[1] Taxonomy is a science that deals with -
A.
Morphology
B.
Anatomy
C.
Classification
D.
Economic uses
Ans:
Classification
Explanation :
Taxonomy is the academic discipline of defining groups of biological organisms on the basis of shared characteristics and giving names to those groups. Each group is given a rank and groups of a given rank can be aggregated to form a super group of higher rank and thus create a hierarchical classification.
[2] The outer skin most of the crustaceans are made up of a carbohydrate. This carbohydrate is -
A.
cellulose
B.
galactose
C.
chitin
D.
starch
Ans:
chitin
Explanation :
All crustaceans have a body covered with a protective shell composed of a horny substance called chiton. The outer skeleton is not continuous but made up of divided sections called somites.
[3] A molecule in plants comparable to haemoglobin in animals is -
A.
Cytochrome
B.
Cellulose
C.
Chlorophyll
D.
Carotene
Ans:
Chlorophyll
Explanation :
Hemoglobin is the, iron-containing oxygen-transport met alloprotein in the red blood cells of all vertebrates. Similarly, Cytochromes are, in general, membrane-bound hemeproteins containing helm, groups and are primarily responsible for the generation of ATP via electron transport.
[4] An Antigen is -
A.
the result of Antibody
B.
the opposite of Antibody
C.
the stimulus for Antibody formation
D.
the residue of an Antibody
Ans:
the stimulus for Antibody formation
Explanation :
Antigens are defined as substances recognized by the body as foreign, causing the body to produce an antibody to react specifically with it. Antibodies are proteins produced by lymphocytes as a result of stimulation by an antigen which can then interact specifically with that particular antigen.
[5] Blood does not coagulate inside the body due to the presence of -
A.
Plasma
B.
Haemoglobin
C.
Heparin
D.
Fibrin
Ans:
Heparin
Explanation :
Heparin is a naturally-occurring anticoagulant produced by basophils and mast cells. Heparin acts as an anticoagulant, preventing the formation of clots and extension of existing clots within the blood. Heparin is present in the walls of blood vessels where it doesn't allow blood to clot.
[6] Leech is an ectoparasite on cattle, which is -
A.
Carnivorous
B.
Omnivorous
C.
Sangu1omus
D.
Herbivorous
Ans:
Herbivorous
Explanation :
A herbivore is an organism anatomically and physiologically adapted to plant material, for example foliage, as the main component of its diet. Cattle are herbivorous animals.
[7] Blood pressure may be increased by the excessive secretion of -
A.
Thyroxine
B.
Testosterone
C.
Estradiol
D.
Estrol
Ans:
Thyroxine
Explanation :
With its excess secretion, also known as hyper secretion, thyroxin (T4) causes an increased heart rate, high blood pressure, possible palpitations, and could lead to heart failure. It is related to hyperthyroidism.
[8] exhaled from the polluted atmosphere is often filtered out during the process of -
A.
Coughing
B.
Sneezing
C.
A and B
D.
Urination
Ans:
Sneezing
Explanation :
PM-10 is a particulate matter having an aerodynamic diameter of less than 10 gym. Particles larger than 10 microns tend to be filtered out in the nose and therefore do not enter the respiratory tract. 926.
[9] Which of the following organelles are called the Protein Factories of the cell?
A.
Chloroplasts
B.
Lysosomes
C.
Mitochondria
D.
Ribosomes
Ans:
Ribosomes
Explanation :
The ribosome works as the protein factory in every living cell. It gathers amino acids and assembles them into protein chains to make almost anything the cell needs.
[10] Which of the following structures present in mammalian skin directly helps in keeping the body warm?
A.
Pigmented cells
B.
Sweat glands
C.
Lymph vessels
D.
Blood capillaries
Ans:
Lymph vessels
Explanation :
The lymphatic system consists of a network of specialized lymphatic vessels and various tissues and organs throughout the body that contain lymphocytes (White Blood Cells) and other cells that help the body fight infection and disease. The lymphatic vessels are similar to veins but have thinner walls. Some of these vessels are very close to the skin surface and can be found near veins; others are just under the skin and in the deeper fatty tissues near the muscles and can be found near arteries.
[11] Crude oil is sometimes termed sweet because it is -
A.
sweet in taste due to dissolved sugars
B.
mildly sweet due to low sulphur content
C.
less acidic
D.
less alkaline
Ans:
mildly sweet due to low sulphur content
Explanation :
Petroleum containing higher levels of sulfur is called sour crude oil. Sweet crude oil contains small amounts of hydrogen sulfide and carbon dioxide. The term "sweet" originates from the fact that a low level of sulfur provides the oil with a relatively sweet taste and pleasant smell, compared to sulfurous oil.
[12] Master copy of genetic information is -
A.
DNA
B.
Nucleus
C.
r-RNA
D.
m-RNA
Ans:
DNA
Explanation :
As DNA contains all the hereditary information, is called master copy of genetic information. It replicates its carbon copies when new master copies are required. It forms working copies in the form of mRNAS.
[13] In coriander, the useful parts are -
A.
roots & leaves
B.
leaves & flowers
C.
leaves & dried fruits
D.
flowers & dried fruits
Ans:
leaves & dried fruits
Explanation :
Coriander (Coriandrum sativum), also known as cilantro, Chinese parsley or dhania, is an annual herb in the family Apiaceae. All parts of the plant are edible, but the fresh leaves and the dried seeds are the parts most traditionally used in cooking. The fresh leaves are an ingredient in many South Asian foods (such as chutneys and salads), in Chinese dishes, in Mexican cooking, particularly in salsa and guacamole and as a garnish, and in salads in Russia and other CIS countries. Chopped coriander leaves are a garnish on Indian dishes such as dal. The dry fruits are known as coriander or coriandi seeds. In India they are called dhania. The word “coriander” in food preparation may refer solely to these seeds (as a spice), rather than to the plant. The seeds have a lemony citrus flavour when crushed, due to terpenes linalool and pinene.
[14] Which of the following enzymes aids in coagulation of blood?
A.
Tryptase
B.
Pepsin
C.
Rennin
D.
Amylase
Ans:
Rennin
Explanation :
Amylase converts starch and glycogen into simple sugars. Pepsin is a digestive enzyme. Rennin, the active part of prorennin helps in coagulation of blood.
[15] Bio - diesel is mostly produced by -
A.
Myrtaceae
B.
Malvaceae
C.
Liliaceae
D.
Euphorbiaceae
Ans:
Euphorbiaceae
Explanation :
Bio-diesel is mostly produced by Jatropha which is a genus of flowering plants in the spurge family, Euphorbiaceae.
[16] Mushroom cultivation is not useful in -
A.
Biogas production
B.
Biological control of crop diseases
C.
Recycling of agricultural wastes
D.
Preventing cancer
Ans:
Biological control of crop diseases
Explanation :
Some of the benefits of Mushroom cultivation are: (1) it has been found to coincide with decrease of incidents of breast cancer; (2) Spent residues such as those obtained after cultivation of edible mushrooms could be a better source of bio- logically pretreated substrates for biogas production; and (3) Mushrooms can be grown on virtually all types of available wastes; and (4) agricultural waste recycling can be achieved through controlled cultivation of mushrooms.
[17] The Drone in honey-bee are -
A.
Fertile male
B.
Fertile female
C.
Sterile male
D.
Sterile female
Ans:
Fertile male
Explanation :
Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ).
[18] Blood clotting will not occur in the absence of -
A.
Iron
B.
Calcium
C.
Phosphorus
D.
None of the above
Ans:
Calcium
Explanation :
Calcium works together with vitamin K and a protein called fibrinogen in the clotting cascade.
[19] 'Antibodies', which protect our body from infections, are which type of compounds?
A.
Carbohydrates
B.
Fats
C.
Proteins
D.
Vitamins
Ans:
Proteins
Explanation :
Antibodies are large Y-shaped proteins that are produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as bacteria and viruses.
[20] Which one of the following is called the 'digestive bag' in the cell?
A.
Golgi body
B.
Mitochondrion
C.
Ribosome
D.
Lysosome
Ans:
Lysosome
Explanation :
Lysosomes are known as digestive bag because it digest every foreign material as well as worn out cell organelles. They contain powerful digestive enzymes which are capable of breaking down all organic materials.
[21] Osteocytes are found in -
A.
Bone
B.
Blood
C.
Cartilage
D.
