Osmosis
C.
Diffusion
D.
Transpiration
Ans:
Transpiration
Explanation :
Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. Water is necessary for plants but only a small amount of water taken up by the roots is used for growth and metabolism.
[15] The life span of RBC of man is -
A.
120 days
B.
150 days
C.
180 days
D.
190 days
Ans:
150 days
Explanation :
The average life span of RBC is about 100-120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen.
[16] The communication between the central nervous system and the other parts of the body is facilitated by -
A.
Peripheral Nervous System
B.
Central Nervous System
C.
Both are correct
D.
Both are incorrect
Ans:
Peripheral Nervous System
Explanation :
The peripheral nervous system consists of cranial nerves arising from the brain and spinal nerves arising from the spinal cord. The brain thus allows us to think and take actions based on that thinking.
[17] Which of the following disease is not affected by bacteria?
A.
Anthrax
B.
T.B.
C.
Rubella
D.
Cholera
Ans:
Rubella
Explanation :
Rubella, also known as German measles or three-day measles, is an infection caused by the rubella virus.
[18] From the bark of which plant is quinine extracted?
A.
Eucalyptus
B.
Cinchona
C.
Neem
D.
Cedar
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.
[19] Hypertension is the term used for -
A.
increase in heart rate
B.
decrease in heart rate
C.
decrease in blood pressure
D.
increase in blood pressure
Ans:
increase in blood pressure
Explanation :
Hypertension is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[20] The source of the enzyme, diastase is -
A.
salivary gland
B.
stomach
C.
liver
D.
pancreas
Ans:
salivary gland
Explanation :
Diastase was the very first enzyme discovered. This enzyme helps break down carbohydrates and turn them into sugar, which makes them easier to digest. It is found in such sources as milk, saliva and other plants.
[21] Mycoplasma is associated with a disease that affects the organs of -
A.
respiration
B.
excretion
C.
reproduction
D.
digestion
Ans:
respiration
Explanation :
Mycoplasma refers to a genus of bacteria that lack a cell wall. Several species are pathogenic in humans, including M. pneumoniae, which is an important cause of pneumonia (an inflammatory condition of the lung—affecting primarily the microscopic air sacs known as alveoli) and other respiratory disorders, and M. genitalium, which is believed to be involved in pelvic inflammatory diseases.
[22] Which one of the following is a hereditary disease?
A.
Cataract
B.
Haemophilia
C.
Pellagra
D.
Osteoporosis
Ans:
Haemophilia
Explanation :
In this instance, a specific gene from one or both parents leads to an abnormality. Examples of such a condition would be sickle cell anemia, cystic fibrosis, or hemophilia.
[23] In how many parts is the human brain divided?
A.
2
B.
3
C.
4
D.
5
Ans:
3
Explanation :
The human brain is divided into three parts: The brainstem which has the pons, the midbrain, and the medulla oblongata
[24] The total number of bones in the body of an adult human is .
A.
205
B.
206
C.
216
D.
636
Ans:
206
Explanation :
The human skeleton is the internal framework of the body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.
Explanation :
A tendon is a fibrous connective tissue which attaches muscle to bone. A ligament is a fibrous connective tissue which attaches bone to bone, and usually serves to hold structures together and keep them stable.
[4] A plant with 30 cm or more circumference from human chest height is identified as -
A.
Herb
B.
Shrub
C.
Medicinal herbs
D.
Tree
Ans:
Medicinal herbs
Explanation :
Medicinal herbs grown from 30 to 90 cm in height. They reach up to 30 cm in diameter. 957.
[5] The skin biting mosquito has legs as locomotory organ which are -
A.
Four pairs
B.
Three pairs
C.
Two pairs
D.
One pair
Ans:
Three pairs
Explanation :
Like all other insects, in a mosquito, the thorax is specialized for locomotion. Three pairs of legs and a pair of wings are attached to the thorax. The insect wing is an outgrowth of the exoskeleton.
[6] Hydrochloric acid is secreted by the cells lining the -
A.
Oral cavity
B.
Stomach
C.
Ileum
D.
Colon
Ans:
Stomach
Explanation :
The chief cells of the stomach secrete enzymes for protein breakdown (inactive pepsinogen and rennin). Hydrochloric acid activates pepsinogen into the enzyme pepsin, which then helps digestion by breaking the bonds linking amino acids, a process known as proteolysis.
[7] Emulsification is -
A.
breaking fats into small globules
B.
digestion of fats
C.
absorption of fats
D.
storage of fats
Ans:
breaking fats into small globules
Explanation :
Emulsification is the breakdown of large fat globules into smaller, uniformly distributed particles. It is accomplished mainly by bile acids in the small intestine. Emulsification is the first preparation of fat for chemical digestion by specific enzymes.
[8] Which of the following is also known as the Biochemical Laboratory of the Human Body?
A.
Small Intestine
B.
Brain
C.
Pancreas
D.
Liver
Ans:
Liver
Explanation :
Liver is considered as the biochemical laboratory of the human body. It synthesizes and secretes at least four important hormones and has a wide range of functions, including detoxification of various metabolites, protein synthesis, and the production of biochemicals necessary for digestion.
