[1] The process of preventing the birds from flying is called -
A.
brailing
B.
debeaking
C.
dubbing
D.
pecking
Ans:
brailing
Explanation :
Brailing is the practice of preventing a bird from flying by tying the wing so that it is impossible for the bird to open it fully. The brail is a clear plastic strap, fastened by rivets, which will be used to restrain his wing. Brailing the birds helps prevent injuries during shipment.
[2] Largest gland in human body is _.
A.
Liver
B.
Pancreas
C.
Pituitary
D.
Thyroid
Ans:
Liver
Explanation :
Liver: is the largest gland in body. It stores its waste bile in Gall Bladder. Bile is released into duodenum and helps in digestion of fats.
[3] Saliva helps in the digestion of -
A.
Fats
B.
Starch
C.
Proteins
D.
Vitamins
Ans:
Starch
Explanation :
Produced in salivary glands, saliva is 98% water, but it contains many important substances, including electrolytes, mucus, antibacterial compounds and various enzymes. The digestive functions of saliva include moistening food, and helping to create a food bolus, so it can be swallowed easily. Saliva contains the enzyme amylase that breaks some starches down into maltose and dextrin. Thus, digestion of food occurs within the mouth, even before food reaches the stomach.
[4] Which one of the following is not a vaccine?
A.
13CG
B.
Anti-rabies
C.
Polio vaccine
D.
Progesterone
Ans:
Progesterone
Explanation :
Progesterone is one of the hormones in our bodies that stimulates and regulates various functions. Progesterone plays a role in maintaining pregnancy. The hormone is produced in the ovaries, the placenta (when a woman gets pregnant) and the adrenal glands. It helps prepare your body for conception and pregnancy and regulates the monthly menstrual cycle. It also plays a role in sexual desire.
[5] The disease that is caused by virus is -
A.
Typhoid
B.
Cholera
C.
Common Cold
D.
Tetanus
Ans:
Common Cold
Explanation :
Common cold is a viral infectious disease of the upper respiratory tract which affects primarily the nose. Symptoms include coughing, sore throat, runny nose, and fever which usually resolve in seven to ten days, with some symptoms lasting up to three weeks. Well over 200 viruses are implicated in the cause of the common cold; the rhinoviruses are the most common. It is the most frequent infectious disease in humans with the average adult contracting two to three colds a year and the average child contracting between-six and twelve.
[6] Small Pox is caused by -
A.
Rubeola Virus
B.
Variola Virus
C.
Varicella
D.
Myxovirus
Ans:
Variola Virus
Explanation :
Smallpox was an infectious disease unique to humans, caused by either of two virus variants, Variola major and Variola minor. The disease is also known by the Latin names Variola or Variola vera, which is a derivative of the Latin varies, meaning "spotted", or \Tanis, meaning "pimple". After vaccination campaigns throughout the 19th and 20th centuries, the WHO certified the eradication of smallpox in 1979. Smallpox is one of two infectious diseases to have been eradicated, the other being rinderpest, which was declared, eradicated in 2011.
[7] Respiration process requires -
A.
heat
B.
water
C.
oxygen
D.
sunlight
Ans:
oxygen
Explanation :
In physiology, respiration (often confused with breathing) is defined as the transport of oxygen from the outside air to the cells within tissues, and the transport of carbon dioxide in the opposite direction. This is in contrast to the biochemical definition of respiration, which refers to cellular respiration: the metabolic process by which an organism obtains energy by reacting oxygen with glucose to give water, carbon dioxide and ATP (energy). Respiratory behavior is correlated to the cardiovascular behavior to control the gaseous exchange between cells and blood.
[8] AIDS is a/an -
A.
bacterial disease
B.
viral disease
C.
fungal disease
D.
algal disease
Ans:
viral disease
Explanation :
AIDS (Acquired immune deficiency syndrome or acquired immunodeficiency syndrome) is a disease caused by a virus called HIV (Human Immunodeficiency Virus). The illness alters the immune system, making people much more vulnerable to infections and diseases. This susceptibility worsens as the disease progresses. HIV is found in the body fluids of an infected person (semen and vaginal fluids, blood and breast milk).
[9] Amoebic dysentery is caused by -
A.
Entameeba histolytica
B.
Salmonella typhi
C.
E. coil
D.
Streptococcus pyogenes
Ans:
Entameeba histolytica
Explanation :
Amoebic dysentery (or amebic dysentery) is a type of dysentery caused primarily by the amoeba Entamoeba histolytica. Amoebic dysentery is transmitted through contaminated food and water. Amoebae spread by forming infective cysts which can be found in stools, and spread if whoever touches them does not sanitize their hands. There are also free amoebae, or trophozoites, that do not form cysts, however trophozoites do not survive long outside of the human gastrointestinal tract, and are a purely diagnostic observation.
[10] If the blood group of one parent is AB and that of the other O, the possible blood group of their child would be -
A.
A or B
B.
A or B or O
C.
A or AB or O
D.
A or B or AB or O
Ans:
A or B
Explanation :
Everyone has two copies of the gene for blood type (and for most other genes as well). Since O is a recessive trait that means that someone with type O blood must have two copies of the O gene. Types A and B are dominant, and since they're co-dominant, someone with type AB blood must have the A gene and the B gene. In reproduction, the offspring get one copy of each gene from each parent. Since the type O parent has two copies of the O gene, it's assured that the offspring will get one of them.
[11] How many bones are there in the human body?
A.
187
B.
287
C.
206
D.
306
Ans:
206
Explanation :
There are 206 bones in an normal adult skeleton. A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations. These include: 22 Cranial and Facial Bones; 6 Ear Bones; 1 Throat Bone; 4 Shoulder Bones; 25 Chest Bones; 26 Vertebral Bones; 6 Arm and Forearm bones; 54 Hand Bones; 2 Pelvic Bones; 8 Leg Bones; and 52 Foot Bones.
[12] Which one of the following animals is called farmer's friend -
A.
Ant
B.
Earthworm
C.
Bee
D.
Butterfly
Ans:
Earthworm
Explanation :
Earthworms travel underground by the means of waves of muscular contractions which alternately shorten and lengthen the body. The shortened part is anchored to the surrounding soil by tiny claw-like bristles (setae) set along its segmented length. In all the body segments except the first, last and clitellum, there is a ring of S-shaped setae embedded in the epidermal pit of each segment (perichaetine). The whole burrowing process is aided by the secretion of lubricating mucus. Worms can make gurgling noises underground when disturbed as a result of the worm moving through its lubricated tunnels. They also work as biological “pistons” forcing air through the tunnels as they move. Thus earthworm activity aerates and mixes the soil, and is constructive to mineralization and nutrient uptake by vegetation. Certain species of earthworm come to the surface and graze on the higher concentrations of organic matter present there, mixing it with the mineral soil. Because a high level of organic matter mixing is associated with soil fertility, an abundance of earthworms is beneficial to the organic gardener.
[13] The term ‘gene’ was coined by -
A.
T. H. Morgan
B.
W. L. Johanssen
C.
G. Mendel
D.
De Vries
Ans:
W. L. Johanssen
Explanation :
Wilhelm Johannsen was a Danish botanist, plant physiologist and geneticist. His most well-known research concerned so-called pure lines of the selffertile common bean. He was able to show that even in populations homozygous for all traits, i.e. without genetic variation, seed size followed a normal distribution. This was attributable to resource provision to the mother plant and to the position of seeds in pods and of pods on the plant.
[14] The study of visceral organs is -
A.
Angiology
B.
Arthrology
C.
Anthrology
D.
Splanchnology
Ans:
Splanchnology
Explanation :
Splanchology is the scientific study of the viscera and its organs. It studies the characteristics and structure of the visceral system of an animal. It is the study of viscera, which are the organs situated in the thoracic, abdominal and pelvic cavities of the body, and are associated with pleura and peritoneum. There are four major systems identified in the viscera according to their functions, and they are the digestive system, the respiratory system, the urinary system, and the reproductive system. These four major systems are to process bodily intakes for metabolism such as nutrients and oxygen from surrounding and to remove the wastes from the body. One last function of the viscera is to ensure the survival of the species as a whole by conducting the process of reproduction.
[15] The branch of biology dealing with the study of cells is known as -
A.
Cytology
B.
Histology
C.
Psychology
D.
Physiology
Ans:
Cytology
Explanation :
Cytology means "the study of cells". Cytology is that branch of life science, which deals with the study of cells in terms of structure, function and chemistry. Based on usage it can refer to: Cytopathology: the study of cellular disease and the use of cellular changes for the diagnosis of disease; and Cell biology: the study of (normal) cellular anatomy, function and chemistry.
[16] The blood cholesterol level in 100ml of blood in a normal person varies between —
A.
150 and 200 mg
B.
120 and 200 mg
C.
100 and 180 mg
D.
80 and 160 mg
Ans:
150 and 200 mg
Explanation :
Cholesterol is defined as a waxy alcohol, fat-like substance that occurs naturally in all areas of the human body. Cholesterol is measured in milligrams per 100 millimetres of blood. The normal level of cholesterol varies between 150-200 mg per 100 ml. Any increase in cholesterol level leads to hypercholesterolemia or high cholesterol. Normal cholesterol is 180 mg/dl or 180 mg/ 144ml. < 200 mg/dl is considered to be normal blood cholesterol; 200-239 mg/dL borderline-high; and > 240 mg/dl high cholesterol.
[17] Thalassemia is a hereditary disease. It affects -
A.
Blood
B.
Spleen
C.
Lungs
D.
Heart
Ans:
Blood
Explanation :
Thalassemia is forms of inherited autosomal recessive blood disorders that originated in the Mediterranean region. In thalassemia, the disease is caused by the weakening and destruction of red blood cells. Whilst possessing the ability to cause significant complications, including anaemia, iron overload, bone deformities and cardiovascular illness, thalassemia may confer a degree of protection against malaria, which is or was prevalent in the regions where the trait is common.
[18] Which of the following represents a foodchain involving a producer, a vegetarian and a non vegetarian?
A.
Grass — Insect — Elephant
B.
Plant — Rabbit — Tiger
C.
Fish - Insect - Whale
D.
Tiger — Rabbit - Owl
Ans:
Plant — Rabbit — Tiger
Explanation :
A food chain is a linear sequence of links in a food web starting from a trophic species that eats no other species in the web and ends at a trophic species that is eaten by no other species in the web. Plant, rabbit and tiger form a food chain where plant represents producer, rabbits represent a vegetarian, while tiger represents a non-vegetarian.
[19] Which of the following is a large blood vessel that carries blood away from the heart?
A.
Vein
B.
Artery
C.
Capillary
D.
Nerve
Ans:
Artery
Explanation :
The pulmonary artery carries blood from the right side of the heart to the lungs to pick up a fresh supply of oxygen.
[20] Nitrogen fixing bacteria found in the root nodules of leguminous plant is:-
A.
Saprophytic
B.
Parasitic
C.
Symbiotic
D.
Autotrophic
Ans:
Symbiotic
Explanation :
Many legumes have root nodules that provide a home for symbiotic nitrogen-fixing bacteria called rhizobia. This relationship is particularly common in nitrogen-limited conditions.
[21] The total number of vertebrae in a human being is -
A.
26
B.
30
C.
29
D.
33
Ans:
33
Explanation :
The vertebral column, also known as backbone or spine, is a bony structure found in Vertebrates. It is formed from the vertebrae.
[22] On the average, what percent age of human body has the element of oxygen?
A.
65
B.
25
C.
10
D.
5
Ans:
65
Explanation :
This element is obviously the most important element in the human body. Oxygen atoms are present in water, which is the compound most common in the body, and other compounds that make up tissues. It is also found in the blood and lungs due to respiration. In the human body, the oxygen is absorbed by the blood stream in the lungs, being then transported to the cells where an elaborated change process takes place. Oxygen plays a vital role in the breathing processes and in the metabolism of the living organisms.