Lymph
Ans:
Bone
Explanation :
An osteocyte, a star shaped cell, is the most commonly found cell in mature bone, and can live as long as the organism itself. Osteocytes are networked to each other via long cytoplasmic extensions that occupy tiny canals called canaliculi, which are used for exchange of nutrients and waste through gap junctions. The space that an osteocyte occupies is called a lacuna.
[22] Which of the following is known as the graveyard of RBC?
A.
Liver
B.
Spleen
C.
Brain
D.
Heart
Ans:
Spleen
Explanation :
Red Blood Cells (RBC) take their origin in the bone marrow. The liver also produces RBC, but only during infancy. The average life span of RBC is about 100 - 120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, bone marrow is commonly called the cradle of RBC' and spleen is commonly called the 'graveyard of RBC'.
[23] The largest mixed gland of human body is -
A.
Thymus
B.
Liver
C.
Pancreas
D.
Spleen
Ans:
Pancreas
Explanation :
Pancreas is a mixed gland having both endocrine and exocrine functions. The exocrine portion secretes digestive enzymes into the duodenum via the pancreatic duct. The endocrine portion secretes two hormones, insulin and glucagon, into the blood.
[24] Which acid is present in the stomach of humans?
A.
sulphuric acid
B.
hydrochloric acid
C.
nitric acid
D.
citric acid
Ans:
hydrochloric acid
Explanation :
The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria.
[25] Study of Crop production is –
A.
Entology
B.
Ecology
C.
Botany
D.
Agronomy
Ans:
Agronomy
Explanation :
Agronomy is a branch of agricultural science that deals with the study of crops and the soils in which they grow. Agronomists work to develop methods that will improve the use of soil and increase the production of food and fiber crops.
Explanation :
Taxonomy is the academic discipline of defining groups of biological organisms on the basis of shared characteristics and giving names to those groups. Each group is given a rank and groups of a given rank can be aggregated to form a super group of higher rank and thus create a hierarchical classification.
[2] The outer skin most of the crustaceans are made up of a carbohydrate. This carbohydrate is -
A.
cellulose
B.
galactose
C.
chitin
D.
starch
Ans:
chitin
Explanation :
All crustaceans have a body covered with a protective shell composed of a horny substance called chiton. The outer skeleton is not continuous but made up of divided sections called somites.
[3] A molecule in plants comparable to haemoglobin in animals is -
A.
Cytochrome
B.
Cellulose
C.
Chlorophyll
D.
Carotene
Ans:
Chlorophyll
Explanation :
Hemoglobin is the, iron-containing oxygen-transport met alloprotein in the red blood cells of all vertebrates. Similarly, Cytochromes are, in general, membrane-bound hemeproteins containing helm, groups and are primarily responsible for the generation of ATP via electron transport.
[4] An Antigen is -
A.
the result of Antibody
B.
the opposite of Antibody
C.
the stimulus for Antibody formation
D.
the residue of an Antibody
Ans:
the stimulus for Antibody formation
Explanation :
Antigens are defined as substances recognized by the body as foreign, causing the body to produce an antibody to react specifically with it. Antibodies are proteins produced by lymphocytes as a result of stimulation by an antigen which can then interact specifically with that particular antigen.
[5] Blood does not coagulate inside the body due to the presence of -
A.
Plasma
B.
Haemoglobin
C.
Heparin
D.
Fibrin
Ans:
Heparin
Explanation :
Heparin is a naturally-occurring anticoagulant produced by basophils and mast cells. Heparin acts as an anticoagulant, preventing the formation of clots and extension of existing clots within the blood. Heparin is present in the walls of blood vessels where it doesn't allow blood to clot.
[6] Leech is an ectoparasite on cattle, which is -
A.
Carnivorous
B.
Omnivorous
C.
Sangu1omus
D.
Herbivorous
Ans:
Herbivorous
Explanation :
A herbivore is an organism anatomically and physiologically adapted to plant material, for example foliage, as the main component of its diet. Cattle are herbivorous animals.
[7] Blood pressure may be increased by the excessive secretion of -
A.
Thyroxine
B.
Testosterone
C.
Estradiol
D.
Estrol
Ans:
Thyroxine
Explanation :
With its excess secretion, also known as hyper secretion, thyroxin (T4) causes an increased heart rate, high blood pressure, possible palpitations, and could lead to heart failure. It is related to hyperthyroidism.
[8] exhaled from the polluted atmosphere is often filtered out during the process of -
A.
Coughing
B.
Sneezing
C.
A and B
D.
Urination
Ans:
Sneezing
Explanation :
PM-10 is a particulate matter having an aerodynamic diameter of less than 10 gym. Particles larger than 10 microns tend to be filtered out in the nose and therefore do not enter the respiratory tract. 926.
[9] Which of the following organelles are called the Protein Factories of the cell?
A.
Chloroplasts
B.
Lysosomes
C.
Mitochondria
D.
Ribosomes
Ans:
Ribosomes
Explanation :
The ribosome works as the protein factory in every living cell. It gathers amino acids and assembles them into protein chains to make almost anything the cell needs.
[10] Which of the following structures present in mammalian skin directly helps in keeping the body warm?
A.
Pigmented cells
B.
Sweat glands
C.
Lymph vessels
D.
Blood capillaries
Ans:
Lymph vessels
Explanation :
The lymphatic system consists of a network of specialized lymphatic vessels and various tissues and organs throughout the body that contain lymphocytes (White Blood Cells) and other cells that help the body fight infection and disease. The lymphatic vessels are similar to veins but have thinner walls. Some of these vessels are very close to the skin surface and can be found near veins; others are just under the skin and in the deeper fatty tissues near the muscles and can be found near arteries.
[11] Crude oil is sometimes termed sweet because it is -
A.
sweet in taste due to dissolved sugars
B.
mildly sweet due to low sulphur content
C.
less acidic
D.
less alkaline
Ans:
mildly sweet due to low sulphur content
Explanation :
Petroleum containing higher levels of sulfur is called sour crude oil. Sweet crude oil contains small amounts of hydrogen sulfide and carbon dioxide. The term "sweet" originates from the fact that a low level of sulfur provides the oil with a relatively sweet taste and pleasant smell, compared to sulfurous oil.
[12] Master copy of genetic information is -
A.
DNA
B.
Nucleus
C.
r-RNA
D.
m-RNA
Ans:
DNA
Explanation :
As DNA contains all the hereditary information, is called master copy of genetic information. It replicates its carbon copies when new master copies are required. It forms working copies in the form of mRNAS.
[13] In coriander, the useful parts are -
A.
roots & leaves
B.
leaves & flowers
C.
leaves & dried fruits
D.
flowers & dried fruits
Ans:
leaves & dried fruits
Explanation :
Coriander (Coriandrum sativum), also known as cilantro, Chinese parsley or dhania, is an annual herb in the family Apiaceae. All parts of the plant are edible, but the fresh leaves and the dried seeds are the parts most traditionally used in cooking. The fresh leaves are an ingredient in many South Asian foods (such as chutneys and salads), in Chinese dishes, in Mexican cooking, particularly in salsa and guacamole and as a garnish, and in salads in Russia and other CIS countries. Chopped coriander leaves are a garnish on Indian dishes such as dal. The dry fruits are known as coriander or coriandi seeds. In India they are called dhania. The word “coriander” in food preparation may refer solely to these seeds (as a spice), rather than to the plant. The seeds have a lemony citrus flavour when crushed, due to terpenes linalool and pinene.
[14] Which of the following enzymes aids in coagulation of blood?
A.
Tryptase
B.
Pepsin
C.
Rennin
D.
Amylase
Ans:
Rennin
Explanation :
Amylase converts starch and glycogen into simple sugars. Pepsin is a digestive enzyme. Rennin, the active part of prorennin helps in coagulation of blood.
[15] Bio - diesel is mostly produced by -
A.
Myrtaceae
B.
Malvaceae
C.
Liliaceae
D.
Euphorbiaceae
Ans:
Euphorbiaceae
Explanation :
Bio-diesel is mostly produced by Jatropha which is a genus of flowering plants in the spurge family, Euphorbiaceae.
[16] Mushroom cultivation is not useful in -
A.
Biogas production
B.
Biological control of crop diseases
C.
Recycling of agricultural wastes
D.
Preventing cancer
Ans:
Biological control of crop diseases
Explanation :
Some of the benefits of Mushroom cultivation are: (1) it has been found to coincide with decrease of incidents of breast cancer; (2) Spent residues such as those obtained after cultivation of edible mushrooms could be a better source of bio- logically pretreated substrates for biogas production; and (3) Mushrooms can be grown on virtually all types of available wastes; and (4) agricultural waste recycling can be achieved through controlled cultivation of mushrooms.