[9] With which of the following body organ is 'pace-maker' associated?
A.
Liver
B.
Brain
C.
Heart
D.
Lungs
Ans:
Heart
Explanation :
A pacemaker is a small device that's placed in the chest or abdomen to help control abnormal heart rhythms. This device uses low-energy electrical pulses to prompt the heart to beat at a normal rate. Pacemakers are used to treat arrhythmias.
[10] The smallest size of a cell that can be seen with naked eye is:
A.
1 micron
B.
10 micron
C.
100 micron
D.
1000 micron
Ans:
100 micron
Explanation :
The smallest objects that can be seen with unaided eye are about 0.1 mm long, which is equal to 100 micrometres. Micron (u) is an alternate name of micrometre.
[11] Cosmetic powder is prepared from -
A.
Asbestos
B.
Talc
C.
Gypsum
D.
Serpentine
Ans:
Talc
Explanation :
Face powder is a cosmetic powder applied to the face to set a foundation after application. There is translucent sheer powder, and there is pigmented powder.
[12] Rutherford's scattering experiment proved the presence of -
A.
atoms in all matter
B.
electrons in atoms
C.
neutrons in atoms
D.
nucleus in atoms
Ans:
nucleus in atoms
Explanation :
On the basis of his experiment, Rutherford put forward the model of an atom, which had the following features: There is a positively charged centre in an atom called the nucleus.
[13] Which of the following does not cause pollution?
A.
Burning of petrol
B.
Use of solar energy
C.
Burning of rubber
D.
All of the above
Ans:
Use of solar energy
Explanation :
Use of solar energy does not cause pollution.
[14] Excess amount of absorbed water by plants is liberated out by -
A.
Evaporation
B.
Osmosis
C.
Diffusion
D.
Transpiration
Ans:
Transpiration
Explanation :
Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. Water is necessary for plants but only a small amount of water taken up by the roots is used for growth and metabolism.
[15] The life span of RBC of man is -
A.
120 days
B.
150 days
C.
180 days
D.
190 days
Ans:
150 days
Explanation :
The average life span of RBC is about 100-120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen.
[16] The communication between the central nervous system and the other parts of the body is facilitated by -
A.
Peripheral Nervous System
B.
Central Nervous System
C.
Both are correct
D.
Both are incorrect
Ans:
Peripheral Nervous System
Explanation :
The peripheral nervous system consists of cranial nerves arising from the brain and spinal nerves arising from the spinal cord. The brain thus allows us to think and take actions based on that thinking.
[17] Which of the following disease is not affected by bacteria?
A.
Anthrax
B.
T.B.
C.
Rubella
D.
Cholera
Ans:
Rubella
Explanation :
Rubella, also known as German measles or three-day measles, is an infection caused by the rubella virus.
[18] From the bark of which plant is quinine extracted?
A.
Eucalyptus
B.
Cinchona
C.
Neem
D.
Cedar
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.
[19] Hypertension is the term used for -
A.
increase in heart rate
B.
decrease in heart rate
C.
decrease in blood pressure
D.
increase in blood pressure
Ans:
increase in blood pressure
Explanation :
Hypertension is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[20] The source of the enzyme, diastase is -
A.
salivary gland
B.
stomach
C.
liver
D.
pancreas
Ans:
salivary gland
Explanation :
Diastase was the very first enzyme discovered. This enzyme helps break down carbohydrates and turn them into sugar, which makes them easier to digest. It is found in such sources as milk, saliva and other plants.
[21] Mycoplasma is associated with a disease that affects the organs of -
A.
respiration
B.
excretion
C.
reproduction
D.
digestion
Ans:
respiration
Explanation :
Mycoplasma refers to a genus of bacteria that lack a cell wall. Several species are pathogenic in humans, including M. pneumoniae, which is an important cause of pneumonia (an inflammatory condition of the lung—affecting primarily the microscopic air sacs known as alveoli) and other respiratory disorders, and M. genitalium, which is believed to be involved in pelvic inflammatory diseases.
[22] Which one of the following is a hereditary disease?
A.
Cataract
B.
Haemophilia
C.
Pellagra
D.
Osteoporosis
Ans:
Haemophilia
Explanation :
In this instance, a specific gene from one or both parents leads to an abnormality. Examples of such a condition would be sickle cell anemia, cystic fibrosis, or hemophilia.
[23] In how many parts is the human brain divided?
A.
2
B.
3
C.
4
D.
5
Ans:
3
Explanation :
The human brain is divided into three parts: The brainstem which has the pons, the midbrain, and the medulla oblongata
[24] The total number of bones in the body of an adult human is .
A.
205
B.
206
C.
216
D.
636
Ans:
206
Explanation :
The human skeleton is the internal framework of the body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.
Explanation :
Like all other insects, in a mosquito, the thorax is specialized for locomotion. Three pairs of legs and a pair of wings are attached to the thorax. The insect wing is an outgrowth of the exoskeleton.
[6] Hydrochloric acid is secreted by the cells lining the -
A.
Oral cavity
B.
Stomach
C.
Ileum
D.