[23] The is responsible for precision of voluntary actions and for maintaining the posture and balance of the body.
A.
Mid-brain
B.
Cerebellum
C.
Cerebrum
D.
Spinal cord
Ans:
Cerebellum
Explanation :
Cerebellum is responsible for precision of voluntary actions and maintaining the posture and balance of the body. Activities like walking in a straight line, riding a bicycle picking up a pencil are possible due to cerebellum.
[24] The age of trees is determined by its -
A.
girth
B.
height
C.
growth rings
D.
general appearance
Ans:
growth rings
Explanation :
Growth rings can determine the age of the trees. Growth rings, also referred to as tree rings or annual rings, can be seen in a horizontal cross section cut through the trunk of a tree. Growth rings are the result of new growth in the vascular cambium.
[25] Yeast, used in making bread is a -
A.
fungus
B.
Plant
C.
bacteria
D.
seed
Ans:
fungus
Explanation :
Yeast are single-celled microorganisms that are classified, along with molds and mushrooms, as members of the Kingdom Fungi.
Explanation :
Brailing is the practice of preventing a bird from flying by tying the wing so that it is impossible for the bird to open it fully. The brail is a clear plastic strap, fastened by rivets, which will be used to restrain his wing. Brailing the birds helps prevent injuries during shipment.
[2] Largest gland in human body is _.
A.
Liver
B.
Pancreas
C.
Pituitary
D.
Thyroid
Ans:
Liver
Explanation :
Liver: is the largest gland in body. It stores its waste bile in Gall Bladder. Bile is released into duodenum and helps in digestion of fats.
[3] Saliva helps in the digestion of -
A.
Fats
B.
Starch
C.
Proteins
D.
Vitamins
Ans:
Starch
Explanation :
Produced in salivary glands, saliva is 98% water, but it contains many important substances, including electrolytes, mucus, antibacterial compounds and various enzymes. The digestive functions of saliva include moistening food, and helping to create a food bolus, so it can be swallowed easily. Saliva contains the enzyme amylase that breaks some starches down into maltose and dextrin. Thus, digestion of food occurs within the mouth, even before food reaches the stomach.
[4] Which one of the following is not a vaccine?
A.
13CG
B.
Anti-rabies
C.
Polio vaccine
D.
Progesterone
Ans:
Progesterone
Explanation :
Progesterone is one of the hormones in our bodies that stimulates and regulates various functions. Progesterone plays a role in maintaining pregnancy. The hormone is produced in the ovaries, the placenta (when a woman gets pregnant) and the adrenal glands. It helps prepare your body for conception and pregnancy and regulates the monthly menstrual cycle. It also plays a role in sexual desire.
[5] The disease that is caused by virus is -
A.
Typhoid
B.
Cholera
C.
Common Cold
D.
Tetanus
Ans:
Common Cold
Explanation :
Common cold is a viral infectious disease of the upper respiratory tract which affects primarily the nose. Symptoms include coughing, sore throat, runny nose, and fever which usually resolve in seven to ten days, with some symptoms lasting up to three weeks. Well over 200 viruses are implicated in the cause of the common cold; the rhinoviruses are the most common. It is the most frequent infectious disease in humans with the average adult contracting two to three colds a year and the average child contracting between-six and twelve.
[6] Small Pox is caused by -
A.
Rubeola Virus
B.
Variola Virus
C.
Varicella
D.
Myxovirus
Ans:
Variola Virus
Explanation :
Smallpox was an infectious disease unique to humans, caused by either of two virus variants, Variola major and Variola minor. The disease is also known by the Latin names Variola or Variola vera, which is a derivative of the Latin varies, meaning "spotted", or \Tanis, meaning "pimple". After vaccination campaigns throughout the 19th and 20th centuries, the WHO certified the eradication of smallpox in 1979. Smallpox is one of two infectious diseases to have been eradicated, the other being rinderpest, which was declared, eradicated in 2011.
[7] Respiration process requires -
A.
heat
B.
water
C.
oxygen
D.
sunlight
Ans:
oxygen
Explanation :
In physiology, respiration (often confused with breathing) is defined as the transport of oxygen from the outside air to the cells within tissues, and the transport of carbon dioxide in the opposite direction. This is in contrast to the biochemical definition of respiration, which refers to cellular respiration: the metabolic process by which an organism obtains energy by reacting oxygen with glucose to give water, carbon dioxide and ATP (energy). Respiratory behavior is correlated to the cardiovascular behavior to control the gaseous exchange between cells and blood.
[8] AIDS is a/an -
A.
bacterial disease
B.
viral disease
C.
fungal disease
D.
algal disease
Ans:
viral disease
Explanation :
AIDS (Acquired immune deficiency syndrome or acquired immunodeficiency syndrome) is a disease caused by a virus called HIV (Human Immunodeficiency Virus). The illness alters the immune system, making people much more vulnerable to infections and diseases. This susceptibility worsens as the disease progresses. HIV is found in the body fluids of an infected person (semen and vaginal fluids, blood and breast milk).
[9] Amoebic dysentery is caused by -
A.
Entameeba histolytica
B.
Salmonella typhi
C.
E. coil
D.
Streptococcus pyogenes
Ans:
Entameeba histolytica
Explanation :
Amoebic dysentery (or amebic dysentery) is a type of dysentery caused primarily by the amoeba Entamoeba histolytica. Amoebic dysentery is transmitted through contaminated food and water. Amoebae spread by forming infective cysts which can be found in stools, and spread if whoever touches them does not sanitize their hands. There are also free amoebae, or trophozoites, that do not form cysts, however trophozoites do not survive long outside of the human gastrointestinal tract, and are a purely diagnostic observation.
[10] If the blood group of one parent is AB and that of the other O, the possible blood group of their child would be -
A.
A or B
B.
A or B or O
C.
A or AB or O
D.
A or B or AB or O
Ans:
A or B
Explanation :
Everyone has two copies of the gene for blood type (and for most other genes as well). Since O is a recessive trait that means that someone with type O blood must have two copies of the O gene. Types A and B are dominant, and since they're co-dominant, someone with type AB blood must have the A gene and the B gene. In reproduction, the offspring get one copy of each gene from each parent. Since the type O parent has two copies of the O gene, it's assured that the offspring will get one of them.
[11] How many bones are there in the human body?
A.
187
B.
287
C.
206
D.
306
Ans:
206
Explanation :
There are 206 bones in an normal adult skeleton. A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations. These include: 22 Cranial and Facial Bones; 6 Ear Bones; 1 Throat Bone; 4 Shoulder Bones; 25 Chest Bones; 26 Vertebral Bones; 6 Arm and Forearm bones; 54 Hand Bones; 2 Pelvic Bones; 8 Leg Bones; and 52 Foot Bones.
[12] Which one of the following animals is called farmer's friend -
A.
Ant
B.
Earthworm
C.
Bee
D.
Butterfly
Ans:
Earthworm
Explanation :
Earthworms travel underground by the means of waves of muscular contractions which alternately shorten and lengthen the body. The shortened part is anchored to the surrounding soil by tiny claw-like bristles (setae) set along its segmented length. In all the body segments except the first, last and clitellum, there is a ring of S-shaped setae embedded in the epidermal pit of each segment (perichaetine). The whole burrowing process is aided by the secretion of lubricating mucus. Worms can make gurgling noises underground when disturbed as a result of the worm moving through its lubricated tunnels. They also work as biological “pistons” forcing air through the tunnels as they move. Thus earthworm activity aerates and mixes the soil, and is constructive to mineralization and nutrient uptake by vegetation. Certain species of earthworm come to the surface and graze on the higher concentrations of organic matter present there, mixing it with the mineral soil. Because a high level of organic matter mixing is associated with soil fertility, an abundance of earthworms is beneficial to the organic gardener.
[13] The term ‘gene’ was coined by -
A.
T. H. Morgan
B.
W. L. Johanssen
C.
G. Mendel
D.
De Vries
Ans:
W. L. Johanssen
Explanation :
Wilhelm Johannsen was a Danish botanist, plant physiologist and geneticist. His most well-known research concerned so-called pure lines of the selffertile common bean. He was able to show that even in populations homozygous for all traits, i.e. without genetic variation, seed size followed a normal distribution. This was attributable to resource provision to the mother plant and to the position of seeds in pods and of pods on the plant.
[14] The study of visceral organs is -
A.
Angiology
B.
Arthrology
C.
Anthrology
D.
Splanchnology
Ans:
Splanchnology
Explanation :
Splanchology is the scientific study of the viscera and its organs. It studies the characteristics and structure of the visceral system of an animal. It is the study of viscera, which are the organs situated in the thoracic, abdominal and pelvic cavities of the body, and are associated with pleura and peritoneum. There are four major systems identified in the viscera according to their functions, and they are the digestive system, the respiratory system, the urinary system, and the reproductive system. These four major systems are to process bodily intakes for metabolism such as nutrients and oxygen from surrounding and to remove the wastes from the body. One last function of the viscera is to ensure the survival of the species as a whole by conducting the process of reproduction.
[15] The branch of biology dealing with the study of cells is known as -
A.
Cytology
B.
Histology
C.
Psychology
D.
Physiology
Ans:
Cytology
Explanation :
Cytology means "the study of cells". Cytology is that branch of life science, which deals with the study of cells in terms of structure, function and chemistry. Based on usage it can refer to: Cytopathology: the study of cellular disease and the use of cellular changes for the diagnosis of disease; and Cell biology: the study of (normal) cellular anatomy, function and chemistry.
[16] The blood cholesterol level in 100ml of blood in a normal person varies between —
A.
150 and 200 mg
B.
120 and 200 mg
C.
100 and 180 mg
D.
80 and 160 mg
Ans:
150 and 200 mg
Explanation :
Cholesterol is defined as a waxy alcohol, fat-like substance that occurs naturally in all areas of the human body. Cholesterol is measured in milligrams per 100 millimetres of blood. The normal level of cholesterol varies between 150-200 mg per 100 ml. Any increase in cholesterol level leads to hypercholesterolemia or high cholesterol. Normal cholesterol is 180 mg/dl or 180 mg/ 144ml. < 200 mg/dl is considered to be normal blood cholesterol; 200-239 mg/dL borderline-high; and > 240 mg/dl high cholesterol.
[17] Thalassemia is a hereditary disease. It affects -
A.
Blood
B.
Spleen
C.
Lungs
D.
Heart
Ans:
Blood
Explanation :
Thalassemia is forms of inherited autosomal recessive blood disorders that originated in the Mediterranean region. In thalassemia, the disease is caused by the weakening and destruction of red blood cells. Whilst possessing the ability to cause significant complications, including anaemia, iron overload, bone deformities and cardiovascular illness, thalassemia may confer a degree of protection against malaria, which is or was prevalent in the regions where the trait is common.
[18] Which of the following represents a foodchain involving a producer, a vegetarian and a non vegetarian?
A.
Grass — Insect — Elephant
B.
Plant — Rabbit — Tiger
C.
Fish - Insect - Whale
D.
Tiger — Rabbit - Owl
Ans:
Plant — Rabbit — Tiger
Explanation :
A food chain is a linear sequence of links in a food web starting from a trophic species that eats no other species in the web and ends at a trophic species that is eaten by no other species in the web. Plant, rabbit and tiger form a food chain where plant represents producer, rabbits represent a vegetarian, while tiger represents a non-vegetarian.
[19] Which of the following is a large blood vessel that carries blood away from the heart?
A.
Vein
B.
Artery
C.
Capillary
D.