[17] The Drone in honey-bee are -
A.
Fertile male
B.
Fertile female
C.
Sterile male
D.
Sterile female
Ans:
Fertile male
Explanation :
Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ).
[18] Blood clotting will not occur in the absence of -
A.
Iron
B.
Calcium
C.
Phosphorus
D.
None of the above
Ans:
Calcium
Explanation :
Calcium works together with vitamin K and a protein called fibrinogen in the clotting cascade.
[19] 'Antibodies', which protect our body from infections, are which type of compounds?
A.
Carbohydrates
B.
Fats
C.
Proteins
D.
Vitamins
Ans:
Proteins
Explanation :
Antibodies are large Y-shaped proteins that are produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as bacteria and viruses.
[20] Which one of the following is called the 'digestive bag' in the cell?
A.
Golgi body
B.
Mitochondrion
C.
Ribosome
D.
Lysosome
Ans:
Lysosome
Explanation :
Lysosomes are known as digestive bag because it digest every foreign material as well as worn out cell organelles. They contain powerful digestive enzymes which are capable of breaking down all organic materials.
[21] Osteocytes are found in -
A.
Bone
B.
Blood
C.
Cartilage
D.
Lymph
Ans:
Bone
Explanation :
An osteocyte, a star shaped cell, is the most commonly found cell in mature bone, and can live as long as the organism itself. Osteocytes are networked to each other via long cytoplasmic extensions that occupy tiny canals called canaliculi, which are used for exchange of nutrients and waste through gap junctions. The space that an osteocyte occupies is called a lacuna.
[22] Which of the following is known as the graveyard of RBC?
A.
Liver
B.
Spleen
C.
Brain
D.
Heart
Ans:
Spleen
Explanation :
Red Blood Cells (RBC) take their origin in the bone marrow. The liver also produces RBC, but only during infancy. The average life span of RBC is about 100 - 120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, bone marrow is commonly called the cradle of RBC' and spleen is commonly called the 'graveyard of RBC'.
[23] The largest mixed gland of human body is -
A.
Thymus
B.
Liver
C.
Pancreas
D.
Spleen
Ans:
Pancreas
Explanation :
Pancreas is a mixed gland having both endocrine and exocrine functions. The exocrine portion secretes digestive enzymes into the duodenum via the pancreatic duct. The endocrine portion secretes two hormones, insulin and glucagon, into the blood.
[24] Which acid is present in the stomach of humans?
A.
sulphuric acid
B.
hydrochloric acid
C.
nitric acid
D.
citric acid
Ans:
hydrochloric acid
Explanation :
The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria.
[25] Study of Crop production is –
A.
Entology
B.
Ecology
C.
Botany
D.
Agronomy
Ans:
Agronomy
Explanation :
Agronomy is a branch of agricultural science that deals with the study of crops and the soils in which they grow. Agronomists work to develop methods that will improve the use of soil and increase the production of food and fiber crops.
Explanation :
Hemoglobin is the, iron-containing oxygen-transport met alloprotein in the red blood cells of all vertebrates. Similarly, Cytochromes are, in general, membrane-bound hemeproteins containing helm, groups and are primarily responsible for the generation of ATP via electron transport.
[4] An Antigen is -
A.
the result of Antibody
B.
the opposite of Antibody
C.
the stimulus for Antibody formation
D.
the residue of an Antibody
Ans:
the stimulus for Antibody formation
Explanation :
Antigens are defined as substances recognized by the body as foreign, causing the body to produce an antibody to react specifically with it. Antibodies are proteins produced by lymphocytes as a result of stimulation by an antigen which can then interact specifically with that particular antigen.
[5] Blood does not coagulate inside the body due to the presence of -
A.
Plasma
B.
Haemoglobin
C.
Heparin
D.
Fibrin
Ans:
Heparin
Explanation :
Heparin is a naturally-occurring anticoagulant produced by basophils and mast cells. Heparin acts as an anticoagulant, preventing the formation of clots and extension of existing clots within the blood. Heparin is present in the walls of blood vessels where it doesn't allow blood to clot.
[6] Leech is an ectoparasite on cattle, which is -
A.
Carnivorous
B.
Omnivorous
C.
Sangu1omus
D.
Herbivorous
Ans:
Herbivorous
Explanation :
A herbivore is an organism anatomically and physiologically adapted to plant material, for example foliage, as the main component of its diet. Cattle are herbivorous animals.
[7] Blood pressure may be increased by the excessive secretion of -
A.
Thyroxine
B.
Testosterone
C.
Estradiol
D.
Estrol
Ans:
Thyroxine
Explanation :
With its excess secretion, also known as hyper secretion, thyroxin (T4) causes an increased heart rate, high blood pressure, possible palpitations, and could lead to heart failure. It is related to hyperthyroidism.
[8] exhaled from the polluted atmosphere is often filtered out during the process of -
A.
Coughing
B.
Sneezing
C.
A and B
D.
Urination
Ans:
Sneezing
Explanation :
PM-10 is a particulate matter having an aerodynamic diameter of less than 10 gym. Particles larger than 10 microns tend to be filtered out in the nose and therefore do not enter the respiratory tract. 926.
[9] Which of the following organelles are called the Protein Factories of the cell?
A.
Chloroplasts
B.
Lysosomes
C.
Mitochondria
D.
Ribosomes
Ans:
Ribosomes
Explanation :
The ribosome works as the protein factory in every living cell. It gathers amino acids and assembles them into protein chains to make almost anything the cell needs.
[10] Which of the following structures present in mammalian skin directly helps in keeping the body warm?
A.
Pigmented cells
B.
Sweat glands
C.
Lymph vessels
D.
Blood capillaries
Ans:
Lymph vessels
Explanation :
The lymphatic system consists of a network of specialized lymphatic vessels and various tissues and organs throughout the body that contain lymphocytes (White Blood Cells) and other cells that help the body fight infection and disease. The lymphatic vessels are similar to veins but have thinner walls. Some of these vessels are very close to the skin surface and can be found near veins; others are just under the skin and in the deeper fatty tissues near the muscles and can be found near arteries.
[11] Crude oil is sometimes termed sweet because it is -
A.
sweet in taste due to dissolved sugars
B.
mildly sweet due to low sulphur content
C.
less acidic
D.
less alkaline
Ans:
mildly sweet due to low sulphur content
Explanation :
Petroleum containing higher levels of sulfur is called sour crude oil. Sweet crude oil contains small amounts of hydrogen sulfide and carbon dioxide. The term "sweet" originates from the fact that a low level of sulfur provides the oil with a relatively sweet taste and pleasant smell, compared to sulfurous oil.
[12] Master copy of genetic information is -
A.
DNA
B.
Nucleus
C.
r-RNA
D.
m-RNA
Ans:
DNA
Explanation :
As DNA contains all the hereditary information, is called master copy of genetic information. It replicates its carbon copies when new master copies are required. It forms working copies in the form of mRNAS.
[13] In coriander, the useful parts are -
A.
roots & leaves
B.
leaves & flowers
C.
leaves & dried fruits
D.
flowers & dried fruits
Ans:
leaves & dried fruits
Explanation :
Coriander (Coriandrum sativum), also known as cilantro, Chinese parsley or dhania, is an annual herb in the family Apiaceae. All parts of the plant are edible, but the fresh leaves and the dried seeds are the parts most traditionally used in cooking. The fresh leaves are an ingredient in many South Asian foods (such as chutneys and salads), in Chinese dishes, in Mexican cooking, particularly in salsa and guacamole and as a garnish, and in salads in Russia and other CIS countries. Chopped coriander leaves are a garnish on Indian dishes such as dal. The dry fruits are known as coriander or coriandi seeds. In India they are called dhania. The word “coriander” in food preparation may refer solely to these seeds (as a spice), rather than to the plant. The seeds have a lemony citrus flavour when crushed, due to terpenes linalool and pinene.
[14] Which of the following enzymes aids in coagulation of blood?
A.
Tryptase
B.
Pepsin
C.
Rennin
D.
Amylase
Ans:
Rennin
Explanation :
Amylase converts starch and glycogen into simple sugars. Pepsin is a digestive enzyme. Rennin, the active part of prorennin helps in coagulation of blood.
[15] Bio - diesel is mostly produced by -
A.
Myrtaceae
B.
Malvaceae
C.
Liliaceae
D.
Euphorbiaceae
Ans:
Euphorbiaceae
Explanation :
Bio-diesel is mostly produced by Jatropha which is a genus of flowering plants in the spurge family, Euphorbiaceae.