Colon
Ans:
Stomach
Explanation :
The chief cells of the stomach secrete enzymes for protein breakdown (inactive pepsinogen and rennin). Hydrochloric acid activates pepsinogen into the enzyme pepsin, which then helps digestion by breaking the bonds linking amino acids, a process known as proteolysis.
[7] Emulsification is -
A.
breaking fats into small globules
B.
digestion of fats
C.
absorption of fats
D.
storage of fats
Ans:
breaking fats into small globules
Explanation :
Emulsification is the breakdown of large fat globules into smaller, uniformly distributed particles. It is accomplished mainly by bile acids in the small intestine. Emulsification is the first preparation of fat for chemical digestion by specific enzymes.
[8] Which of the following is also known as the Biochemical Laboratory of the Human Body?
A.
Small Intestine
B.
Brain
C.
Pancreas
D.
Liver
Ans:
Liver
Explanation :
Liver is considered as the biochemical laboratory of the human body. It synthesizes and secretes at least four important hormones and has a wide range of functions, including detoxification of various metabolites, protein synthesis, and the production of biochemicals necessary for digestion.
[9] With which of the following body organ is 'pace-maker' associated?
A.
Liver
B.
Brain
C.
Heart
D.
Lungs
Ans:
Heart
Explanation :
A pacemaker is a small device that's placed in the chest or abdomen to help control abnormal heart rhythms. This device uses low-energy electrical pulses to prompt the heart to beat at a normal rate. Pacemakers are used to treat arrhythmias.
[10] The smallest size of a cell that can be seen with naked eye is:
A.
1 micron
B.
10 micron
C.
100 micron
D.
1000 micron
Ans:
100 micron
Explanation :
The smallest objects that can be seen with unaided eye are about 0.1 mm long, which is equal to 100 micrometres. Micron (u) is an alternate name of micrometre.
[11] Cosmetic powder is prepared from -
A.
Asbestos
B.
Talc
C.
Gypsum
D.
Serpentine
Ans:
Talc
Explanation :
Face powder is a cosmetic powder applied to the face to set a foundation after application. There is translucent sheer powder, and there is pigmented powder.
[12] Rutherford's scattering experiment proved the presence of -
A.
atoms in all matter
B.
electrons in atoms
C.
neutrons in atoms
D.
nucleus in atoms
Ans:
nucleus in atoms
Explanation :
On the basis of his experiment, Rutherford put forward the model of an atom, which had the following features: There is a positively charged centre in an atom called the nucleus.
[13] Which of the following does not cause pollution?
A.
Burning of petrol
B.
Use of solar energy
C.
Burning of rubber
D.
All of the above
Ans:
Use of solar energy
Explanation :
Use of solar energy does not cause pollution.
[14] Excess amount of absorbed water by plants is liberated out by -
A.
Evaporation
B.
Osmosis
C.
Diffusion
D.
Transpiration
Ans:
Transpiration
Explanation :
Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. Water is necessary for plants but only a small amount of water taken up by the roots is used for growth and metabolism.
[15] The life span of RBC of man is -
A.
120 days
B.
150 days
C.
180 days
D.
190 days
Ans:
150 days
Explanation :
The average life span of RBC is about 100-120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen.
[16] The communication between the central nervous system and the other parts of the body is facilitated by -
A.
Peripheral Nervous System
B.
Central Nervous System
C.
Both are correct
D.
Both are incorrect
Ans:
Peripheral Nervous System
Explanation :
The peripheral nervous system consists of cranial nerves arising from the brain and spinal nerves arising from the spinal cord. The brain thus allows us to think and take actions based on that thinking.
[17] Which of the following disease is not affected by bacteria?
A.
Anthrax
B.
T.B.
C.
Rubella
D.
Cholera
Ans:
Rubella
Explanation :
Rubella, also known as German measles or three-day measles, is an infection caused by the rubella virus.
[18] From the bark of which plant is quinine extracted?
A.
Eucalyptus
B.
Cinchona
C.
Neem
D.
Cedar
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.
[19] Hypertension is the term used for -
A.
increase in heart rate
B.
decrease in heart rate
C.
decrease in blood pressure
D.
increase in blood pressure
Ans:
increase in blood pressure
Explanation :
Hypertension is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[20] The source of the enzyme, diastase is -
A.
salivary gland
B.
stomach
C.
liver
D.
pancreas
Ans:
salivary gland
Explanation :
Diastase was the very first enzyme discovered. This enzyme helps break down carbohydrates and turn them into sugar, which makes them easier to digest. It is found in such sources as milk, saliva and other plants.
[21] Mycoplasma is associated with a disease that affects the organs of -
A.
respiration
B.
excretion
C.
reproduction
D.
digestion
Ans:
respiration
Explanation :
Mycoplasma refers to a genus of bacteria that lack a cell wall. Several species are pathogenic in humans, including M. pneumoniae, which is an important cause of pneumonia (an inflammatory condition of the lung—affecting primarily the microscopic air sacs known as alveoli) and other respiratory disorders, and M. genitalium, which is believed to be involved in pelvic inflammatory diseases.