Nerve
Ans:
Artery
Explanation :
The pulmonary artery carries blood from the right side of the heart to the lungs to pick up a fresh supply of oxygen.
[20] Nitrogen fixing bacteria found in the root nodules of leguminous plant is:-
A.
Saprophytic
B.
Parasitic
C.
Symbiotic
D.
Autotrophic
Ans:
Symbiotic
Explanation :
Many legumes have root nodules that provide a home for symbiotic nitrogen-fixing bacteria called rhizobia. This relationship is particularly common in nitrogen-limited conditions.
[21] The total number of vertebrae in a human being is -
A.
26
B.
30
C.
29
D.
33
Ans:
33
Explanation :
The vertebral column, also known as backbone or spine, is a bony structure found in Vertebrates. It is formed from the vertebrae.
[22] On the average, what percent age of human body has the element of oxygen?
A.
65
B.
25
C.
10
D.
5
Ans:
65
Explanation :
This element is obviously the most important element in the human body. Oxygen atoms are present in water, which is the compound most common in the body, and other compounds that make up tissues. It is also found in the blood and lungs due to respiration. In the human body, the oxygen is absorbed by the blood stream in the lungs, being then transported to the cells where an elaborated change process takes place. Oxygen plays a vital role in the breathing processes and in the metabolism of the living organisms.
[23] The is responsible for precision of voluntary actions and for maintaining the posture and balance of the body.
A.
Mid-brain
B.
Cerebellum
C.
Cerebrum
D.
Spinal cord
Ans:
Cerebellum
Explanation :
Cerebellum is responsible for precision of voluntary actions and maintaining the posture and balance of the body. Activities like walking in a straight line, riding a bicycle picking up a pencil are possible due to cerebellum.
[24] The age of trees is determined by its -
A.
girth
B.
height
C.
growth rings
D.
general appearance
Ans:
growth rings
Explanation :
Growth rings can determine the age of the trees. Growth rings, also referred to as tree rings or annual rings, can be seen in a horizontal cross section cut through the trunk of a tree. Growth rings are the result of new growth in the vascular cambium.
[25] Yeast, used in making bread is a -
A.
fungus
B.
Plant
C.
bacteria
D.
seed
Ans:
fungus
Explanation :
Yeast are single-celled microorganisms that are classified, along with molds and mushrooms, as members of the Kingdom Fungi.
Explanation :
Produced in salivary glands, saliva is 98% water, but it contains many important substances, including electrolytes, mucus, antibacterial compounds and various enzymes. The digestive functions of saliva include moistening food, and helping to create a food bolus, so it can be swallowed easily. Saliva contains the enzyme amylase that breaks some starches down into maltose and dextrin. Thus, digestion of food occurs within the mouth, even before food reaches the stomach.
[4] Which one of the following is not a vaccine?
A.
13CG
B.
Anti-rabies
C.
Polio vaccine
D.
Progesterone
Ans:
Progesterone
Explanation :
Progesterone is one of the hormones in our bodies that stimulates and regulates various functions. Progesterone plays a role in maintaining pregnancy. The hormone is produced in the ovaries, the placenta (when a woman gets pregnant) and the adrenal glands. It helps prepare your body for conception and pregnancy and regulates the monthly menstrual cycle. It also plays a role in sexual desire.
[5] The disease that is caused by virus is -
A.
Typhoid
B.
Cholera
C.
Common Cold
D.
Tetanus
Ans:
Common Cold
Explanation :
Common cold is a viral infectious disease of the upper respiratory tract which affects primarily the nose. Symptoms include coughing, sore throat, runny nose, and fever which usually resolve in seven to ten days, with some symptoms lasting up to three weeks. Well over 200 viruses are implicated in the cause of the common cold; the rhinoviruses are the most common. It is the most frequent infectious disease in humans with the average adult contracting two to three colds a year and the average child contracting between-six and twelve.
[6] Small Pox is caused by -
A.
Rubeola Virus
B.
Variola Virus
C.
Varicella
D.
Myxovirus
Ans:
Variola Virus
Explanation :
Smallpox was an infectious disease unique to humans, caused by either of two virus variants, Variola major and Variola minor. The disease is also known by the Latin names Variola or Variola vera, which is a derivative of the Latin varies, meaning "spotted", or \Tanis, meaning "pimple". After vaccination campaigns throughout the 19th and 20th centuries, the WHO certified the eradication of smallpox in 1979. Smallpox is one of two infectious diseases to have been eradicated, the other being rinderpest, which was declared, eradicated in 2011.
[7] Respiration process requires -
A.
heat
B.
water
C.
oxygen
D.
sunlight
Ans:
oxygen
Explanation :
In physiology, respiration (often confused with breathing) is defined as the transport of oxygen from the outside air to the cells within tissues, and the transport of carbon dioxide in the opposite direction. This is in contrast to the biochemical definition of respiration, which refers to cellular respiration: the metabolic process by which an organism obtains energy by reacting oxygen with glucose to give water, carbon dioxide and ATP (energy). Respiratory behavior is correlated to the cardiovascular behavior to control the gaseous exchange between cells and blood.
[8] AIDS is a/an -
A.
bacterial disease
B.
viral disease
C.
fungal disease
D.
algal disease
Ans:
viral disease
Explanation :
AIDS (Acquired immune deficiency syndrome or acquired immunodeficiency syndrome) is a disease caused by a virus called HIV (Human Immunodeficiency Virus). The illness alters the immune system, making people much more vulnerable to infections and diseases. This susceptibility worsens as the disease progresses. HIV is found in the body fluids of an infected person (semen and vaginal fluids, blood and breast milk).
[9] Amoebic dysentery is caused by -
A.
Entameeba histolytica
B.
Salmonella typhi
C.
E. coil
D.
Streptococcus pyogenes
Ans:
Entameeba histolytica
Explanation :
Amoebic dysentery (or amebic dysentery) is a type of dysentery caused primarily by the amoeba Entamoeba histolytica. Amoebic dysentery is transmitted through contaminated food and water. Amoebae spread by forming infective cysts which can be found in stools, and spread if whoever touches them does not sanitize their hands. There are also free amoebae, or trophozoites, that do not form cysts, however trophozoites do not survive long outside of the human gastrointestinal tract, and are a purely diagnostic observation.
[10] If the blood group of one parent is AB and that of the other O, the possible blood group of their child would be -
A.
A or B
B.
A or B or O
C.
A or AB or O
D.
A or B or AB or O
Ans:
A or B
Explanation :
Everyone has two copies of the gene for blood type (and for most other genes as well). Since O is a recessive trait that means that someone with type O blood must have two copies of the O gene. Types A and B are dominant, and since they're co-dominant, someone with type AB blood must have the A gene and the B gene. In reproduction, the offspring get one copy of each gene from each parent. Since the type O parent has two copies of the O gene, it's assured that the offspring will get one of them.
[11] How many bones are there in the human body?
A.
187
B.
287
C.
206
D.
306
Ans:
206
Explanation :
There are 206 bones in an normal adult skeleton. A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations. These include: 22 Cranial and Facial Bones; 6 Ear Bones; 1 Throat Bone; 4 Shoulder Bones; 25 Chest Bones; 26 Vertebral Bones; 6 Arm and Forearm bones; 54 Hand Bones; 2 Pelvic Bones; 8 Leg Bones; and 52 Foot Bones.
[12] Which one of the following animals is called farmer's friend -
A.
Ant
B.
Earthworm
C.
Bee
D.
Butterfly
Ans:
Earthworm
Explanation :
Earthworms travel underground by the means of waves of muscular contractions which alternately shorten and lengthen the body. The shortened part is anchored to the surrounding soil by tiny claw-like bristles (setae) set along its segmented length. In all the body segments except the first, last and clitellum, there is a ring of S-shaped setae embedded in the epidermal pit of each segment (perichaetine). The whole burrowing process is aided by the secretion of lubricating mucus. Worms can make gurgling noises underground when disturbed as a result of the worm moving through its lubricated tunnels. They also work as biological “pistons” forcing air through the tunnels as they move. Thus earthworm activity aerates and mixes the soil, and is constructive to mineralization and nutrient uptake by vegetation. Certain species of earthworm come to the surface and graze on the higher concentrations of organic matter present there, mixing it with the mineral soil. Because a high level of organic matter mixing is associated with soil fertility, an abundance of earthworms is beneficial to the organic gardener.
[13] The term ‘gene’ was coined by -
A.
T. H. Morgan
B.
W. L. Johanssen
C.
G. Mendel
D.
De Vries
Ans:
W. L. Johanssen
Explanation :
Wilhelm Johannsen was a Danish botanist, plant physiologist and geneticist. His most well-known research concerned so-called pure lines of the selffertile common bean. He was able to show that even in populations homozygous for all traits, i.e. without genetic variation, seed size followed a normal distribution. This was attributable to resource provision to the mother plant and to the position of seeds in pods and of pods on the plant.
[14] The study of visceral organs is -
A.
Angiology
B.
Arthrology
C.
Anthrology
D.
Splanchnology
Ans:
Splanchnology
Explanation :
Splanchology is the scientific study of the viscera and its organs. It studies the characteristics and structure of the visceral system of an animal. It is the study of viscera, which are the organs situated in the thoracic, abdominal and pelvic cavities of the body, and are associated with pleura and peritoneum. There are four major systems identified in the viscera according to their functions, and they are the digestive system, the respiratory system, the urinary system, and the reproductive system. These four major systems are to process bodily intakes for metabolism such as nutrients and oxygen from surrounding and to remove the wastes from the body. One last function of the viscera is to ensure the survival of the species as a whole by conducting the process of reproduction.
[15] The branch of biology dealing with the study of cells is known as -
A.
Cytology
B.
Histology
C.
Psychology
D.
Physiology
Ans:
Cytology
Explanation :
Cytology means "the study of cells". Cytology is that branch of life science, which deals with the study of cells in terms of structure, function and chemistry. Based on usage it can refer to: Cytopathology: the study of cellular disease and the use of cellular changes for the diagnosis of disease; and Cell biology: the study of (normal) cellular anatomy, function and chemistry.
[16] The blood cholesterol level in 100ml of blood in a normal person varies between —
A.
150 and 200 mg
B.
120 and 200 mg
C.
100 and 180 mg
D.
80 and 160 mg
Ans:
150 and 200 mg
Explanation :
Cholesterol is defined as a waxy alcohol, fat-like substance that occurs naturally in all areas of the human body. Cholesterol is measured in milligrams per 100 millimetres of blood. The normal level of cholesterol varies between 150-200 mg per 100 ml. Any increase in cholesterol level leads to hypercholesterolemia or high cholesterol. Normal cholesterol is 180 mg/dl or 180 mg/ 144ml. < 200 mg/dl is considered to be normal blood cholesterol; 200-239 mg/dL borderline-high; and > 240 mg/dl high cholesterol.
[17] Thalassemia is a hereditary disease. It affects -
A.
Blood
B.
Spleen
C.
Lungs
D.
Heart
Ans:
Blood
Explanation :
Thalassemia is forms of inherited autosomal recessive blood disorders that originated in the Mediterranean region. In thalassemia, the disease is caused by the weakening and destruction of red blood cells. Whilst possessing the ability to cause significant complications, including anaemia, iron overload, bone deformities and cardiovascular illness, thalassemia may confer a degree of protection against malaria, which is or was prevalent in the regions where the trait is common.
[18] Which of the following represents a foodchain involving a producer, a vegetarian and a non vegetarian?
A.
Grass — Insect — Elephant
B.
Plant — Rabbit — Tiger
C.
Fish - Insect - Whale
D.