[16] Mushroom cultivation is not useful in -
A.
Biogas production
B.
Biological control of crop diseases
C.
Recycling of agricultural wastes
D.
Preventing cancer
Ans:
Biological control of crop diseases
Explanation :
Some of the benefits of Mushroom cultivation are: (1) it has been found to coincide with decrease of incidents of breast cancer; (2) Spent residues such as those obtained after cultivation of edible mushrooms could be a better source of bio- logically pretreated substrates for biogas production; and (3) Mushrooms can be grown on virtually all types of available wastes; and (4) agricultural waste recycling can be achieved through controlled cultivation of mushrooms.
[17] The Drone in honey-bee are -
A.
Fertile male
B.
Fertile female
C.
Sterile male
D.
Sterile female
Ans:
Fertile male
Explanation :
Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ).
[18] Blood clotting will not occur in the absence of -
A.
Iron
B.
Calcium
C.
Phosphorus
D.
None of the above
Ans:
Calcium
Explanation :
Calcium works together with vitamin K and a protein called fibrinogen in the clotting cascade.
[19] 'Antibodies', which protect our body from infections, are which type of compounds?
A.
Carbohydrates
B.
Fats
C.
Proteins
D.
Vitamins
Ans:
Proteins
Explanation :
Antibodies are large Y-shaped proteins that are produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as bacteria and viruses.
[20] Which one of the following is called the 'digestive bag' in the cell?
A.
Golgi body
B.
Mitochondrion
C.
Ribosome
D.
Lysosome
Ans:
Lysosome
Explanation :
Lysosomes are known as digestive bag because it digest every foreign material as well as worn out cell organelles. They contain powerful digestive enzymes which are capable of breaking down all organic materials.
[21] Osteocytes are found in -
A.
Bone
B.
Blood
C.
Cartilage
D.
Lymph
Ans:
Bone
Explanation :
An osteocyte, a star shaped cell, is the most commonly found cell in mature bone, and can live as long as the organism itself. Osteocytes are networked to each other via long cytoplasmic extensions that occupy tiny canals called canaliculi, which are used for exchange of nutrients and waste through gap junctions. The space that an osteocyte occupies is called a lacuna.
[22] Which of the following is known as the graveyard of RBC?
A.
Liver
B.
Spleen
C.
Brain
D.
Heart
Ans:
Spleen
Explanation :
Red Blood Cells (RBC) take their origin in the bone marrow. The liver also produces RBC, but only during infancy. The average life span of RBC is about 100 - 120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, bone marrow is commonly called the cradle of RBC' and spleen is commonly called the 'graveyard of RBC'.
[23] The largest mixed gland of human body is -
A.
Thymus
B.
Liver
C.
Pancreas
D.
Spleen
Ans:
Pancreas
Explanation :
Pancreas is a mixed gland having both endocrine and exocrine functions. The exocrine portion secretes digestive enzymes into the duodenum via the pancreatic duct. The endocrine portion secretes two hormones, insulin and glucagon, into the blood.
[24] Which acid is present in the stomach of humans?
A.
sulphuric acid
B.
hydrochloric acid
C.
nitric acid
D.
citric acid
Ans:
hydrochloric acid
Explanation :
The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria.
[25] Study of Crop production is –
A.
Entology
B.
Ecology
C.
Botany
D.
Agronomy
Ans:
Agronomy
Explanation :
Agronomy is a branch of agricultural science that deals with the study of crops and the soils in which they grow. Agronomists work to develop methods that will improve the use of soil and increase the production of food and fiber crops.
Explanation :
Heparin is a naturally-occurring anticoagulant produced by basophils and mast cells. Heparin acts as an anticoagulant, preventing the formation of clots and extension of existing clots within the blood. Heparin is present in the walls of blood vessels where it doesn't allow blood to clot.
[6] Leech is an ectoparasite on cattle, which is -
A.
Carnivorous
B.
Omnivorous
C.
Sangu1omus
D.
Herbivorous
Ans:
Herbivorous
Explanation :
A herbivore is an organism anatomically and physiologically adapted to plant material, for example foliage, as the main component of its diet. Cattle are herbivorous animals.
[7] Blood pressure may be increased by the excessive secretion of -
A.
Thyroxine
B.
Testosterone
C.
Estradiol
D.
Estrol
Ans:
Thyroxine
Explanation :
With its excess secretion, also known as hyper secretion, thyroxin (T4) causes an increased heart rate, high blood pressure, possible palpitations, and could lead to heart failure. It is related to hyperthyroidism.
[8] exhaled from the polluted atmosphere is often filtered out during the process of -
A.
Coughing
B.
Sneezing
C.
A and B
D.
Urination
Ans:
Sneezing
Explanation :
PM-10 is a particulate matter having an aerodynamic diameter of less than 10 gym. Particles larger than 10 microns tend to be filtered out in the nose and therefore do not enter the respiratory tract. 926.
[9] Which of the following organelles are called the Protein Factories of the cell?
A.
Chloroplasts
B.
Lysosomes
C.
Mitochondria
D.
Ribosomes
Ans:
Ribosomes
Explanation :
The ribosome works as the protein factory in every living cell. It gathers amino acids and assembles them into protein chains to make almost anything the cell needs.
[10] Which of the following structures present in mammalian skin directly helps in keeping the body warm?
A.
Pigmented cells
B.
Sweat glands
C.
Lymph vessels
D.
Blood capillaries
Ans:
Lymph vessels
Explanation :
The lymphatic system consists of a network of specialized lymphatic vessels and various tissues and organs throughout the body that contain lymphocytes (White Blood Cells) and other cells that help the body fight infection and disease. The lymphatic vessels are similar to veins but have thinner walls. Some of these vessels are very close to the skin surface and can be found near veins; others are just under the skin and in the deeper fatty tissues near the muscles and can be found near arteries.
[11] Crude oil is sometimes termed sweet because it is -
A.
sweet in taste due to dissolved sugars
B.
mildly sweet due to low sulphur content
C.
less acidic
D.
less alkaline
Ans:
mildly sweet due to low sulphur content
Explanation :
Petroleum containing higher levels of sulfur is called sour crude oil. Sweet crude oil contains small amounts of hydrogen sulfide and carbon dioxide. The term "sweet" originates from the fact that a low level of sulfur provides the oil with a relatively sweet taste and pleasant smell, compared to sulfurous oil.
[12] Master copy of genetic information is -
A.
DNA
B.
Nucleus
C.
r-RNA
D.
m-RNA
Ans:
DNA
Explanation :
As DNA contains all the hereditary information, is called master copy of genetic information. It replicates its carbon copies when new master copies are required. It forms working copies in the form of mRNAS.
[13] In coriander, the useful parts are -
A.
roots & leaves
B.
leaves & flowers
C.
leaves & dried fruits
D.
flowers & dried fruits
Ans:
leaves & dried fruits
Explanation :
Coriander (Coriandrum sativum), also known as cilantro, Chinese parsley or dhania, is an annual herb in the family Apiaceae. All parts of the plant are edible, but the fresh leaves and the dried seeds are the parts most traditionally used in cooking. The fresh leaves are an ingredient in many South Asian foods (such as chutneys and salads), in Chinese dishes, in Mexican cooking, particularly in salsa and guacamole and as a garnish, and in salads in Russia and other CIS countries. Chopped coriander leaves are a garnish on Indian dishes such as dal. The dry fruits are known as coriander or coriandi seeds. In India they are called dhania. The word “coriander” in food preparation may refer solely to these seeds (as a spice), rather than to the plant. The seeds have a lemony citrus flavour when crushed, due to terpenes linalool and pinene.
[14] Which of the following enzymes aids in coagulation of blood?
A.
Tryptase
B.
Pepsin
C.
Rennin
D.
Amylase
Ans:
Rennin
Explanation :
Amylase converts starch and glycogen into simple sugars. Pepsin is a digestive enzyme. Rennin, the active part of prorennin helps in coagulation of blood.
[15] Bio - diesel is mostly produced by -
A.
Myrtaceae
B.
Malvaceae
C.
Liliaceae
D.
Euphorbiaceae
Ans:
Euphorbiaceae
Explanation :
Bio-diesel is mostly produced by Jatropha which is a genus of flowering plants in the spurge family, Euphorbiaceae.
[16] Mushroom cultivation is not useful in -
A.
Biogas production
B.
Biological control of crop diseases
C.
Recycling of agricultural wastes
D.