[22] Which one of the following is a hereditary disease?
A.
Cataract
B.
Haemophilia
C.
Pellagra
D.
Osteoporosis
Ans:
Haemophilia
Explanation :
In this instance, a specific gene from one or both parents leads to an abnormality. Examples of such a condition would be sickle cell anemia, cystic fibrosis, or hemophilia.
[23] In how many parts is the human brain divided?
A.
2
B.
3
C.
4
D.
5
Ans:
3
Explanation :
The human brain is divided into three parts: The brainstem which has the pons, the midbrain, and the medulla oblongata
[24] The total number of bones in the body of an adult human is .
A.
205
B.
206
C.
216
D.
636
Ans:
206
Explanation :
The human skeleton is the internal framework of the body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.
Explanation :
Emulsification is the breakdown of large fat globules into smaller, uniformly distributed particles. It is accomplished mainly by bile acids in the small intestine. Emulsification is the first preparation of fat for chemical digestion by specific enzymes.
[8] Which of the following is also known as the Biochemical Laboratory of the Human Body?
A.
Small Intestine
B.
Brain
C.
Pancreas
D.
Liver
Ans:
Liver
Explanation :
Liver is considered as the biochemical laboratory of the human body. It synthesizes and secretes at least four important hormones and has a wide range of functions, including detoxification of various metabolites, protein synthesis, and the production of biochemicals necessary for digestion.
[9] With which of the following body organ is 'pace-maker' associated?
A.
Liver
B.
Brain
C.
Heart
D.
Lungs
Ans:
Heart
Explanation :
A pacemaker is a small device that's placed in the chest or abdomen to help control abnormal heart rhythms. This device uses low-energy electrical pulses to prompt the heart to beat at a normal rate. Pacemakers are used to treat arrhythmias.
[10] The smallest size of a cell that can be seen with naked eye is:
A.
1 micron
B.
10 micron
C.
100 micron
D.
1000 micron
Ans:
100 micron
Explanation :
The smallest objects that can be seen with unaided eye are about 0.1 mm long, which is equal to 100 micrometres. Micron (u) is an alternate name of micrometre.
[11] Cosmetic powder is prepared from -
A.
Asbestos
B.
Talc
C.
Gypsum
D.
Serpentine
Ans:
Talc
Explanation :
Face powder is a cosmetic powder applied to the face to set a foundation after application. There is translucent sheer powder, and there is pigmented powder.
[12] Rutherford's scattering experiment proved the presence of -
A.
atoms in all matter
B.
electrons in atoms
C.
neutrons in atoms
D.
nucleus in atoms
Ans:
nucleus in atoms
Explanation :
On the basis of his experiment, Rutherford put forward the model of an atom, which had the following features: There is a positively charged centre in an atom called the nucleus.
[13] Which of the following does not cause pollution?
A.
Burning of petrol
B.
Use of solar energy
C.
Burning of rubber
D.
All of the above
Ans:
Use of solar energy
Explanation :
Use of solar energy does not cause pollution.
[14] Excess amount of absorbed water by plants is liberated out by -
A.
Evaporation
B.
Osmosis
C.
Diffusion
D.
Transpiration
Ans:
Transpiration
Explanation :
Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. Water is necessary for plants but only a small amount of water taken up by the roots is used for growth and metabolism.
[15] The life span of RBC of man is -
A.
120 days
B.
150 days
C.
180 days
D.
190 days
Ans:
150 days
Explanation :
The average life span of RBC is about 100-120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen.
[16] The communication between the central nervous system and the other parts of the body is facilitated by -
A.
Peripheral Nervous System
B.
Central Nervous System
C.
Both are correct
D.
Both are incorrect
Ans:
Peripheral Nervous System
Explanation :
The peripheral nervous system consists of cranial nerves arising from the brain and spinal nerves arising from the spinal cord. The brain thus allows us to think and take actions based on that thinking.
[17] Which of the following disease is not affected by bacteria?
A.
Anthrax
B.
T.B.
C.
Rubella
D.
Cholera
Ans:
Rubella
Explanation :
Rubella, also known as German measles or three-day measles, is an infection caused by the rubella virus.
[18] From the bark of which plant is quinine extracted?
A.
Eucalyptus
B.
Cinchona
C.
Neem
D.
Cedar
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.
[19] Hypertension is the term used for -
A.
increase in heart rate
B.
decrease in heart rate
C.
decrease in blood pressure
D.
increase in blood pressure
Ans:
increase in blood pressure
Explanation :
Hypertension is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[20] The source of the enzyme, diastase is -
A.
salivary gland
B.
stomach
C.
liver
D.
pancreas
Ans:
salivary gland
Explanation :
Diastase was the very first enzyme discovered. This enzyme helps break down carbohydrates and turn them into sugar, which makes them easier to digest. It is found in such sources as milk, saliva and other plants.
[21] Mycoplasma is associated with a disease that affects the organs of -
A.
respiration
B.
excretion
C.
reproduction
D.
digestion
Ans:
respiration
Explanation :
Mycoplasma refers to a genus of bacteria that lack a cell wall. Several species are pathogenic in humans, including M. pneumoniae, which is an important cause of pneumonia (an inflammatory condition of the lung—affecting primarily the microscopic air sacs known as alveoli) and other respiratory disorders, and M. genitalium, which is believed to be involved in pelvic inflammatory diseases.