Tiger — Rabbit - Owl
Ans:
Plant — Rabbit — Tiger
Explanation :
A food chain is a linear sequence of links in a food web starting from a trophic species that eats no other species in the web and ends at a trophic species that is eaten by no other species in the web. Plant, rabbit and tiger form a food chain where plant represents producer, rabbits represent a vegetarian, while tiger represents a non-vegetarian.
[19] Which of the following is a large blood vessel that carries blood away from the heart?
A.
Vein
B.
Artery
C.
Capillary
D.
Nerve
Ans:
Artery
Explanation :
The pulmonary artery carries blood from the right side of the heart to the lungs to pick up a fresh supply of oxygen.
[20] Nitrogen fixing bacteria found in the root nodules of leguminous plant is:-
A.
Saprophytic
B.
Parasitic
C.
Symbiotic
D.
Autotrophic
Ans:
Symbiotic
Explanation :
Many legumes have root nodules that provide a home for symbiotic nitrogen-fixing bacteria called rhizobia. This relationship is particularly common in nitrogen-limited conditions.
[21] The total number of vertebrae in a human being is -
A.
26
B.
30
C.
29
D.
33
Ans:
33
Explanation :
The vertebral column, also known as backbone or spine, is a bony structure found in Vertebrates. It is formed from the vertebrae.
[22] On the average, what percent age of human body has the element of oxygen?
A.
65
B.
25
C.
10
D.
5
Ans:
65
Explanation :
This element is obviously the most important element in the human body. Oxygen atoms are present in water, which is the compound most common in the body, and other compounds that make up tissues. It is also found in the blood and lungs due to respiration. In the human body, the oxygen is absorbed by the blood stream in the lungs, being then transported to the cells where an elaborated change process takes place. Oxygen plays a vital role in the breathing processes and in the metabolism of the living organisms.
[23] The is responsible for precision of voluntary actions and for maintaining the posture and balance of the body.
A.
Mid-brain
B.
Cerebellum
C.
Cerebrum
D.
Spinal cord
Ans:
Cerebellum
Explanation :
Cerebellum is responsible for precision of voluntary actions and maintaining the posture and balance of the body. Activities like walking in a straight line, riding a bicycle picking up a pencil are possible due to cerebellum.
[24] The age of trees is determined by its -
A.
girth
B.
height
C.
growth rings
D.
general appearance
Ans:
growth rings
Explanation :
Growth rings can determine the age of the trees. Growth rings, also referred to as tree rings or annual rings, can be seen in a horizontal cross section cut through the trunk of a tree. Growth rings are the result of new growth in the vascular cambium.
[25] Yeast, used in making bread is a -
A.
fungus
B.
Plant
C.
bacteria
D.
seed
Ans:
fungus
Explanation :
Yeast are single-celled microorganisms that are classified, along with molds and mushrooms, as members of the Kingdom Fungi.
Explanation :
Common cold is a viral infectious disease of the upper respiratory tract which affects primarily the nose. Symptoms include coughing, sore throat, runny nose, and fever which usually resolve in seven to ten days, with some symptoms lasting up to three weeks. Well over 200 viruses are implicated in the cause of the common cold; the rhinoviruses are the most common. It is the most frequent infectious disease in humans with the average adult contracting two to three colds a year and the average child contracting between-six and twelve.
[6] Small Pox is caused by -
A.
Rubeola Virus
B.
Variola Virus
C.
Varicella
D.
Myxovirus
Ans:
Variola Virus
Explanation :
Smallpox was an infectious disease unique to humans, caused by either of two virus variants, Variola major and Variola minor. The disease is also known by the Latin names Variola or Variola vera, which is a derivative of the Latin varies, meaning "spotted", or \Tanis, meaning "pimple". After vaccination campaigns throughout the 19th and 20th centuries, the WHO certified the eradication of smallpox in 1979. Smallpox is one of two infectious diseases to have been eradicated, the other being rinderpest, which was declared, eradicated in 2011.
[7] Respiration process requires -
A.
heat
B.
water
C.
oxygen
D.
sunlight
Ans:
oxygen
Explanation :
In physiology, respiration (often confused with breathing) is defined as the transport of oxygen from the outside air to the cells within tissues, and the transport of carbon dioxide in the opposite direction. This is in contrast to the biochemical definition of respiration, which refers to cellular respiration: the metabolic process by which an organism obtains energy by reacting oxygen with glucose to give water, carbon dioxide and ATP (energy). Respiratory behavior is correlated to the cardiovascular behavior to control the gaseous exchange between cells and blood.
[8] AIDS is a/an -
A.
bacterial disease
B.
viral disease
C.
fungal disease
D.
algal disease
Ans:
viral disease
Explanation :
AIDS (Acquired immune deficiency syndrome or acquired immunodeficiency syndrome) is a disease caused by a virus called HIV (Human Immunodeficiency Virus). The illness alters the immune system, making people much more vulnerable to infections and diseases. This susceptibility worsens as the disease progresses. HIV is found in the body fluids of an infected person (semen and vaginal fluids, blood and breast milk).
[9] Amoebic dysentery is caused by -
A.
Entameeba histolytica
B.
Salmonella typhi
C.
E. coil
D.
Streptococcus pyogenes
Ans:
Entameeba histolytica
Explanation :
Amoebic dysentery (or amebic dysentery) is a type of dysentery caused primarily by the amoeba Entamoeba histolytica. Amoebic dysentery is transmitted through contaminated food and water. Amoebae spread by forming infective cysts which can be found in stools, and spread if whoever touches them does not sanitize their hands. There are also free amoebae, or trophozoites, that do not form cysts, however trophozoites do not survive long outside of the human gastrointestinal tract, and are a purely diagnostic observation.
[10] If the blood group of one parent is AB and that of the other O, the possible blood group of their child would be -
A.
A or B
B.
A or B or O
C.
A or AB or O
D.
A or B or AB or O
Ans:
A or B
Explanation :
Everyone has two copies of the gene for blood type (and for most other genes as well). Since O is a recessive trait that means that someone with type O blood must have two copies of the O gene. Types A and B are dominant, and since they're co-dominant, someone with type AB blood must have the A gene and the B gene. In reproduction, the offspring get one copy of each gene from each parent. Since the type O parent has two copies of the O gene, it's assured that the offspring will get one of them.
[11] How many bones are there in the human body?
A.
187
B.
287
C.
206
D.
306
Ans:
206
Explanation :
There are 206 bones in an normal adult skeleton. A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations. These include: 22 Cranial and Facial Bones; 6 Ear Bones; 1 Throat Bone; 4 Shoulder Bones; 25 Chest Bones; 26 Vertebral Bones; 6 Arm and Forearm bones; 54 Hand Bones; 2 Pelvic Bones; 8 Leg Bones; and 52 Foot Bones.
[12] Which one of the following animals is called farmer's friend -
A.
Ant
B.
Earthworm
C.
Bee
D.
Butterfly
Ans:
Earthworm
Explanation :
Earthworms travel underground by the means of waves of muscular contractions which alternately shorten and lengthen the body. The shortened part is anchored to the surrounding soil by tiny claw-like bristles (setae) set along its segmented length. In all the body segments except the first, last and clitellum, there is a ring of S-shaped setae embedded in the epidermal pit of each segment (perichaetine). The whole burrowing process is aided by the secretion of lubricating mucus. Worms can make gurgling noises underground when disturbed as a result of the worm moving through its lubricated tunnels. They also work as biological “pistons” forcing air through the tunnels as they move. Thus earthworm activity aerates and mixes the soil, and is constructive to mineralization and nutrient uptake by vegetation. Certain species of earthworm come to the surface and graze on the higher concentrations of organic matter present there, mixing it with the mineral soil. Because a high level of organic matter mixing is associated with soil fertility, an abundance of earthworms is beneficial to the organic gardener.
[13] The term ‘gene’ was coined by -
A.
T. H. Morgan
B.
W. L. Johanssen
C.
G. Mendel
D.
De Vries
Ans:
W. L. Johanssen
Explanation :
Wilhelm Johannsen was a Danish botanist, plant physiologist and geneticist. His most well-known research concerned so-called pure lines of the selffertile common bean. He was able to show that even in populations homozygous for all traits, i.e. without genetic variation, seed size followed a normal distribution. This was attributable to resource provision to the mother plant and to the position of seeds in pods and of pods on the plant.
[14] The study of visceral organs is -
A.
Angiology
B.
Arthrology
C.
Anthrology
D.
Splanchnology
Ans:
Splanchnology
Explanation :
Splanchology is the scientific study of the viscera and its organs. It studies the characteristics and structure of the visceral system of an animal. It is the study of viscera, which are the organs situated in the thoracic, abdominal and pelvic cavities of the body, and are associated with pleura and peritoneum. There are four major systems identified in the viscera according to their functions, and they are the digestive system, the respiratory system, the urinary system, and the reproductive system. These four major systems are to process bodily intakes for metabolism such as nutrients and oxygen from surrounding and to remove the wastes from the body. One last function of the viscera is to ensure the survival of the species as a whole by conducting the process of reproduction.
[15] The branch of biology dealing with the study of cells is known as -
A.
Cytology
B.
Histology
C.
Psychology
D.
Physiology
Ans:
Cytology
Explanation :
Cytology means "the study of cells". Cytology is that branch of life science, which deals with the study of cells in terms of structure, function and chemistry. Based on usage it can refer to: Cytopathology: the study of cellular disease and the use of cellular changes for the diagnosis of disease; and Cell biology: the study of (normal) cellular anatomy, function and chemistry.
[16] The blood cholesterol level in 100ml of blood in a normal person varies between —
A.
150 and 200 mg
B.
120 and 200 mg
C.
100 and 180 mg
D.
80 and 160 mg
Ans:
150 and 200 mg
Explanation :
Cholesterol is defined as a waxy alcohol, fat-like substance that occurs naturally in all areas of the human body. Cholesterol is measured in milligrams per 100 millimetres of blood. The normal level of cholesterol varies between 150-200 mg per 100 ml. Any increase in cholesterol level leads to hypercholesterolemia or high cholesterol. Normal cholesterol is 180 mg/dl or 180 mg/ 144ml. < 200 mg/dl is considered to be normal blood cholesterol; 200-239 mg/dL borderline-high; and > 240 mg/dl high cholesterol.
[17] Thalassemia is a hereditary disease. It affects -
A.
Blood
B.
Spleen
C.
Lungs
D.
Heart
Ans:
Blood
Explanation :
Thalassemia is forms of inherited autosomal recessive blood disorders that originated in the Mediterranean region. In thalassemia, the disease is caused by the weakening and destruction of red blood cells. Whilst possessing the ability to cause significant complications, including anaemia, iron overload, bone deformities and cardiovascular illness, thalassemia may confer a degree of protection against malaria, which is or was prevalent in the regions where the trait is common.
[18] Which of the following represents a foodchain involving a producer, a vegetarian and a non vegetarian?
A.
Grass — Insect — Elephant
B.
Plant — Rabbit — Tiger
C.
Fish - Insect - Whale
D.
Tiger — Rabbit - Owl
Ans:
Plant — Rabbit — Tiger
Explanation :
A food chain is a linear sequence of links in a food web starting from a trophic species that eats no other species in the web and ends at a trophic species that is eaten by no other species in the web. Plant, rabbit and tiger form a food chain where plant represents producer, rabbits represent a vegetarian, while tiger represents a non-vegetarian.
[19] Which of the following is a large blood vessel that carries blood away from the heart?
A.
Vein
B.
Artery
C.
Capillary
D.
Nerve
Ans:
Artery
Explanation :
The pulmonary artery carries blood from the right side of the heart to the lungs to pick up a fresh supply of oxygen.
[20] Nitrogen fixing bacteria found in the root nodules of leguminous plant is:-
A.
Saprophytic
B.