Preventing cancer
Ans:
Biological control of crop diseases
Explanation :
Some of the benefits of Mushroom cultivation are: (1) it has been found to coincide with decrease of incidents of breast cancer; (2) Spent residues such as those obtained after cultivation of edible mushrooms could be a better source of bio- logically pretreated substrates for biogas production; and (3) Mushrooms can be grown on virtually all types of available wastes; and (4) agricultural waste recycling can be achieved through controlled cultivation of mushrooms.
[17] The Drone in honey-bee are -
A.
Fertile male
B.
Fertile female
C.
Sterile male
D.
Sterile female
Ans:
Fertile male
Explanation :
Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ).
[18] Blood clotting will not occur in the absence of -
A.
Iron
B.
Calcium
C.
Phosphorus
D.
None of the above
Ans:
Calcium
Explanation :
Calcium works together with vitamin K and a protein called fibrinogen in the clotting cascade.
[19] 'Antibodies', which protect our body from infections, are which type of compounds?
A.
Carbohydrates
B.
Fats
C.
Proteins
D.
Vitamins
Ans:
Proteins
Explanation :
Antibodies are large Y-shaped proteins that are produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as bacteria and viruses.
[20] Which one of the following is called the 'digestive bag' in the cell?
A.
Golgi body
B.
Mitochondrion
C.
Ribosome
D.
Lysosome
Ans:
Lysosome
Explanation :
Lysosomes are known as digestive bag because it digest every foreign material as well as worn out cell organelles. They contain powerful digestive enzymes which are capable of breaking down all organic materials.
[21] Osteocytes are found in -
A.
Bone
B.
Blood
C.
Cartilage
D.
Lymph
Ans:
Bone
Explanation :
An osteocyte, a star shaped cell, is the most commonly found cell in mature bone, and can live as long as the organism itself. Osteocytes are networked to each other via long cytoplasmic extensions that occupy tiny canals called canaliculi, which are used for exchange of nutrients and waste through gap junctions. The space that an osteocyte occupies is called a lacuna.
[22] Which of the following is known as the graveyard of RBC?
A.
Liver
B.
Spleen
C.
Brain
D.
Heart
Ans:
Spleen
Explanation :
Red Blood Cells (RBC) take their origin in the bone marrow. The liver also produces RBC, but only during infancy. The average life span of RBC is about 100 - 120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, bone marrow is commonly called the cradle of RBC' and spleen is commonly called the 'graveyard of RBC'.
[23] The largest mixed gland of human body is -
A.
Thymus
B.
Liver
C.
Pancreas
D.
Spleen
Ans:
Pancreas
Explanation :
Pancreas is a mixed gland having both endocrine and exocrine functions. The exocrine portion secretes digestive enzymes into the duodenum via the pancreatic duct. The endocrine portion secretes two hormones, insulin and glucagon, into the blood.
[24] Which acid is present in the stomach of humans?
A.
sulphuric acid
B.
hydrochloric acid
C.
nitric acid
D.
citric acid
Ans:
hydrochloric acid
Explanation :
The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria.
[25] Study of Crop production is –
A.
Entology
B.
Ecology
C.
Botany
D.
Agronomy
Ans:
Agronomy
Explanation :
Agronomy is a branch of agricultural science that deals with the study of crops and the soils in which they grow. Agronomists work to develop methods that will improve the use of soil and increase the production of food and fiber crops.
Explanation :
With its excess secretion, also known as hyper secretion, thyroxin (T4) causes an increased heart rate, high blood pressure, possible palpitations, and could lead to heart failure. It is related to hyperthyroidism.
[8] exhaled from the polluted atmosphere is often filtered out during the process of -
A.
Coughing
B.
Sneezing
C.
A and B
D.
Urination
Ans:
Sneezing
Explanation :
PM-10 is a particulate matter having an aerodynamic diameter of less than 10 gym. Particles larger than 10 microns tend to be filtered out in the nose and therefore do not enter the respiratory tract. 926.
[9] Which of the following organelles are called the Protein Factories of the cell?
A.
Chloroplasts
B.
Lysosomes
C.
Mitochondria
D.
Ribosomes
Ans:
Ribosomes
Explanation :
The ribosome works as the protein factory in every living cell. It gathers amino acids and assembles them into protein chains to make almost anything the cell needs.
[10] Which of the following structures present in mammalian skin directly helps in keeping the body warm?
A.
Pigmented cells
B.
Sweat glands
C.
Lymph vessels
D.
Blood capillaries
Ans:
Lymph vessels
Explanation :
The lymphatic system consists of a network of specialized lymphatic vessels and various tissues and organs throughout the body that contain lymphocytes (White Blood Cells) and other cells that help the body fight infection and disease. The lymphatic vessels are similar to veins but have thinner walls. Some of these vessels are very close to the skin surface and can be found near veins; others are just under the skin and in the deeper fatty tissues near the muscles and can be found near arteries.
[11] Crude oil is sometimes termed sweet because it is -
A.
sweet in taste due to dissolved sugars
B.
mildly sweet due to low sulphur content
C.
less acidic
D.
less alkaline
Ans:
mildly sweet due to low sulphur content
Explanation :
Petroleum containing higher levels of sulfur is called sour crude oil. Sweet crude oil contains small amounts of hydrogen sulfide and carbon dioxide. The term "sweet" originates from the fact that a low level of sulfur provides the oil with a relatively sweet taste and pleasant smell, compared to sulfurous oil.
[12] Master copy of genetic information is -
A.
DNA
B.
Nucleus
C.
r-RNA
D.
m-RNA
Ans:
DNA
Explanation :
As DNA contains all the hereditary information, is called master copy of genetic information. It replicates its carbon copies when new master copies are required. It forms working copies in the form of mRNAS.
[13] In coriander, the useful parts are -
A.
roots & leaves
B.
leaves & flowers
C.
leaves & dried fruits
D.
flowers & dried fruits
Ans:
leaves & dried fruits
Explanation :
Coriander (Coriandrum sativum), also known as cilantro, Chinese parsley or dhania, is an annual herb in the family Apiaceae. All parts of the plant are edible, but the fresh leaves and the dried seeds are the parts most traditionally used in cooking. The fresh leaves are an ingredient in many South Asian foods (such as chutneys and salads), in Chinese dishes, in Mexican cooking, particularly in salsa and guacamole and as a garnish, and in salads in Russia and other CIS countries. Chopped coriander leaves are a garnish on Indian dishes such as dal. The dry fruits are known as coriander or coriandi seeds. In India they are called dhania. The word “coriander” in food preparation may refer solely to these seeds (as a spice), rather than to the plant. The seeds have a lemony citrus flavour when crushed, due to terpenes linalool and pinene.
[14] Which of the following enzymes aids in coagulation of blood?
A.
Tryptase
B.
Pepsin
C.
Rennin
D.
Amylase
Ans:
Rennin
Explanation :
Amylase converts starch and glycogen into simple sugars. Pepsin is a digestive enzyme. Rennin, the active part of prorennin helps in coagulation of blood.
[15] Bio - diesel is mostly produced by -
A.
Myrtaceae
B.
Malvaceae
C.
Liliaceae
D.
Euphorbiaceae
Ans:
Euphorbiaceae
Explanation :
Bio-diesel is mostly produced by Jatropha which is a genus of flowering plants in the spurge family, Euphorbiaceae.
[16] Mushroom cultivation is not useful in -
A.
Biogas production
B.
Biological control of crop diseases
C.
Recycling of agricultural wastes
D.
Preventing cancer
Ans:
Biological control of crop diseases
Explanation :
Some of the benefits of Mushroom cultivation are: (1) it has been found to coincide with decrease of incidents of breast cancer; (2) Spent residues such as those obtained after cultivation of edible mushrooms could be a better source of bio- logically pretreated substrates for biogas production; and (3) Mushrooms can be grown on virtually all types of available wastes; and (4) agricultural waste recycling can be achieved through controlled cultivation of mushrooms.
[17] The Drone in honey-bee are -
A.
Fertile male
B.
Fertile female
C.
Sterile male
D.
Sterile female
Ans:
Fertile male
Explanation :
Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ).
[18] Blood clotting will not occur in the absence of -
A.
Iron
B.
Calcium
C.
Phosphorus
D.
None of the above
Ans:
Calcium
Explanation :
Calcium works together with vitamin K and a protein called fibrinogen in the clotting cascade.
[19] 'Antibodies', which protect our body from infections, are which type of compounds?
A.
Carbohydrates
B.
Fats
C.
Proteins
D.