[22] Which one of the following is a hereditary disease?
A.
Cataract
B.
Haemophilia
C.
Pellagra
D.
Osteoporosis
Ans:
Haemophilia
Explanation :
In this instance, a specific gene from one or both parents leads to an abnormality. Examples of such a condition would be sickle cell anemia, cystic fibrosis, or hemophilia.
[23] In how many parts is the human brain divided?
A.
2
B.
3
C.
4
D.
5
Ans:
3
Explanation :
The human brain is divided into three parts: The brainstem which has the pons, the midbrain, and the medulla oblongata
[24] The total number of bones in the body of an adult human is .
A.
205
B.
206
C.
216
D.
636
Ans:
206
Explanation :
The human skeleton is the internal framework of the body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.
Explanation :
A pacemaker is a small device that's placed in the chest or abdomen to help control abnormal heart rhythms. This device uses low-energy electrical pulses to prompt the heart to beat at a normal rate. Pacemakers are used to treat arrhythmias.
[10] The smallest size of a cell that can be seen with naked eye is:
A.
1 micron
B.
10 micron
C.
100 micron
D.
1000 micron
Ans:
100 micron
Explanation :
The smallest objects that can be seen with unaided eye are about 0.1 mm long, which is equal to 100 micrometres. Micron (u) is an alternate name of micrometre.
[11] Cosmetic powder is prepared from -
A.
Asbestos
B.
Talc
C.
Gypsum
D.
Serpentine
Ans:
Talc
Explanation :
Face powder is a cosmetic powder applied to the face to set a foundation after application. There is translucent sheer powder, and there is pigmented powder.
[12] Rutherford's scattering experiment proved the presence of -
A.
atoms in all matter
B.
electrons in atoms
C.
neutrons in atoms
D.
nucleus in atoms
Ans:
nucleus in atoms
Explanation :
On the basis of his experiment, Rutherford put forward the model of an atom, which had the following features: There is a positively charged centre in an atom called the nucleus.
[13] Which of the following does not cause pollution?
A.
Burning of petrol
B.
Use of solar energy
C.
Burning of rubber
D.
All of the above
Ans:
Use of solar energy
Explanation :
Use of solar energy does not cause pollution.
[14] Excess amount of absorbed water by plants is liberated out by -
A.
Evaporation
B.
Osmosis
C.
Diffusion
D.
Transpiration
Ans:
Transpiration
Explanation :
Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. Water is necessary for plants but only a small amount of water taken up by the roots is used for growth and metabolism.
[15] The life span of RBC of man is -
A.
120 days
B.
150 days
C.
180 days
D.
190 days
Ans:
150 days
Explanation :
The average life span of RBC is about 100-120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen.
[16] The communication between the central nervous system and the other parts of the body is facilitated by -
A.
Peripheral Nervous System
B.
Central Nervous System
C.
Both are correct
D.
Both are incorrect
Ans:
Peripheral Nervous System
Explanation :
The peripheral nervous system consists of cranial nerves arising from the brain and spinal nerves arising from the spinal cord. The brain thus allows us to think and take actions based on that thinking.
[17] Which of the following disease is not affected by bacteria?
A.
Anthrax
B.
T.B.
C.
Rubella
D.
Cholera
Ans:
Rubella
Explanation :
Rubella, also known as German measles or three-day measles, is an infection caused by the rubella virus.
[18] From the bark of which plant is quinine extracted?
A.
Eucalyptus
B.
Cinchona
C.
Neem
D.
Cedar
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.
[19] Hypertension is the term used for -
A.
increase in heart rate
B.
decrease in heart rate
C.
decrease in blood pressure
D.
increase in blood pressure
Ans:
increase in blood pressure
Explanation :
Hypertension is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[20] The source of the enzyme, diastase is -
A.
salivary gland
B.
stomach
C.
liver
D.
pancreas
Ans:
salivary gland
Explanation :
Diastase was the very first enzyme discovered. This enzyme helps break down carbohydrates and turn them into sugar, which makes them easier to digest. It is found in such sources as milk, saliva and other plants.
[21] Mycoplasma is associated with a disease that affects the organs of -
A.
respiration
B.
excretion
C.
reproduction
D.
digestion
Ans:
respiration
Explanation :
Mycoplasma refers to a genus of bacteria that lack a cell wall. Several species are pathogenic in humans, including M. pneumoniae, which is an important cause of pneumonia (an inflammatory condition of the lung—affecting primarily the microscopic air sacs known as alveoli) and other respiratory disorders, and M. genitalium, which is believed to be involved in pelvic inflammatory diseases.
[22] Which one of the following is a hereditary disease?
A.
Cataract
B.
Haemophilia
C.
Pellagra
D.
Osteoporosis
Ans:
Haemophilia
Explanation :
In this instance, a specific gene from one or both parents leads to an abnormality. Examples of such a condition would be sickle cell anemia, cystic fibrosis, or hemophilia.