Parasitic
C.
Symbiotic
D.
Autotrophic
Ans:
Symbiotic
Explanation :
Many legumes have root nodules that provide a home for symbiotic nitrogen-fixing bacteria called rhizobia. This relationship is particularly common in nitrogen-limited conditions.
[21] The total number of vertebrae in a human being is -
A.
26
B.
30
C.
29
D.
33
Ans:
33
Explanation :
The vertebral column, also known as backbone or spine, is a bony structure found in Vertebrates. It is formed from the vertebrae.
[22] On the average, what percent age of human body has the element of oxygen?
A.
65
B.
25
C.
10
D.
5
Ans:
65
Explanation :
This element is obviously the most important element in the human body. Oxygen atoms are present in water, which is the compound most common in the body, and other compounds that make up tissues. It is also found in the blood and lungs due to respiration. In the human body, the oxygen is absorbed by the blood stream in the lungs, being then transported to the cells where an elaborated change process takes place. Oxygen plays a vital role in the breathing processes and in the metabolism of the living organisms.
[23] The is responsible for precision of voluntary actions and for maintaining the posture and balance of the body.
A.
Mid-brain
B.
Cerebellum
C.
Cerebrum
D.
Spinal cord
Ans:
Cerebellum
Explanation :
Cerebellum is responsible for precision of voluntary actions and maintaining the posture and balance of the body. Activities like walking in a straight line, riding a bicycle picking up a pencil are possible due to cerebellum.
[24] The age of trees is determined by its -
A.
girth
B.
height
C.
growth rings
D.
general appearance
Ans:
growth rings
Explanation :
Growth rings can determine the age of the trees. Growth rings, also referred to as tree rings or annual rings, can be seen in a horizontal cross section cut through the trunk of a tree. Growth rings are the result of new growth in the vascular cambium.
[25] Yeast, used in making bread is a -
A.
fungus
B.
Plant
C.
bacteria
D.
seed
Ans:
fungus
Explanation :
Yeast are single-celled microorganisms that are classified, along with molds and mushrooms, as members of the Kingdom Fungi.
Explanation :
In physiology, respiration (often confused with breathing) is defined as the transport of oxygen from the outside air to the cells within tissues, and the transport of carbon dioxide in the opposite direction. This is in contrast to the biochemical definition of respiration, which refers to cellular respiration: the metabolic process by which an organism obtains energy by reacting oxygen with glucose to give water, carbon dioxide and ATP (energy). Respiratory behavior is correlated to the cardiovascular behavior to control the gaseous exchange between cells and blood.
[8] AIDS is a/an -
A.
bacterial disease
B.
viral disease
C.
fungal disease
D.
algal disease
Ans:
viral disease
Explanation :
AIDS (Acquired immune deficiency syndrome or acquired immunodeficiency syndrome) is a disease caused by a virus called HIV (Human Immunodeficiency Virus). The illness alters the immune system, making people much more vulnerable to infections and diseases. This susceptibility worsens as the disease progresses. HIV is found in the body fluids of an infected person (semen and vaginal fluids, blood and breast milk).
[9] Amoebic dysentery is caused by -
A.
Entameeba histolytica
B.
Salmonella typhi
C.
E. coil
D.
Streptococcus pyogenes
Ans:
Entameeba histolytica
Explanation :
Amoebic dysentery (or amebic dysentery) is a type of dysentery caused primarily by the amoeba Entamoeba histolytica. Amoebic dysentery is transmitted through contaminated food and water. Amoebae spread by forming infective cysts which can be found in stools, and spread if whoever touches them does not sanitize their hands. There are also free amoebae, or trophozoites, that do not form cysts, however trophozoites do not survive long outside of the human gastrointestinal tract, and are a purely diagnostic observation.
[10] If the blood group of one parent is AB and that of the other O, the possible blood group of their child would be -
A.
A or B
B.
A or B or O
C.
A or AB or O
D.
A or B or AB or O
Ans:
A or B
Explanation :
Everyone has two copies of the gene for blood type (and for most other genes as well). Since O is a recessive trait that means that someone with type O blood must have two copies of the O gene. Types A and B are dominant, and since they're co-dominant, someone with type AB blood must have the A gene and the B gene. In reproduction, the offspring get one copy of each gene from each parent. Since the type O parent has two copies of the O gene, it's assured that the offspring will get one of them.
[11] How many bones are there in the human body?
A.
187
B.
287
C.
206
D.
306
Ans:
206
Explanation :
There are 206 bones in an normal adult skeleton. A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations. These include: 22 Cranial and Facial Bones; 6 Ear Bones; 1 Throat Bone; 4 Shoulder Bones; 25 Chest Bones; 26 Vertebral Bones; 6 Arm and Forearm bones; 54 Hand Bones; 2 Pelvic Bones; 8 Leg Bones; and 52 Foot Bones.
[12] Which one of the following animals is called farmer's friend -
A.
Ant
B.
Earthworm
C.
Bee
D.
Butterfly
Ans:
Earthworm
Explanation :
Earthworms travel underground by the means of waves of muscular contractions which alternately shorten and lengthen the body. The shortened part is anchored to the surrounding soil by tiny claw-like bristles (setae) set along its segmented length. In all the body segments except the first, last and clitellum, there is a ring of S-shaped setae embedded in the epidermal pit of each segment (perichaetine). The whole burrowing process is aided by the secretion of lubricating mucus. Worms can make gurgling noises underground when disturbed as a result of the worm moving through its lubricated tunnels. They also work as biological “pistons” forcing air through the tunnels as they move. Thus earthworm activity aerates and mixes the soil, and is constructive to mineralization and nutrient uptake by vegetation. Certain species of earthworm come to the surface and graze on the higher concentrations of organic matter present there, mixing it with the mineral soil. Because a high level of organic matter mixing is associated with soil fertility, an abundance of earthworms is beneficial to the organic gardener.
[13] The term ‘gene’ was coined by -
A.
T. H. Morgan
B.
W. L. Johanssen
C.
G. Mendel
D.
De Vries
Ans:
W. L. Johanssen
Explanation :
Wilhelm Johannsen was a Danish botanist, plant physiologist and geneticist. His most well-known research concerned so-called pure lines of the selffertile common bean. He was able to show that even in populations homozygous for all traits, i.e. without genetic variation, seed size followed a normal distribution. This was attributable to resource provision to the mother plant and to the position of seeds in pods and of pods on the plant.
[14] The study of visceral organs is -
A.
Angiology
B.
Arthrology
C.
Anthrology
D.
Splanchnology
Ans:
Splanchnology
Explanation :
Splanchology is the scientific study of the viscera and its organs. It studies the characteristics and structure of the visceral system of an animal. It is the study of viscera, which are the organs situated in the thoracic, abdominal and pelvic cavities of the body, and are associated with pleura and peritoneum. There are four major systems identified in the viscera according to their functions, and they are the digestive system, the respiratory system, the urinary system, and the reproductive system. These four major systems are to process bodily intakes for metabolism such as nutrients and oxygen from surrounding and to remove the wastes from the body. One last function of the viscera is to ensure the survival of the species as a whole by conducting the process of reproduction.
[15] The branch of biology dealing with the study of cells is known as -
A.
Cytology
B.
Histology
C.
Psychology
D.
Physiology
Ans:
Cytology
Explanation :
Cytology means "the study of cells". Cytology is that branch of life science, which deals with the study of cells in terms of structure, function and chemistry. Based on usage it can refer to: Cytopathology: the study of cellular disease and the use of cellular changes for the diagnosis of disease; and Cell biology: the study of (normal) cellular anatomy, function and chemistry.
[16] The blood cholesterol level in 100ml of blood in a normal person varies between —
A.
150 and 200 mg
B.
120 and 200 mg
C.
100 and 180 mg
D.
80 and 160 mg
Ans:
150 and 200 mg
Explanation :
Cholesterol is defined as a waxy alcohol, fat-like substance that occurs naturally in all areas of the human body. Cholesterol is measured in milligrams per 100 millimetres of blood. The normal level of cholesterol varies between 150-200 mg per 100 ml. Any increase in cholesterol level leads to hypercholesterolemia or high cholesterol. Normal cholesterol is 180 mg/dl or 180 mg/ 144ml. < 200 mg/dl is considered to be normal blood cholesterol; 200-239 mg/dL borderline-high; and > 240 mg/dl high cholesterol.
[17] Thalassemia is a hereditary disease. It affects -
A.
Blood
B.
Spleen
C.
Lungs
D.
Heart
Ans:
Blood
Explanation :
Thalassemia is forms of inherited autosomal recessive blood disorders that originated in the Mediterranean region. In thalassemia, the disease is caused by the weakening and destruction of red blood cells. Whilst possessing the ability to cause significant complications, including anaemia, iron overload, bone deformities and cardiovascular illness, thalassemia may confer a degree of protection against malaria, which is or was prevalent in the regions where the trait is common.
[18] Which of the following represents a foodchain involving a producer, a vegetarian and a non vegetarian?
A.
Grass — Insect — Elephant
B.
Plant — Rabbit — Tiger
C.
Fish - Insect - Whale
D.
Tiger — Rabbit - Owl
Ans:
Plant — Rabbit — Tiger
Explanation :
A food chain is a linear sequence of links in a food web starting from a trophic species that eats no other species in the web and ends at a trophic species that is eaten by no other species in the web. Plant, rabbit and tiger form a food chain where plant represents producer, rabbits represent a vegetarian, while tiger represents a non-vegetarian.
[19] Which of the following is a large blood vessel that carries blood away from the heart?
A.
Vein
B.
Artery
C.
Capillary
D.
Nerve
Ans:
Artery
Explanation :
The pulmonary artery carries blood from the right side of the heart to the lungs to pick up a fresh supply of oxygen.
[20] Nitrogen fixing bacteria found in the root nodules of leguminous plant is:-
A.
Saprophytic
B.
Parasitic
C.
Symbiotic
D.
Autotrophic
Ans:
Symbiotic
Explanation :
Many legumes have root nodules that provide a home for symbiotic nitrogen-fixing bacteria called rhizobia. This relationship is particularly common in nitrogen-limited conditions.
[21] The total number of vertebrae in a human being is -
A.
26
B.
30
C.
29
D.
33
Ans:
33
Explanation :
The vertebral column, also known as backbone or spine, is a bony structure found in Vertebrates. It is formed from the vertebrae.
[22] On the average, what percent age of human body has the element of oxygen?
A.
65
B.
25
C.
10
D.
5
Ans:
65
Explanation :
This element is obviously the most important element in the human body. Oxygen atoms are present in water, which is the compound most common in the body, and other compounds that make up tissues. It is also found in the blood and lungs due to respiration. In the human body, the oxygen is absorbed by the blood stream in the lungs, being then transported to the cells where an elaborated change process takes place. Oxygen plays a vital role in the breathing processes and in the metabolism of the living organisms.
[23] The is responsible for precision of voluntary actions and for maintaining the posture and balance of the body.
A.
Mid-brain
B.
Cerebellum
C.
Cerebrum
D.
Spinal cord
Ans:
Cerebellum
Explanation :
Cerebellum is responsible for precision of voluntary actions and maintaining the posture and balance of the body. Activities like walking in a straight line, riding a bicycle picking up a pencil are possible due to cerebellum.
[24] The age of trees is determined by its -
A.
girth
B.
height
C.
growth rings
D.
general appearance
Ans:
growth rings
Explanation :
Growth rings can determine the age of the trees. Growth rings, also referred to as tree rings or annual rings, can be seen in a horizontal cross section cut through the trunk of a tree. Growth rings are the result of new growth in the vascular cambium.
[25] Yeast, used in making bread is a -
A.
fungus
B.