Vitamins
Ans:
Proteins
Explanation :
Antibodies are large Y-shaped proteins that are produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as bacteria and viruses.
[20] Which one of the following is called the 'digestive bag' in the cell?
A.
Golgi body
B.
Mitochondrion
C.
Ribosome
D.
Lysosome
Ans:
Lysosome
Explanation :
Lysosomes are known as digestive bag because it digest every foreign material as well as worn out cell organelles. They contain powerful digestive enzymes which are capable of breaking down all organic materials.
[21] Osteocytes are found in -
A.
Bone
B.
Blood
C.
Cartilage
D.
Lymph
Ans:
Bone
Explanation :
An osteocyte, a star shaped cell, is the most commonly found cell in mature bone, and can live as long as the organism itself. Osteocytes are networked to each other via long cytoplasmic extensions that occupy tiny canals called canaliculi, which are used for exchange of nutrients and waste through gap junctions. The space that an osteocyte occupies is called a lacuna.
[22] Which of the following is known as the graveyard of RBC?
A.
Liver
B.
Spleen
C.
Brain
D.
Heart
Ans:
Spleen
Explanation :
Red Blood Cells (RBC) take their origin in the bone marrow. The liver also produces RBC, but only during infancy. The average life span of RBC is about 100 - 120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, bone marrow is commonly called the cradle of RBC' and spleen is commonly called the 'graveyard of RBC'.
[23] The largest mixed gland of human body is -
A.
Thymus
B.
Liver
C.
Pancreas
D.
Spleen
Ans:
Pancreas
Explanation :
Pancreas is a mixed gland having both endocrine and exocrine functions. The exocrine portion secretes digestive enzymes into the duodenum via the pancreatic duct. The endocrine portion secretes two hormones, insulin and glucagon, into the blood.
[24] Which acid is present in the stomach of humans?
A.
sulphuric acid
B.
hydrochloric acid
C.
nitric acid
D.
citric acid
Ans:
hydrochloric acid
Explanation :
The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria.
[25] Study of Crop production is –
A.
Entology
B.
Ecology
C.
Botany
D.
Agronomy
Ans:
Agronomy
Explanation :
Agronomy is a branch of agricultural science that deals with the study of crops and the soils in which they grow. Agronomists work to develop methods that will improve the use of soil and increase the production of food and fiber crops.
Explanation :
The ribosome works as the protein factory in every living cell. It gathers amino acids and assembles them into protein chains to make almost anything the cell needs.
[10] Which of the following structures present in mammalian skin directly helps in keeping the body warm?
A.
Pigmented cells
B.
Sweat glands
C.
Lymph vessels
D.
Blood capillaries
Ans:
Lymph vessels
Explanation :
The lymphatic system consists of a network of specialized lymphatic vessels and various tissues and organs throughout the body that contain lymphocytes (White Blood Cells) and other cells that help the body fight infection and disease. The lymphatic vessels are similar to veins but have thinner walls. Some of these vessels are very close to the skin surface and can be found near veins; others are just under the skin and in the deeper fatty tissues near the muscles and can be found near arteries.
[11] Crude oil is sometimes termed sweet because it is -
A.
sweet in taste due to dissolved sugars
B.
mildly sweet due to low sulphur content
C.
less acidic
D.
less alkaline
Ans:
mildly sweet due to low sulphur content
Explanation :
Petroleum containing higher levels of sulfur is called sour crude oil. Sweet crude oil contains small amounts of hydrogen sulfide and carbon dioxide. The term "sweet" originates from the fact that a low level of sulfur provides the oil with a relatively sweet taste and pleasant smell, compared to sulfurous oil.
[12] Master copy of genetic information is -
A.
DNA
B.
Nucleus
C.
r-RNA
D.
m-RNA
Ans:
DNA
Explanation :
As DNA contains all the hereditary information, is called master copy of genetic information. It replicates its carbon copies when new master copies are required. It forms working copies in the form of mRNAS.
[13] In coriander, the useful parts are -
A.
roots & leaves
B.
leaves & flowers
C.
leaves & dried fruits
D.
flowers & dried fruits
Ans:
leaves & dried fruits
Explanation :
Coriander (Coriandrum sativum), also known as cilantro, Chinese parsley or dhania, is an annual herb in the family Apiaceae. All parts of the plant are edible, but the fresh leaves and the dried seeds are the parts most traditionally used in cooking. The fresh leaves are an ingredient in many South Asian foods (such as chutneys and salads), in Chinese dishes, in Mexican cooking, particularly in salsa and guacamole and as a garnish, and in salads in Russia and other CIS countries. Chopped coriander leaves are a garnish on Indian dishes such as dal. The dry fruits are known as coriander or coriandi seeds. In India they are called dhania. The word “coriander” in food preparation may refer solely to these seeds (as a spice), rather than to the plant. The seeds have a lemony citrus flavour when crushed, due to terpenes linalool and pinene.
[14] Which of the following enzymes aids in coagulation of blood?
A.
Tryptase
B.
Pepsin
C.
Rennin
D.
Amylase
Ans:
Rennin
Explanation :
Amylase converts starch and glycogen into simple sugars. Pepsin is a digestive enzyme. Rennin, the active part of prorennin helps in coagulation of blood.
[15] Bio - diesel is mostly produced by -
A.
Myrtaceae
B.
Malvaceae
C.
Liliaceae
D.
Euphorbiaceae
Ans:
Euphorbiaceae
Explanation :
Bio-diesel is mostly produced by Jatropha which is a genus of flowering plants in the spurge family, Euphorbiaceae.
[16] Mushroom cultivation is not useful in -
A.
Biogas production
B.
Biological control of crop diseases
C.
Recycling of agricultural wastes
D.
Preventing cancer
Ans:
Biological control of crop diseases
Explanation :
Some of the benefits of Mushroom cultivation are: (1) it has been found to coincide with decrease of incidents of breast cancer; (2) Spent residues such as those obtained after cultivation of edible mushrooms could be a better source of bio- logically pretreated substrates for biogas production; and (3) Mushrooms can be grown on virtually all types of available wastes; and (4) agricultural waste recycling can be achieved through controlled cultivation of mushrooms.
[17] The Drone in honey-bee are -
A.
Fertile male
B.
Fertile female
C.
Sterile male
D.
Sterile female
Ans:
Fertile male
Explanation :
Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ).
[18] Blood clotting will not occur in the absence of -
A.
Iron
B.
Calcium
C.
Phosphorus
D.
None of the above
Ans:
Calcium
Explanation :
Calcium works together with vitamin K and a protein called fibrinogen in the clotting cascade.
[19] 'Antibodies', which protect our body from infections, are which type of compounds?
A.
Carbohydrates
B.
Fats
C.
Proteins
D.
Vitamins
Ans:
Proteins
Explanation :
Antibodies are large Y-shaped proteins that are produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as bacteria and viruses.
[20] Which one of the following is called the 'digestive bag' in the cell?
A.
Golgi body
B.
Mitochondrion
C.
Ribosome
D.
Lysosome
Ans:
Lysosome
Explanation :
Lysosomes are known as digestive bag because it digest every foreign material as well as worn out cell organelles. They contain powerful digestive enzymes which are capable of breaking down all organic materials.
[21] Osteocytes are found in -
A.
Bone
B.
Blood
C.
Cartilage
D.
Lymph
Ans:
Bone
Explanation :
An osteocyte, a star shaped cell, is the most commonly found cell in mature bone, and can live as long as the organism itself. Osteocytes are networked to each other via long cytoplasmic extensions that occupy tiny canals called canaliculi, which are used for exchange of nutrients and waste through gap junctions. The space that an osteocyte occupies is called a lacuna.
[22] Which of the following is known as the graveyard of RBC?
A.
Liver
B.
Spleen
C.
Brain
D.
Heart
Ans:
Spleen
Explanation :
Red Blood Cells (RBC) take their origin in the bone marrow. The liver also produces RBC, but only during infancy. The average life span of RBC is about 100 - 120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, bone marrow is commonly called the cradle of RBC' and spleen is commonly called the 'graveyard of RBC'.
[23] The largest mixed gland of human body is -
A.
Thymus
B.
Liver
C.
Pancreas
D.
Spleen
Ans:
Pancreas
Explanation :
Pancreas is a mixed gland having both endocrine and exocrine functions. The exocrine portion secretes digestive enzymes into the duodenum via the pancreatic duct. The endocrine portion secretes two hormones, insulin and glucagon, into the blood.
[24] Which acid is present in the stomach of humans?