[23] In how many parts is the human brain divided?
A.
2
B.
3
C.
4
D.
5
Ans:
3
Explanation :
The human brain is divided into three parts: The brainstem which has the pons, the midbrain, and the medulla oblongata
[24] The total number of bones in the body of an adult human is .
A.
205
B.
206
C.
216
D.
636
Ans:
206
Explanation :
The human skeleton is the internal framework of the body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.
Explanation :
Face powder is a cosmetic powder applied to the face to set a foundation after application. There is translucent sheer powder, and there is pigmented powder.
[12] Rutherford's scattering experiment proved the presence of -
A.
atoms in all matter
B.
electrons in atoms
C.
neutrons in atoms
D.
nucleus in atoms
Ans:
nucleus in atoms
Explanation :
On the basis of his experiment, Rutherford put forward the model of an atom, which had the following features: There is a positively charged centre in an atom called the nucleus.
[13] Which of the following does not cause pollution?
A.
Burning of petrol
B.
Use of solar energy
C.
Burning of rubber
D.
All of the above
Ans:
Use of solar energy
Explanation :
Use of solar energy does not cause pollution.
[14] Excess amount of absorbed water by plants is liberated out by -
A.
Evaporation
B.
Osmosis
C.
Diffusion
D.
Transpiration
Ans:
Transpiration
Explanation :
Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. Water is necessary for plants but only a small amount of water taken up by the roots is used for growth and metabolism.
[15] The life span of RBC of man is -
A.
120 days
B.
150 days
C.
180 days
D.
190 days
Ans:
150 days
Explanation :
The average life span of RBC is about 100-120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen.
[16] The communication between the central nervous system and the other parts of the body is facilitated by -
A.
Peripheral Nervous System
B.
Central Nervous System
C.
Both are correct
D.
Both are incorrect
Ans:
Peripheral Nervous System
Explanation :
The peripheral nervous system consists of cranial nerves arising from the brain and spinal nerves arising from the spinal cord. The brain thus allows us to think and take actions based on that thinking.
[17] Which of the following disease is not affected by bacteria?
A.
Anthrax
B.
T.B.
C.
Rubella
D.
Cholera
Ans:
Rubella
Explanation :
Rubella, also known as German measles or three-day measles, is an infection caused by the rubella virus.
[18] From the bark of which plant is quinine extracted?
A.
Eucalyptus
B.
Cinchona
C.
Neem
D.
Cedar
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.
[19] Hypertension is the term used for -
A.
increase in heart rate
B.
decrease in heart rate
C.
decrease in blood pressure
D.
increase in blood pressure
Ans:
increase in blood pressure
Explanation :
Hypertension is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[20] The source of the enzyme, diastase is -
A.
salivary gland
B.
stomach
C.
liver
D.
pancreas
Ans:
salivary gland
Explanation :
Diastase was the very first enzyme discovered. This enzyme helps break down carbohydrates and turn them into sugar, which makes them easier to digest. It is found in such sources as milk, saliva and other plants.
[21] Mycoplasma is associated with a disease that affects the organs of -
A.
respiration
B.
excretion
C.
reproduction
D.
digestion
Ans:
respiration
Explanation :
Mycoplasma refers to a genus of bacteria that lack a cell wall. Several species are pathogenic in humans, including M. pneumoniae, which is an important cause of pneumonia (an inflammatory condition of the lung—affecting primarily the microscopic air sacs known as alveoli) and other respiratory disorders, and M. genitalium, which is believed to be involved in pelvic inflammatory diseases.
[22] Which one of the following is a hereditary disease?
A.
Cataract
B.
Haemophilia
C.
Pellagra
D.
Osteoporosis
Ans:
Haemophilia
Explanation :
In this instance, a specific gene from one or both parents leads to an abnormality. Examples of such a condition would be sickle cell anemia, cystic fibrosis, or hemophilia.
[23] In how many parts is the human brain divided?
A.
2
B.
3
C.
4
D.
5
Ans:
3
Explanation :
The human brain is divided into three parts: The brainstem which has the pons, the midbrain, and the medulla oblongata
[24] The total number of bones in the body of an adult human is .
A.
205
B.
206
C.
216
D.
636
Ans:
206
Explanation :
The human skeleton is the internal framework of the body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.
Explanation :
Use of solar energy does not cause pollution.
[14] Excess amount of absorbed water by plants is liberated out by -
A.
Evaporation
B.
Osmosis
C.
Diffusion
D.
Transpiration
Ans:
Transpiration
Explanation :
Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. Water is necessary for plants but only a small amount of water taken up by the roots is used for growth and metabolism.
[15] The life span of RBC of man is -
A.
120 days
B.
150 days
C.
180 days
D.
190 days
Ans:
150 days
Explanation :
The average life span of RBC is about 100-120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen.
[16] The communication between the central nervous system and the other parts of the body is facilitated by -
A.
Peripheral Nervous System
B.
Central Nervous System
C.
Both are correct
D.