Plant
C.
bacteria
D.
seed
Ans:
fungus
Explanation :
Yeast are single-celled microorganisms that are classified, along with molds and mushrooms, as members of the Kingdom Fungi.
Explanation :
Amoebic dysentery (or amebic dysentery) is a type of dysentery caused primarily by the amoeba Entamoeba histolytica. Amoebic dysentery is transmitted through contaminated food and water. Amoebae spread by forming infective cysts which can be found in stools, and spread if whoever touches them does not sanitize their hands. There are also free amoebae, or trophozoites, that do not form cysts, however trophozoites do not survive long outside of the human gastrointestinal tract, and are a purely diagnostic observation.
[10] If the blood group of one parent is AB and that of the other O, the possible blood group of their child would be -
A.
A or B
B.
A or B or O
C.
A or AB or O
D.
A or B or AB or O
Ans:
A or B
Explanation :
Everyone has two copies of the gene for blood type (and for most other genes as well). Since O is a recessive trait that means that someone with type O blood must have two copies of the O gene. Types A and B are dominant, and since they're co-dominant, someone with type AB blood must have the A gene and the B gene. In reproduction, the offspring get one copy of each gene from each parent. Since the type O parent has two copies of the O gene, it's assured that the offspring will get one of them.
[11] How many bones are there in the human body?
A.
187
B.
287
C.
206
D.
306
Ans:
206
Explanation :
There are 206 bones in an normal adult skeleton. A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations. These include: 22 Cranial and Facial Bones; 6 Ear Bones; 1 Throat Bone; 4 Shoulder Bones; 25 Chest Bones; 26 Vertebral Bones; 6 Arm and Forearm bones; 54 Hand Bones; 2 Pelvic Bones; 8 Leg Bones; and 52 Foot Bones.
[12] Which one of the following animals is called farmer's friend -
A.
Ant
B.
Earthworm
C.
Bee
D.
Butterfly
Ans:
Earthworm
Explanation :
Earthworms travel underground by the means of waves of muscular contractions which alternately shorten and lengthen the body. The shortened part is anchored to the surrounding soil by tiny claw-like bristles (setae) set along its segmented length. In all the body segments except the first, last and clitellum, there is a ring of S-shaped setae embedded in the epidermal pit of each segment (perichaetine). The whole burrowing process is aided by the secretion of lubricating mucus. Worms can make gurgling noises underground when disturbed as a result of the worm moving through its lubricated tunnels. They also work as biological “pistons” forcing air through the tunnels as they move. Thus earthworm activity aerates and mixes the soil, and is constructive to mineralization and nutrient uptake by vegetation. Certain species of earthworm come to the surface and graze on the higher concentrations of organic matter present there, mixing it with the mineral soil. Because a high level of organic matter mixing is associated with soil fertility, an abundance of earthworms is beneficial to the organic gardener.
[13] The term ‘gene’ was coined by -
A.
T. H. Morgan
B.
W. L. Johanssen
C.
G. Mendel
D.
De Vries
Ans:
W. L. Johanssen
Explanation :
Wilhelm Johannsen was a Danish botanist, plant physiologist and geneticist. His most well-known research concerned so-called pure lines of the selffertile common bean. He was able to show that even in populations homozygous for all traits, i.e. without genetic variation, seed size followed a normal distribution. This was attributable to resource provision to the mother plant and to the position of seeds in pods and of pods on the plant.
[14] The study of visceral organs is -
A.
Angiology
B.
Arthrology
C.
Anthrology
D.
Splanchnology
Ans:
Splanchnology
Explanation :
Splanchology is the scientific study of the viscera and its organs. It studies the characteristics and structure of the visceral system of an animal. It is the study of viscera, which are the organs situated in the thoracic, abdominal and pelvic cavities of the body, and are associated with pleura and peritoneum. There are four major systems identified in the viscera according to their functions, and they are the digestive system, the respiratory system, the urinary system, and the reproductive system. These four major systems are to process bodily intakes for metabolism such as nutrients and oxygen from surrounding and to remove the wastes from the body. One last function of the viscera is to ensure the survival of the species as a whole by conducting the process of reproduction.
[15] The branch of biology dealing with the study of cells is known as -
A.
Cytology
B.
Histology
C.
Psychology
D.
Physiology
Ans:
Cytology
Explanation :
Cytology means "the study of cells". Cytology is that branch of life science, which deals with the study of cells in terms of structure, function and chemistry. Based on usage it can refer to: Cytopathology: the study of cellular disease and the use of cellular changes for the diagnosis of disease; and Cell biology: the study of (normal) cellular anatomy, function and chemistry.
[16] The blood cholesterol level in 100ml of blood in a normal person varies between —
A.
150 and 200 mg
B.
120 and 200 mg
C.
100 and 180 mg
D.
80 and 160 mg
Ans:
150 and 200 mg
Explanation :
Cholesterol is defined as a waxy alcohol, fat-like substance that occurs naturally in all areas of the human body. Cholesterol is measured in milligrams per 100 millimetres of blood. The normal level of cholesterol varies between 150-200 mg per 100 ml. Any increase in cholesterol level leads to hypercholesterolemia or high cholesterol. Normal cholesterol is 180 mg/dl or 180 mg/ 144ml. < 200 mg/dl is considered to be normal blood cholesterol; 200-239 mg/dL borderline-high; and > 240 mg/dl high cholesterol.
[17] Thalassemia is a hereditary disease. It affects -
A.
Blood
B.
Spleen
C.
Lungs
D.
Heart
Ans:
Blood
Explanation :
Thalassemia is forms of inherited autosomal recessive blood disorders that originated in the Mediterranean region. In thalassemia, the disease is caused by the weakening and destruction of red blood cells. Whilst possessing the ability to cause significant complications, including anaemia, iron overload, bone deformities and cardiovascular illness, thalassemia may confer a degree of protection against malaria, which is or was prevalent in the regions where the trait is common.
[18] Which of the following represents a foodchain involving a producer, a vegetarian and a non vegetarian?
A.
Grass — Insect — Elephant
B.
Plant — Rabbit — Tiger
C.
Fish - Insect - Whale
D.
Tiger — Rabbit - Owl
Ans:
Plant — Rabbit — Tiger
Explanation :
A food chain is a linear sequence of links in a food web starting from a trophic species that eats no other species in the web and ends at a trophic species that is eaten by no other species in the web. Plant, rabbit and tiger form a food chain where plant represents producer, rabbits represent a vegetarian, while tiger represents a non-vegetarian.
[19] Which of the following is a large blood vessel that carries blood away from the heart?
A.
Vein
B.
Artery
C.
Capillary
D.
Nerve
Ans:
Artery
Explanation :
The pulmonary artery carries blood from the right side of the heart to the lungs to pick up a fresh supply of oxygen.
[20] Nitrogen fixing bacteria found in the root nodules of leguminous plant is:-
A.
Saprophytic
B.
Parasitic
C.
Symbiotic
D.
Autotrophic
Ans:
Symbiotic
Explanation :
Many legumes have root nodules that provide a home for symbiotic nitrogen-fixing bacteria called rhizobia. This relationship is particularly common in nitrogen-limited conditions.
[21] The total number of vertebrae in a human being is -
A.
26
B.
30
C.
29
D.
33
Ans:
33
Explanation :
The vertebral column, also known as backbone or spine, is a bony structure found in Vertebrates. It is formed from the vertebrae.
[22] On the average, what percent age of human body has the element of oxygen?
A.
65
B.
25
C.
10
D.
5
Ans:
65
Explanation :
This element is obviously the most important element in the human body. Oxygen atoms are present in water, which is the compound most common in the body, and other compounds that make up tissues. It is also found in the blood and lungs due to respiration. In the human body, the oxygen is absorbed by the blood stream in the lungs, being then transported to the cells where an elaborated change process takes place. Oxygen plays a vital role in the breathing processes and in the metabolism of the living organisms.
[23] The is responsible for precision of voluntary actions and for maintaining the posture and balance of the body.
A.
Mid-brain
B.
Cerebellum
C.
Cerebrum
D.
Spinal cord
Ans:
Cerebellum
Explanation :
Cerebellum is responsible for precision of voluntary actions and maintaining the posture and balance of the body. Activities like walking in a straight line, riding a bicycle picking up a pencil are possible due to cerebellum.
[24] The age of trees is determined by its -
A.
girth
B.
height
C.
growth rings
D.
general appearance
Ans:
growth rings
Explanation :
Growth rings can determine the age of the trees. Growth rings, also referred to as tree rings or annual rings, can be seen in a horizontal cross section cut through the trunk of a tree. Growth rings are the result of new growth in the vascular cambium.
[25] Yeast, used in making bread is a -
A.
fungus
B.
Plant
C.
bacteria
D.
seed
Ans:
fungus
Explanation :
Yeast are single-celled microorganisms that are classified, along with molds and mushrooms, as members of the Kingdom Fungi.
Explanation :
There are 206 bones in an normal adult skeleton. A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations. These include: 22 Cranial and Facial Bones; 6 Ear Bones; 1 Throat Bone; 4 Shoulder Bones; 25 Chest Bones; 26 Vertebral Bones; 6 Arm and Forearm bones; 54 Hand Bones; 2 Pelvic Bones; 8 Leg Bones; and 52 Foot Bones.
[12] Which one of the following animals is called farmer's friend -
A.
Ant
B.
Earthworm
C.
Bee
D.
Butterfly
Ans:
Earthworm
Explanation :
Earthworms travel underground by the means of waves of muscular contractions which alternately shorten and lengthen the body. The shortened part is anchored to the surrounding soil by tiny claw-like bristles (setae) set along its segmented length. In all the body segments except the first, last and clitellum, there is a ring of S-shaped setae embedded in the epidermal pit of each segment (perichaetine). The whole burrowing process is aided by the secretion of lubricating mucus. Worms can make gurgling noises underground when disturbed as a result of the worm moving through its lubricated tunnels. They also work as biological “pistons” forcing air through the tunnels as they move. Thus earthworm activity aerates and mixes the soil, and is constructive to mineralization and nutrient uptake by vegetation. Certain species of earthworm come to the surface and graze on the higher concentrations of organic matter present there, mixing it with the mineral soil. Because a high level of organic matter mixing is associated with soil fertility, an abundance of earthworms is beneficial to the organic gardener.
[13] The term ‘gene’ was coined by -
A.
T. H. Morgan
B.
W. L. Johanssen
C.
G. Mendel
D.
De Vries
Ans:
W. L. Johanssen
Explanation :
Wilhelm Johannsen was a Danish botanist, plant physiologist and geneticist. His most well-known research concerned so-called pure lines of the selffertile common bean. He was able to show that even in populations homozygous for all traits, i.e. without genetic variation, seed size followed a normal distribution. This was attributable to resource provision to the mother plant and to the position of seeds in pods and of pods on the plant.
[14] The study of visceral organs is -
A.
Angiology
B.
Arthrology
C.
Anthrology
D.
Splanchnology
Ans:
Splanchnology
Explanation :
Splanchology is the scientific study of the viscera and its organs. It studies the characteristics and structure of the visceral system of an animal. It is the study of viscera, which are the organs situated in the thoracic, abdominal and pelvic cavities of the body, and are associated with pleura and peritoneum. There are four major systems identified in the viscera according to their functions, and they are the digestive system, the respiratory system, the urinary system, and the reproductive system. These four major systems are to process bodily intakes for metabolism such as nutrients and oxygen from surrounding and to remove the wastes from the body. One last function of the viscera is to ensure the survival of the species as a whole by conducting the process of reproduction.
[15] The branch of biology dealing with the study of cells is known as -
A.
Cytology
B.
Histology
C.
Psychology
D.