A.
sulphuric acid
B.
hydrochloric acid
C.
nitric acid
D.
citric acid
Ans:
hydrochloric acid
Explanation :
The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria.
[25] Study of Crop production is –
A.
Entology
B.
Ecology
C.
Botany
D.
Agronomy
Ans:
Agronomy
Explanation :
Agronomy is a branch of agricultural science that deals with the study of crops and the soils in which they grow. Agronomists work to develop methods that will improve the use of soil and increase the production of food and fiber crops.
Explanation :
Petroleum containing higher levels of sulfur is called sour crude oil. Sweet crude oil contains small amounts of hydrogen sulfide and carbon dioxide. The term "sweet" originates from the fact that a low level of sulfur provides the oil with a relatively sweet taste and pleasant smell, compared to sulfurous oil.
[12] Master copy of genetic information is -
A.
DNA
B.
Nucleus
C.
r-RNA
D.
m-RNA
Ans:
DNA
Explanation :
As DNA contains all the hereditary information, is called master copy of genetic information. It replicates its carbon copies when new master copies are required. It forms working copies in the form of mRNAS.
[13] In coriander, the useful parts are -
A.
roots & leaves
B.
leaves & flowers
C.
leaves & dried fruits
D.
flowers & dried fruits
Ans:
leaves & dried fruits
Explanation :
Coriander (Coriandrum sativum), also known as cilantro, Chinese parsley or dhania, is an annual herb in the family Apiaceae. All parts of the plant are edible, but the fresh leaves and the dried seeds are the parts most traditionally used in cooking. The fresh leaves are an ingredient in many South Asian foods (such as chutneys and salads), in Chinese dishes, in Mexican cooking, particularly in salsa and guacamole and as a garnish, and in salads in Russia and other CIS countries. Chopped coriander leaves are a garnish on Indian dishes such as dal. The dry fruits are known as coriander or coriandi seeds. In India they are called dhania. The word “coriander” in food preparation may refer solely to these seeds (as a spice), rather than to the plant. The seeds have a lemony citrus flavour when crushed, due to terpenes linalool and pinene.
[14] Which of the following enzymes aids in coagulation of blood?
A.
Tryptase
B.
Pepsin
C.
Rennin
D.
Amylase
Ans:
Rennin
Explanation :
Amylase converts starch and glycogen into simple sugars. Pepsin is a digestive enzyme. Rennin, the active part of prorennin helps in coagulation of blood.
[15] Bio - diesel is mostly produced by -
A.
Myrtaceae
B.
Malvaceae
C.
Liliaceae
D.
Euphorbiaceae
Ans:
Euphorbiaceae
Explanation :
Bio-diesel is mostly produced by Jatropha which is a genus of flowering plants in the spurge family, Euphorbiaceae.
[16] Mushroom cultivation is not useful in -
A.
Biogas production
B.
Biological control of crop diseases
C.
Recycling of agricultural wastes
D.
Preventing cancer
Ans:
Biological control of crop diseases
Explanation :
Some of the benefits of Mushroom cultivation are: (1) it has been found to coincide with decrease of incidents of breast cancer; (2) Spent residues such as those obtained after cultivation of edible mushrooms could be a better source of bio- logically pretreated substrates for biogas production; and (3) Mushrooms can be grown on virtually all types of available wastes; and (4) agricultural waste recycling can be achieved through controlled cultivation of mushrooms.
[17] The Drone in honey-bee are -
A.
Fertile male
B.
Fertile female
C.
Sterile male
D.
Sterile female
Ans:
Fertile male
Explanation :
Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ).
[18] Blood clotting will not occur in the absence of -
A.
Iron
B.
Calcium
C.
Phosphorus
D.
None of the above
Ans:
Calcium
Explanation :
Calcium works together with vitamin K and a protein called fibrinogen in the clotting cascade.
[19] 'Antibodies', which protect our body from infections, are which type of compounds?
A.
Carbohydrates
B.
Fats
C.
Proteins
D.
Vitamins
Ans:
Proteins
Explanation :
Antibodies are large Y-shaped proteins that are produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as bacteria and viruses.
[20] Which one of the following is called the 'digestive bag' in the cell?
A.
Golgi body
B.
Mitochondrion
C.
Ribosome
D.
Lysosome
Ans:
Lysosome
Explanation :
Lysosomes are known as digestive bag because it digest every foreign material as well as worn out cell organelles. They contain powerful digestive enzymes which are capable of breaking down all organic materials.
[21] Osteocytes are found in -
A.
Bone
B.
Blood
C.
Cartilage
D.
Lymph
Ans:
Bone
Explanation :
An osteocyte, a star shaped cell, is the most commonly found cell in mature bone, and can live as long as the organism itself. Osteocytes are networked to each other via long cytoplasmic extensions that occupy tiny canals called canaliculi, which are used for exchange of nutrients and waste through gap junctions. The space that an osteocyte occupies is called a lacuna.
[22] Which of the following is known as the graveyard of RBC?
A.
Liver
B.
Spleen
C.
Brain
D.
Heart
Ans:
Spleen
Explanation :
Red Blood Cells (RBC) take their origin in the bone marrow. The liver also produces RBC, but only during infancy. The average life span of RBC is about 100 - 120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, bone marrow is commonly called the cradle of RBC' and spleen is commonly called the 'graveyard of RBC'.
[23] The largest mixed gland of human body is -
A.
Thymus
B.
Liver
C.
Pancreas
D.
Spleen
Ans:
Pancreas
Explanation :
Pancreas is a mixed gland having both endocrine and exocrine functions. The exocrine portion secretes digestive enzymes into the duodenum via the pancreatic duct. The endocrine portion secretes two hormones, insulin and glucagon, into the blood.
[24] Which acid is present in the stomach of humans?
A.
sulphuric acid
B.
hydrochloric acid
C.
nitric acid
D.
citric acid
Ans:
hydrochloric acid
Explanation :
The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria.
[25] Study of Crop production is –
A.
Entology
B.
Ecology
C.
Botany
D.
Agronomy
Ans:
Agronomy
Explanation :
Agronomy is a branch of agricultural science that deals with the study of crops and the soils in which they grow. Agronomists work to develop methods that will improve the use of soil and increase the production of food and fiber crops.
Explanation :
Coriander (Coriandrum sativum), also known as cilantro, Chinese parsley or dhania, is an annual herb in the family Apiaceae. All parts of the plant are edible, but the fresh leaves and the dried seeds are the parts most traditionally used in cooking. The fresh leaves are an ingredient in many South Asian foods (such as chutneys and salads), in Chinese dishes, in Mexican cooking, particularly in salsa and guacamole and as a garnish, and in salads in Russia and other CIS countries. Chopped coriander leaves are a garnish on Indian dishes such as dal. The dry fruits are known as coriander or coriandi seeds. In India they are called dhania. The word “coriander” in food preparation may refer solely to these seeds (as a spice), rather than to the plant. The seeds have a lemony citrus flavour when crushed, due to terpenes linalool and pinene.
[14] Which of the following enzymes aids in coagulation of blood?
A.
Tryptase
B.
Pepsin
C.
Rennin
D.
Amylase
Ans:
Rennin
Explanation :
Amylase converts starch and glycogen into simple sugars. Pepsin is a digestive enzyme. Rennin, the active part of prorennin helps in coagulation of blood.
[15] Bio - diesel is mostly produced by -
A.
Myrtaceae
B.
Malvaceae
C.
Liliaceae
D.
Euphorbiaceae
Ans:
Euphorbiaceae
Explanation :
Bio-diesel is mostly produced by Jatropha which is a genus of flowering plants in the spurge family, Euphorbiaceae.
[16] Mushroom cultivation is not useful in -
A.
Biogas production
B.
Biological control of crop diseases
C.
Recycling of agricultural wastes
D.
Preventing cancer
Ans:
Biological control of crop diseases
Explanation :
Some of the benefits of Mushroom cultivation are: (1) it has been found to coincide with decrease of incidents of breast cancer; (2) Spent residues such as those obtained after cultivation of edible mushrooms could be a better source of bio- logically pretreated substrates for biogas production; and (3) Mushrooms can be grown on virtually all types of available wastes; and (4) agricultural waste recycling can be achieved through controlled cultivation of mushrooms.
[17] The Drone in honey-bee are -
A.
Fertile male
B.
Fertile female
C.
Sterile male
D.
Sterile female
Ans:
Fertile male
Explanation :
Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ).
[18] Blood clotting will not occur in the absence of -
A.
Iron
B.
Calcium
C.