Both are incorrect
Ans:
Peripheral Nervous System
Explanation :
The peripheral nervous system consists of cranial nerves arising from the brain and spinal nerves arising from the spinal cord. The brain thus allows us to think and take actions based on that thinking.
[17] Which of the following disease is not affected by bacteria?
A.
Anthrax
B.
T.B.
C.
Rubella
D.
Cholera
Ans:
Rubella
Explanation :
Rubella, also known as German measles or three-day measles, is an infection caused by the rubella virus.
[18] From the bark of which plant is quinine extracted?
A.
Eucalyptus
B.
Cinchona
C.
Neem
D.
Cedar
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.
[19] Hypertension is the term used for -
A.
increase in heart rate
B.
decrease in heart rate
C.
decrease in blood pressure
D.
increase in blood pressure
Ans:
increase in blood pressure
Explanation :
Hypertension is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[20] The source of the enzyme, diastase is -
A.
salivary gland
B.
stomach
C.
liver
D.
pancreas
Ans:
salivary gland
Explanation :
Diastase was the very first enzyme discovered. This enzyme helps break down carbohydrates and turn them into sugar, which makes them easier to digest. It is found in such sources as milk, saliva and other plants.
[21] Mycoplasma is associated with a disease that affects the organs of -
A.
respiration
B.
excretion
C.
reproduction
D.
digestion
Ans:
respiration
Explanation :
Mycoplasma refers to a genus of bacteria that lack a cell wall. Several species are pathogenic in humans, including M. pneumoniae, which is an important cause of pneumonia (an inflammatory condition of the lung—affecting primarily the microscopic air sacs known as alveoli) and other respiratory disorders, and M. genitalium, which is believed to be involved in pelvic inflammatory diseases.
[22] Which one of the following is a hereditary disease?
A.
Cataract
B.
Haemophilia
C.
Pellagra
D.
Osteoporosis
Ans:
Haemophilia
Explanation :
In this instance, a specific gene from one or both parents leads to an abnormality. Examples of such a condition would be sickle cell anemia, cystic fibrosis, or hemophilia.
[23] In how many parts is the human brain divided?
A.
2
B.
3
C.
4
D.
5
Ans:
3
Explanation :
The human brain is divided into three parts: The brainstem which has the pons, the midbrain, and the medulla oblongata
[24] The total number of bones in the body of an adult human is .
A.
205
B.
206
C.
216
D.
636
Ans:
206
Explanation :
The human skeleton is the internal framework of the body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.
Explanation :
The average life span of RBC is about 100-120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen.
[16] The communication between the central nervous system and the other parts of the body is facilitated by -
A.
Peripheral Nervous System
B.
Central Nervous System
C.
Both are correct
D.
Both are incorrect
Ans:
Peripheral Nervous System
Explanation :
The peripheral nervous system consists of cranial nerves arising from the brain and spinal nerves arising from the spinal cord. The brain thus allows us to think and take actions based on that thinking.
[17] Which of the following disease is not affected by bacteria?
A.
Anthrax
B.
T.B.
C.
Rubella
D.
Cholera
Ans:
Rubella
Explanation :
Rubella, also known as German measles or three-day measles, is an infection caused by the rubella virus.
[18] From the bark of which plant is quinine extracted?
A.
Eucalyptus
B.
Cinchona
C.
Neem
D.
Cedar
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.
[19] Hypertension is the term used for -
A.
increase in heart rate
B.
decrease in heart rate
C.
decrease in blood pressure
D.
increase in blood pressure
Ans:
increase in blood pressure
Explanation :
Hypertension is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[20] The source of the enzyme, diastase is -
A.
salivary gland
B.
stomach
C.
liver
D.
pancreas
Ans:
salivary gland
Explanation :
Diastase was the very first enzyme discovered. This enzyme helps break down carbohydrates and turn them into sugar, which makes them easier to digest. It is found in such sources as milk, saliva and other plants.
[21] Mycoplasma is associated with a disease that affects the organs of -
A.
respiration
B.
excretion
C.
reproduction
D.
digestion
Ans:
respiration
Explanation :
Mycoplasma refers to a genus of bacteria that lack a cell wall. Several species are pathogenic in humans, including M. pneumoniae, which is an important cause of pneumonia (an inflammatory condition of the lung—affecting primarily the microscopic air sacs known as alveoli) and other respiratory disorders, and M. genitalium, which is believed to be involved in pelvic inflammatory diseases.
[22] Which one of the following is a hereditary disease?
A.
Cataract
B.
Haemophilia
C.
Pellagra
D.
Osteoporosis
Ans:
Haemophilia
Explanation :
In this instance, a specific gene from one or both parents leads to an abnormality. Examples of such a condition would be sickle cell anemia, cystic fibrosis, or hemophilia.
[23] In how many parts is the human brain divided?
A.
2
B.
3
C.
4
D.
5
Ans:
3
Explanation :
The human brain is divided into three parts: The brainstem which has the pons, the midbrain, and the medulla oblongata
[24] The total number of bones in the body of an adult human is .
A.
205
B.
206
C.
216
D.
636
Ans:
206
Explanation :
The human skeleton is the internal framework of the body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.