Physiology
Ans:
Cytology
Explanation :
Cytology means "the study of cells". Cytology is that branch of life science, which deals with the study of cells in terms of structure, function and chemistry. Based on usage it can refer to: Cytopathology: the study of cellular disease and the use of cellular changes for the diagnosis of disease; and Cell biology: the study of (normal) cellular anatomy, function and chemistry.
[16] The blood cholesterol level in 100ml of blood in a normal person varies between —
A.
150 and 200 mg
B.
120 and 200 mg
C.
100 and 180 mg
D.
80 and 160 mg
Ans:
150 and 200 mg
Explanation :
Cholesterol is defined as a waxy alcohol, fat-like substance that occurs naturally in all areas of the human body. Cholesterol is measured in milligrams per 100 millimetres of blood. The normal level of cholesterol varies between 150-200 mg per 100 ml. Any increase in cholesterol level leads to hypercholesterolemia or high cholesterol. Normal cholesterol is 180 mg/dl or 180 mg/ 144ml. < 200 mg/dl is considered to be normal blood cholesterol; 200-239 mg/dL borderline-high; and > 240 mg/dl high cholesterol.
[17] Thalassemia is a hereditary disease. It affects -
A.
Blood
B.
Spleen
C.
Lungs
D.
Heart
Ans:
Blood
Explanation :
Thalassemia is forms of inherited autosomal recessive blood disorders that originated in the Mediterranean region. In thalassemia, the disease is caused by the weakening and destruction of red blood cells. Whilst possessing the ability to cause significant complications, including anaemia, iron overload, bone deformities and cardiovascular illness, thalassemia may confer a degree of protection against malaria, which is or was prevalent in the regions where the trait is common.
[18] Which of the following represents a foodchain involving a producer, a vegetarian and a non vegetarian?
A.
Grass — Insect — Elephant
B.
Plant — Rabbit — Tiger
C.
Fish - Insect - Whale
D.
Tiger — Rabbit - Owl
Ans:
Plant — Rabbit — Tiger
Explanation :
A food chain is a linear sequence of links in a food web starting from a trophic species that eats no other species in the web and ends at a trophic species that is eaten by no other species in the web. Plant, rabbit and tiger form a food chain where plant represents producer, rabbits represent a vegetarian, while tiger represents a non-vegetarian.
[19] Which of the following is a large blood vessel that carries blood away from the heart?
A.
Vein
B.
Artery
C.
Capillary
D.
Nerve
Ans:
Artery
Explanation :
The pulmonary artery carries blood from the right side of the heart to the lungs to pick up a fresh supply of oxygen.
[20] Nitrogen fixing bacteria found in the root nodules of leguminous plant is:-
A.
Saprophytic
B.
Parasitic
C.
Symbiotic
D.
Autotrophic
Ans:
Symbiotic
Explanation :
Many legumes have root nodules that provide a home for symbiotic nitrogen-fixing bacteria called rhizobia. This relationship is particularly common in nitrogen-limited conditions.
[21] The total number of vertebrae in a human being is -
A.
26
B.
30
C.
29
D.
33
Ans:
33
Explanation :
The vertebral column, also known as backbone or spine, is a bony structure found in Vertebrates. It is formed from the vertebrae.
[22] On the average, what percent age of human body has the element of oxygen?
A.
65
B.
25
C.
10
D.
5
Ans:
65
Explanation :
This element is obviously the most important element in the human body. Oxygen atoms are present in water, which is the compound most common in the body, and other compounds that make up tissues. It is also found in the blood and lungs due to respiration. In the human body, the oxygen is absorbed by the blood stream in the lungs, being then transported to the cells where an elaborated change process takes place. Oxygen plays a vital role in the breathing processes and in the metabolism of the living organisms.
[23] The is responsible for precision of voluntary actions and for maintaining the posture and balance of the body.
A.
Mid-brain
B.
Cerebellum
C.
Cerebrum
D.
Spinal cord
Ans:
Cerebellum
Explanation :
Cerebellum is responsible for precision of voluntary actions and maintaining the posture and balance of the body. Activities like walking in a straight line, riding a bicycle picking up a pencil are possible due to cerebellum.
[24] The age of trees is determined by its -
A.
girth
B.
height
C.
growth rings
D.
general appearance
Ans:
growth rings
Explanation :
Growth rings can determine the age of the trees. Growth rings, also referred to as tree rings or annual rings, can be seen in a horizontal cross section cut through the trunk of a tree. Growth rings are the result of new growth in the vascular cambium.
[25] Yeast, used in making bread is a -
A.
fungus
B.
Plant
C.
bacteria
D.
seed
Ans:
fungus
Explanation :
Yeast are single-celled microorganisms that are classified, along with molds and mushrooms, as members of the Kingdom Fungi.
Explanation :
Wilhelm Johannsen was a Danish botanist, plant physiologist and geneticist. His most well-known research concerned so-called pure lines of the selffertile common bean. He was able to show that even in populations homozygous for all traits, i.e. without genetic variation, seed size followed a normal distribution. This was attributable to resource provision to the mother plant and to the position of seeds in pods and of pods on the plant.
[14] The study of visceral organs is -
A.
Angiology
B.
Arthrology
C.
Anthrology
D.
Splanchnology
Ans:
Splanchnology
Explanation :
Splanchology is the scientific study of the viscera and its organs. It studies the characteristics and structure of the visceral system of an animal. It is the study of viscera, which are the organs situated in the thoracic, abdominal and pelvic cavities of the body, and are associated with pleura and peritoneum. There are four major systems identified in the viscera according to their functions, and they are the digestive system, the respiratory system, the urinary system, and the reproductive system. These four major systems are to process bodily intakes for metabolism such as nutrients and oxygen from surrounding and to remove the wastes from the body. One last function of the viscera is to ensure the survival of the species as a whole by conducting the process of reproduction.
[15] The branch of biology dealing with the study of cells is known as -
A.
Cytology
B.
Histology
C.
Psychology
D.
Physiology
Ans:
Cytology
Explanation :
Cytology means "the study of cells". Cytology is that branch of life science, which deals with the study of cells in terms of structure, function and chemistry. Based on usage it can refer to: Cytopathology: the study of cellular disease and the use of cellular changes for the diagnosis of disease; and Cell biology: the study of (normal) cellular anatomy, function and chemistry.
[16] The blood cholesterol level in 100ml of blood in a normal person varies between —
A.
150 and 200 mg
B.
120 and 200 mg
C.
100 and 180 mg
D.
80 and 160 mg
Ans:
150 and 200 mg
Explanation :
Cholesterol is defined as a waxy alcohol, fat-like substance that occurs naturally in all areas of the human body. Cholesterol is measured in milligrams per 100 millimetres of blood. The normal level of cholesterol varies between 150-200 mg per 100 ml. Any increase in cholesterol level leads to hypercholesterolemia or high cholesterol. Normal cholesterol is 180 mg/dl or 180 mg/ 144ml. < 200 mg/dl is considered to be normal blood cholesterol; 200-239 mg/dL borderline-high; and > 240 mg/dl high cholesterol.
[17] Thalassemia is a hereditary disease. It affects -
A.
Blood
B.
Spleen
C.
Lungs
D.
Heart
Ans:
Blood
Explanation :
Thalassemia is forms of inherited autosomal recessive blood disorders that originated in the Mediterranean region. In thalassemia, the disease is caused by the weakening and destruction of red blood cells. Whilst possessing the ability to cause significant complications, including anaemia, iron overload, bone deformities and cardiovascular illness, thalassemia may confer a degree of protection against malaria, which is or was prevalent in the regions where the trait is common.
[18] Which of the following represents a foodchain involving a producer, a vegetarian and a non vegetarian?
A.
Grass — Insect — Elephant
B.
Plant — Rabbit — Tiger
C.
Fish - Insect - Whale
D.
Tiger — Rabbit - Owl
Ans:
Plant — Rabbit — Tiger
Explanation :
A food chain is a linear sequence of links in a food web starting from a trophic species that eats no other species in the web and ends at a trophic species that is eaten by no other species in the web. Plant, rabbit and tiger form a food chain where plant represents producer, rabbits represent a vegetarian, while tiger represents a non-vegetarian.
[19] Which of the following is a large blood vessel that carries blood away from the heart?
A.
Vein
B.
Artery
C.
Capillary
D.
Nerve
Ans:
Artery
Explanation :
The pulmonary artery carries blood from the right side of the heart to the lungs to pick up a fresh supply of oxygen.
[20] Nitrogen fixing bacteria found in the root nodules of leguminous plant is:-
A.
Saprophytic
B.
Parasitic
C.
Symbiotic
D.
Autotrophic
Ans:
Symbiotic
Explanation :
Many legumes have root nodules that provide a home for symbiotic nitrogen-fixing bacteria called rhizobia. This relationship is particularly common in nitrogen-limited conditions.
[21] The total number of vertebrae in a human being is -
A.
26
B.
30
C.
29
D.
33
Ans:
33
Explanation :
The vertebral column, also known as backbone or spine, is a bony structure found in Vertebrates. It is formed from the vertebrae.
[22] On the average, what percent age of human body has the element of oxygen?
A.
65
B.
25
C.
10
D.
5
Ans:
65
Explanation :
This element is obviously the most important element in the human body. Oxygen atoms are present in water, which is the compound most common in the body, and other compounds that make up tissues. It is also found in the blood and lungs due to respiration. In the human body, the oxygen is absorbed by the blood stream in the lungs, being then transported to the cells where an elaborated change process takes place. Oxygen plays a vital role in the breathing processes and in the metabolism of the living organisms.
[23] The is responsible for precision of voluntary actions and for maintaining the posture and balance of the body.
A.
Mid-brain
B.
Cerebellum
C.
Cerebrum
D.
Spinal cord
Ans:
Cerebellum
Explanation :
Cerebellum is responsible for precision of voluntary actions and maintaining the posture and balance of the body. Activities like walking in a straight line, riding a bicycle picking up a pencil are possible due to cerebellum.
[24] The age of trees is determined by its -
A.
girth
B.
height
C.
growth rings
D.
general appearance
Ans:
growth rings
Explanation :
Growth rings can determine the age of the trees. Growth rings, also referred to as tree rings or annual rings, can be seen in a horizontal cross section cut through the trunk of a tree. Growth rings are the result of new growth in the vascular cambium.
[25] Yeast, used in making bread is a -
A.
fungus
B.
Plant
C.
bacteria
D.
seed
Ans:
fungus
Explanation :
Yeast are single-celled microorganisms that are classified, along with molds and mushrooms, as members of the Kingdom Fungi.
Explanation :
Cytology means "the study of cells". Cytology is that branch of life science, which deals with the study of cells in terms of structure, function and chemistry. Based on usage it can refer to: Cytopathology: the study of cellular disease and the use of cellular changes for the diagnosis of disease; and Cell biology: the study of (normal) cellular anatomy, function and chemistry.
[16] The blood cholesterol level in 100ml of blood in a normal person varies between —
A.
150 and 200 mg
B.
120 and 200 mg
C.
100 and 180 mg
D.
80 and 160 mg
Ans:
150 and 200 mg
Explanation :
Cholesterol is defined as a waxy alcohol, fat-like substance that occurs naturally in all areas of the human body. Cholesterol is measured in milligrams per 100 millimetres of blood. The normal level of cholesterol varies between 150-200 mg per 100 ml. Any increase in cholesterol level leads to hypercholesterolemia or high cholesterol. Normal cholesterol is 180 mg/dl or 180 mg/ 144ml. < 200 mg/dl is considered to be normal blood cholesterol; 200-239 mg/dL borderline-high; and > 240 mg/dl high cholesterol.
[17] Thalassemia is a hereditary disease. It affects -
A.
Blood
B.
Spleen
C.
Lungs
D.
Heart
Ans:
Blood
Explanation :
Thalassemia is forms of inherited autosomal recessive blood disorders that originated in the Mediterranean region. In thalassemia, the disease is caused by the weakening and destruction of red blood cells. Whilst possessing the ability to cause significant complications, including anaemia, iron overload, bone deformities and cardiovascular illness, thalassemia may confer a degree of protection against malaria, which is or was prevalent in the regions where the trait is common.
[18] Which of the following represents a foodchain involving a producer, a vegetarian and a non vegetarian?
A.
Grass — Insect — Elephant
B.
Plant — Rabbit — Tiger
C.
Fish - Insect - Whale
D.
Tiger — Rabbit - Owl
Ans:
Plant — Rabbit — Tiger
Explanation :
A food chain is a linear sequence of links in a food web starting from a trophic species that eats no other species in the web and ends at a trophic species that is eaten by no other species in the web. Plant, rabbit and tiger form a food chain where plant represents producer, rabbits represent a vegetarian, while tiger represents a non-vegetarian.
[19] Which of the following is a large blood vessel that carries blood away from the heart?
A.
Vein
B.
Artery
C.
Capillary
D.
Nerve
Ans:
Artery
Explanation :
The pulmonary artery carries blood from the right side of the heart to the lungs to pick up a fresh supply of oxygen.
[20] Nitrogen fixing bacteria found in the root nodules of leguminous plant is:-
A.
Saprophytic
B.
Parasitic
C.
Symbiotic
D.
Autotrophic
Ans:
Symbiotic
Explanation :
Many legumes have root nodules that provide a home for symbiotic nitrogen-fixing bacteria called rhizobia. This relationship is particularly common in nitrogen-limited conditions.
[21] The total number of vertebrae in a human being is -
A.
26
B.
30
C.
29
D.
33
Ans:
33
Explanation :
The vertebral column, also known as backbone or spine, is a bony structure found in Vertebrates. It is formed from the vertebrae.
[22] On the average, what percent age of human body has the element of oxygen?
A.
65
B.
25
C.
10
D.
5
Ans:
65
Explanation :
This element is obviously the most important element in the human body. Oxygen atoms are present in water, which is the compound most common in the body, and other compounds that make up tissues. It is also found in the blood and lungs due to respiration. In the human body, the oxygen is absorbed by the blood stream in the lungs, being then transported to the cells where an elaborated change process takes place. Oxygen plays a vital role in the breathing processes and in the metabolism of the living organisms.
[23] The is responsible for precision of voluntary actions and for maintaining the posture and balance of the body.
A.
Mid-brain
B.
Cerebellum
C.
Cerebrum
D.
Spinal cord
Ans:
Cerebellum
Explanation :
Cerebellum is responsible for precision of voluntary actions and maintaining the posture and balance of the body. Activities like walking in a straight line, riding a bicycle picking up a pencil are possible due to cerebellum.
[24] The age of trees is determined by its -
A.
girth
B.
height
C.
growth rings
D.
general appearance
Ans:
growth rings
Explanation :
Growth rings can determine the age of the trees. Growth rings, also referred to as tree rings or annual rings, can be seen in a horizontal cross section cut through the trunk of a tree. Growth rings are the result of new growth in the vascular cambium.
[25] Yeast, used in making bread is a -
A.
fungus
B.
Plant
C.
bacteria
D.
seed
Ans:
fungus
Explanation :
Yeast are single-celled microorganisms that are classified, along with molds and mushrooms, as members of the Kingdom Fungi.
Explanation :
Thalassemia is forms of inherited autosomal recessive blood disorders that originated in the Mediterranean region. In thalassemia, the disease is caused by the weakening and destruction of red blood cells. Whilst possessing the ability to cause significant complications, including anaemia, iron overload, bone deformities and cardiovascular illness, thalassemia may confer a degree of protection against malaria, which is or was prevalent in the regions where the trait is common.
[18] Which of the following represents a foodchain involving a producer, a vegetarian and a non vegetarian?
A.
Grass — Insect — Elephant
B.
Plant — Rabbit — Tiger
C.
Fish - Insect - Whale
D.
Tiger — Rabbit - Owl
Ans:
Plant — Rabbit — Tiger
Explanation :
A food chain is a linear sequence of links in a food web starting from a trophic species that eats no other species in the web and ends at a trophic species that is eaten by no other species in the web. Plant, rabbit and tiger form a food chain where plant represents producer, rabbits represent a vegetarian, while tiger represents a non-vegetarian.
[19] Which of the following is a large blood vessel that carries blood away from the heart?
A.
Vein
B.
Artery
C.
Capillary
D.
Nerve
Ans:
Artery
Explanation :
The pulmonary artery carries blood from the right side of the heart to the lungs to pick up a fresh supply of oxygen.
[20] Nitrogen fixing bacteria found in the root nodules of leguminous plant is:-
A.
Saprophytic
B.
Parasitic
C.
Symbiotic
D.
Autotrophic
Ans:
Symbiotic
Explanation :
Many legumes have root nodules that provide a home for symbiotic nitrogen-fixing bacteria called rhizobia. This relationship is particularly common in nitrogen-limited conditions.
[21] The total number of vertebrae in a human being is -
A.
26
B.
30
C.
29
D.
33
Ans:
33
Explanation :
The vertebral column, also known as backbone or spine, is a bony structure found in Vertebrates. It is formed from the vertebrae.
[22] On the average, what percent age of human body has the element of oxygen?
A.
65
B.
25
C.
10
D.
5
Ans:
65
Explanation :
This element is obviously the most important element in the human body. Oxygen atoms are present in water, which is the compound most common in the body, and other compounds that make up tissues. It is also found in the blood and lungs due to respiration. In the human body, the oxygen is absorbed by the blood stream in the lungs, being then transported to the cells where an elaborated change process takes place. Oxygen plays a vital role in the breathing processes and in the metabolism of the living organisms.
[23] The is responsible for precision of voluntary actions and for maintaining the posture and balance of the body.
A.
Mid-brain
B.
Cerebellum
C.
Cerebrum
D.
Spinal cord
Ans:
Cerebellum
Explanation :
Cerebellum is responsible for precision of voluntary actions and maintaining the posture and balance of the body. Activities like walking in a straight line, riding a bicycle picking up a pencil are possible due to cerebellum.
[24] The age of trees is determined by its -
A.
girth
B.
height
C.
growth rings
D.
general appearance
Ans:
growth rings
Explanation :
Growth rings can determine the age of the trees. Growth rings, also referred to as tree rings or annual rings, can be seen in a horizontal cross section cut through the trunk of a tree. Growth rings are the result of new growth in the vascular cambium.
[25] Yeast, used in making bread is a -
A.
fungus
B.
Plant
C.
bacteria
D.
seed
Ans:
fungus
Explanation :
Yeast are single-celled microorganisms that are classified, along with molds and mushrooms, as members of the Kingdom Fungi.
Explanation :
The pulmonary artery carries blood from the right side of the heart to the lungs to pick up a fresh supply of oxygen.
[20] Nitrogen fixing bacteria found in the root nodules of leguminous plant is:-
A.
Saprophytic
B.
Parasitic
C.
Symbiotic
D.
Autotrophic
Ans:
Symbiotic
Explanation :
Many legumes have root nodules that provide a home for symbiotic nitrogen-fixing bacteria called rhizobia. This relationship is particularly common in nitrogen-limited conditions.
[21] The total number of vertebrae in a human being is -
A.
26
B.
30
C.
29
D.
33
Ans:
33
Explanation :
The vertebral column, also known as backbone or spine, is a bony structure found in Vertebrates. It is formed from the vertebrae.
[22] On the average, what percent age of human body has the element of oxygen?
A.
65
B.
25
C.
10
D.
5
Ans:
65
Explanation :
This element is obviously the most important element in the human body. Oxygen atoms are present in water, which is the compound most common in the body, and other compounds that make up tissues. It is also found in the blood and lungs due to respiration. In the human body, the oxygen is absorbed by the blood stream in the lungs, being then transported to the cells where an elaborated change process takes place. Oxygen plays a vital role in the breathing processes and in the metabolism of the living organisms.
[23] The is responsible for precision of voluntary actions and for maintaining the posture and balance of the body.
A.
Mid-brain
B.
Cerebellum
C.
Cerebrum
D.
Spinal cord
Ans:
Cerebellum
Explanation :
Cerebellum is responsible for precision of voluntary actions and maintaining the posture and balance of the body. Activities like walking in a straight line, riding a bicycle picking up a pencil are possible due to cerebellum.
[24] The age of trees is determined by its -
A.
girth
B.
height
C.
growth rings
D.
general appearance
Ans:
growth rings
Explanation :
Growth rings can determine the age of the trees. Growth rings, also referred to as tree rings or annual rings, can be seen in a horizontal cross section cut through the trunk of a tree. Growth rings are the result of new growth in the vascular cambium.
[25] Yeast, used in making bread is a -
A.
fungus
B.
Plant
C.
bacteria
D.
seed
Ans:
fungus
Explanation :
Yeast are single-celled microorganisms that are classified, along with molds and mushrooms, as members of the Kingdom Fungi.
Explanation :
The vertebral column, also known as backbone or spine, is a bony structure found in Vertebrates. It is formed from the vertebrae.
[22] On the average, what percent age of human body has the element of oxygen?
A.
65
B.
25
C.
10
D.
5
Ans:
65
Explanation :
This element is obviously the most important element in the human body. Oxygen atoms are present in water, which is the compound most common in the body, and other compounds that make up tissues. It is also found in the blood and lungs due to respiration. In the human body, the oxygen is absorbed by the blood stream in the lungs, being then transported to the cells where an elaborated change process takes place. Oxygen plays a vital role in the breathing processes and in the metabolism of the living organisms.
[23] The is responsible for precision of voluntary actions and for maintaining the posture and balance of the body.
A.
Mid-brain
B.
Cerebellum
C.
Cerebrum
D.
Spinal cord
Ans:
Cerebellum
Explanation :
Cerebellum is responsible for precision of voluntary actions and maintaining the posture and balance of the body. Activities like walking in a straight line, riding a bicycle picking up a pencil are possible due to cerebellum.
[24] The age of trees is determined by its -
A.
girth
B.
height
C.
growth rings
D.
general appearance
Ans:
growth rings
Explanation :
Growth rings can determine the age of the trees. Growth rings, also referred to as tree rings or annual rings, can be seen in a horizontal cross section cut through the trunk of a tree. Growth rings are the result of new growth in the vascular cambium.
[25] Yeast, used in making bread is a -
A.
fungus
B.
Plant
C.
bacteria
D.
seed
Ans:
fungus
Explanation :
Yeast are single-celled microorganisms that are classified, along with molds and mushrooms, as members of the Kingdom Fungi.
Explanation :
Cerebellum is responsible for precision of voluntary actions and maintaining the posture and balance of the body. Activities like walking in a straight line, riding a bicycle picking up a pencil are possible due to cerebellum.
[24] The age of trees is determined by its -
A.
girth
B.
height
C.
growth rings
D.
general appearance
Ans:
growth rings
Explanation :
Growth rings can determine the age of the trees. Growth rings, also referred to as tree rings or annual rings, can be seen in a horizontal cross section cut through the trunk of a tree. Growth rings are the result of new growth in the vascular cambium.
[25] Yeast, used in making bread is a -
A.
fungus
B.
Plant
C.
bacteria
D.
seed
Ans:
fungus
Explanation :
Yeast are single-celled microorganisms that are classified, along with molds and mushrooms, as members of the Kingdom Fungi.
Explanation :
Yeast are single-celled microorganisms that are classified, along with molds and mushrooms, as members of the Kingdom Fungi.