Explanation :
Rubella, also known as German measles or three-day measles, is an infection caused by the rubella virus.
[18] From the bark of which plant is quinine extracted?
A.
Eucalyptus
B.
Cinchona
C.
Neem
D.
Cedar
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.
[19] Hypertension is the term used for -
A.
increase in heart rate
B.
decrease in heart rate
C.
decrease in blood pressure
D.
increase in blood pressure
Ans:
increase in blood pressure
Explanation :
Hypertension is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[20] The source of the enzyme, diastase is -
A.
salivary gland
B.
stomach
C.
liver
D.
pancreas
Ans:
salivary gland
Explanation :
Diastase was the very first enzyme discovered. This enzyme helps break down carbohydrates and turn them into sugar, which makes them easier to digest. It is found in such sources as milk, saliva and other plants.
[21] Mycoplasma is associated with a disease that affects the organs of -
A.
respiration
B.
excretion
C.
reproduction
D.
digestion
Ans:
respiration
Explanation :
Mycoplasma refers to a genus of bacteria that lack a cell wall. Several species are pathogenic in humans, including M. pneumoniae, which is an important cause of pneumonia (an inflammatory condition of the lung—affecting primarily the microscopic air sacs known as alveoli) and other respiratory disorders, and M. genitalium, which is believed to be involved in pelvic inflammatory diseases.
[22] Which one of the following is a hereditary disease?
A.
Cataract
B.
Haemophilia
C.
Pellagra
D.
Osteoporosis
Ans:
Haemophilia
Explanation :
In this instance, a specific gene from one or both parents leads to an abnormality. Examples of such a condition would be sickle cell anemia, cystic fibrosis, or hemophilia.
[23] In how many parts is the human brain divided?
A.
2
B.
3
C.
4
D.
5
Ans:
3
Explanation :
The human brain is divided into three parts: The brainstem which has the pons, the midbrain, and the medulla oblongata
[24] The total number of bones in the body of an adult human is .
A.
205
B.
206
C.
216
D.
636
Ans:
206
Explanation :
The human skeleton is the internal framework of the body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.
Explanation :
Hypertension is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
[20] The source of the enzyme, diastase is -
A.
salivary gland
B.
stomach
C.
liver
D.
pancreas
Ans:
salivary gland
Explanation :
Diastase was the very first enzyme discovered. This enzyme helps break down carbohydrates and turn them into sugar, which makes them easier to digest. It is found in such sources as milk, saliva and other plants.
[21] Mycoplasma is associated with a disease that affects the organs of -
A.
respiration
B.
excretion
C.
reproduction
D.
digestion
Ans:
respiration
Explanation :
Mycoplasma refers to a genus of bacteria that lack a cell wall. Several species are pathogenic in humans, including M. pneumoniae, which is an important cause of pneumonia (an inflammatory condition of the lung—affecting primarily the microscopic air sacs known as alveoli) and other respiratory disorders, and M. genitalium, which is believed to be involved in pelvic inflammatory diseases.
[22] Which one of the following is a hereditary disease?
A.
Cataract
B.
Haemophilia
C.
Pellagra
D.
Osteoporosis
Ans:
Haemophilia
Explanation :
In this instance, a specific gene from one or both parents leads to an abnormality. Examples of such a condition would be sickle cell anemia, cystic fibrosis, or hemophilia.
[23] In how many parts is the human brain divided?
A.
2
B.
3
C.
4
D.
5
Ans:
3
Explanation :
The human brain is divided into three parts: The brainstem which has the pons, the midbrain, and the medulla oblongata
[24] The total number of bones in the body of an adult human is .
A.
205
B.
206
C.
216
D.
636
Ans:
206
Explanation :
The human skeleton is the internal framework of the body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.
Explanation :
Mycoplasma refers to a genus of bacteria that lack a cell wall. Several species are pathogenic in humans, including M. pneumoniae, which is an important cause of pneumonia (an inflammatory condition of the lung—affecting primarily the microscopic air sacs known as alveoli) and other respiratory disorders, and M. genitalium, which is believed to be involved in pelvic inflammatory diseases.
[22] Which one of the following is a hereditary disease?
A.
Cataract
B.
Haemophilia
C.
Pellagra
D.
Osteoporosis
Ans:
Haemophilia
Explanation :
In this instance, a specific gene from one or both parents leads to an abnormality. Examples of such a condition would be sickle cell anemia, cystic fibrosis, or hemophilia.
[23] In how many parts is the human brain divided?
A.
2
B.
3
C.
4
D.
5
Ans:
3
Explanation :
The human brain is divided into three parts: The brainstem which has the pons, the midbrain, and the medulla oblongata
[24] The total number of bones in the body of an adult human is .
A.
205
B.
206
C.
216
D.
636
Ans:
206
Explanation :
The human skeleton is the internal framework of the body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.
Explanation :
The human brain is divided into three parts: The brainstem which has the pons, the midbrain, and the medulla oblongata
[24] The total number of bones in the body of an adult human is .
A.
205
B.
206
C.
216
D.
636
Ans:
206
Explanation :
The human skeleton is the internal framework of the body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.
Explanation :
The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.