Phosphorus
D.
None of the above
Ans:
Calcium
Explanation :
Calcium works together with vitamin K and a protein called fibrinogen in the clotting cascade.
[19] 'Antibodies', which protect our body from infections, are which type of compounds?
A.
Carbohydrates
B.
Fats
C.
Proteins
D.
Vitamins
Ans:
Proteins
Explanation :
Antibodies are large Y-shaped proteins that are produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as bacteria and viruses.
[20] Which one of the following is called the 'digestive bag' in the cell?
A.
Golgi body
B.
Mitochondrion
C.
Ribosome
D.
Lysosome
Ans:
Lysosome
Explanation :
Lysosomes are known as digestive bag because it digest every foreign material as well as worn out cell organelles. They contain powerful digestive enzymes which are capable of breaking down all organic materials.
[21] Osteocytes are found in -
A.
Bone
B.
Blood
C.
Cartilage
D.
Lymph
Ans:
Bone
Explanation :
An osteocyte, a star shaped cell, is the most commonly found cell in mature bone, and can live as long as the organism itself. Osteocytes are networked to each other via long cytoplasmic extensions that occupy tiny canals called canaliculi, which are used for exchange of nutrients and waste through gap junctions. The space that an osteocyte occupies is called a lacuna.
[22] Which of the following is known as the graveyard of RBC?
A.
Liver
B.
Spleen
C.
Brain
D.
Heart
Ans:
Spleen
Explanation :
Red Blood Cells (RBC) take their origin in the bone marrow. The liver also produces RBC, but only during infancy. The average life span of RBC is about 100 - 120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, bone marrow is commonly called the cradle of RBC' and spleen is commonly called the 'graveyard of RBC'.
[23] The largest mixed gland of human body is -
A.
Thymus
B.
Liver
C.
Pancreas
D.
Spleen
Ans:
Pancreas
Explanation :
Pancreas is a mixed gland having both endocrine and exocrine functions. The exocrine portion secretes digestive enzymes into the duodenum via the pancreatic duct. The endocrine portion secretes two hormones, insulin and glucagon, into the blood.
[24] Which acid is present in the stomach of humans?
A.
sulphuric acid
B.
hydrochloric acid
C.
nitric acid
D.
citric acid
Ans:
hydrochloric acid
Explanation :
The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria.
[25] Study of Crop production is –
A.
Entology
B.
Ecology
C.
Botany
D.
Agronomy
Ans:
Agronomy
Explanation :
Agronomy is a branch of agricultural science that deals with the study of crops and the soils in which they grow. Agronomists work to develop methods that will improve the use of soil and increase the production of food and fiber crops.
Explanation :
Bio-diesel is mostly produced by Jatropha which is a genus of flowering plants in the spurge family, Euphorbiaceae.
[16] Mushroom cultivation is not useful in -
A.
Biogas production
B.
Biological control of crop diseases
C.
Recycling of agricultural wastes
D.
Preventing cancer
Ans:
Biological control of crop diseases
Explanation :
Some of the benefits of Mushroom cultivation are: (1) it has been found to coincide with decrease of incidents of breast cancer; (2) Spent residues such as those obtained after cultivation of edible mushrooms could be a better source of bio- logically pretreated substrates for biogas production; and (3) Mushrooms can be grown on virtually all types of available wastes; and (4) agricultural waste recycling can be achieved through controlled cultivation of mushrooms.
[17] The Drone in honey-bee are -
A.
Fertile male
B.
Fertile female
C.
Sterile male
D.
Sterile female
Ans:
Fertile male
Explanation :
Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ).
[18] Blood clotting will not occur in the absence of -
A.
Iron
B.
Calcium
C.
Phosphorus
D.
None of the above
Ans:
Calcium
Explanation :
Calcium works together with vitamin K and a protein called fibrinogen in the clotting cascade.
[19] 'Antibodies', which protect our body from infections, are which type of compounds?
A.
Carbohydrates
B.
Fats
C.
Proteins
D.
Vitamins
Ans:
Proteins
Explanation :
Antibodies are large Y-shaped proteins that are produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as bacteria and viruses.
[20] Which one of the following is called the 'digestive bag' in the cell?
A.
Golgi body
B.
Mitochondrion
C.
Ribosome
D.
Lysosome
Ans:
Lysosome
Explanation :
Lysosomes are known as digestive bag because it digest every foreign material as well as worn out cell organelles. They contain powerful digestive enzymes which are capable of breaking down all organic materials.
[21] Osteocytes are found in -
A.
Bone
B.
Blood
C.
Cartilage
D.
Lymph
Ans:
Bone
Explanation :
An osteocyte, a star shaped cell, is the most commonly found cell in mature bone, and can live as long as the organism itself. Osteocytes are networked to each other via long cytoplasmic extensions that occupy tiny canals called canaliculi, which are used for exchange of nutrients and waste through gap junctions. The space that an osteocyte occupies is called a lacuna.
[22] Which of the following is known as the graveyard of RBC?
A.
Liver
B.
Spleen
C.
Brain
D.
Heart
Ans:
Spleen
Explanation :
Red Blood Cells (RBC) take their origin in the bone marrow. The liver also produces RBC, but only during infancy. The average life span of RBC is about 100 - 120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, bone marrow is commonly called the cradle of RBC' and spleen is commonly called the 'graveyard of RBC'.
[23] The largest mixed gland of human body is -
A.
Thymus
B.
Liver
C.
Pancreas
D.
Spleen
Ans:
Pancreas
Explanation :
Pancreas is a mixed gland having both endocrine and exocrine functions. The exocrine portion secretes digestive enzymes into the duodenum via the pancreatic duct. The endocrine portion secretes two hormones, insulin and glucagon, into the blood.
[24] Which acid is present in the stomach of humans?
A.
sulphuric acid
B.
hydrochloric acid
C.
nitric acid
D.
citric acid
Ans:
hydrochloric acid
Explanation :
The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria.
[25] Study of Crop production is –
A.
Entology
B.
Ecology
C.
Botany
D.
Agronomy
Ans:
Agronomy
Explanation :
Agronomy is a branch of agricultural science that deals with the study of crops and the soils in which they grow. Agronomists work to develop methods that will improve the use of soil and increase the production of food and fiber crops.
Explanation :
Drones are male honey bees. They develop from eggs that have not been fertilized, and they cannot sting, since the worker bee's stinger is a modified ovipositor (an egg laying organ).
[18] Blood clotting will not occur in the absence of -
A.
Iron
B.
Calcium
C.
Phosphorus
D.
None of the above
Ans:
Calcium
Explanation :
Calcium works together with vitamin K and a protein called fibrinogen in the clotting cascade.
[19] 'Antibodies', which protect our body from infections, are which type of compounds?
A.
Carbohydrates
B.
Fats
C.
Proteins
D.
Vitamins
Ans:
Proteins
Explanation :
Antibodies are large Y-shaped proteins that are produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as bacteria and viruses.
[20] Which one of the following is called the 'digestive bag' in the cell?
A.
Golgi body
B.
Mitochondrion
C.
Ribosome
D.
Lysosome
Ans:
Lysosome
Explanation :
Lysosomes are known as digestive bag because it digest every foreign material as well as worn out cell organelles. They contain powerful digestive enzymes which are capable of breaking down all organic materials.
[21] Osteocytes are found in -
A.
Bone
B.
Blood
C.
Cartilage
D.
Lymph
Ans:
Bone
Explanation :
An osteocyte, a star shaped cell, is the most commonly found cell in mature bone, and can live as long as the organism itself. Osteocytes are networked to each other via long cytoplasmic extensions that occupy tiny canals called canaliculi, which are used for exchange of nutrients and waste through gap junctions. The space that an osteocyte occupies is called a lacuna.
[22] Which of the following is known as the graveyard of RBC?
A.
Liver
B.
Spleen
C.
Brain
D.
Heart
Ans:
Spleen
Explanation :
Red Blood Cells (RBC) take their origin in the bone marrow. The liver also produces RBC, but only during infancy. The average life span of RBC is about 100 - 120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, bone marrow is commonly called the cradle of RBC' and spleen is commonly called the 'graveyard of RBC'.
[23] The largest mixed gland of human body is -
A.
Thymus
B.
Liver
C.
Pancreas
D.
Spleen
Ans:
Pancreas
Explanation :
Pancreas is a mixed gland having both endocrine and exocrine functions. The exocrine portion secretes digestive enzymes into the duodenum via the pancreatic duct. The endocrine portion secretes two hormones, insulin and glucagon, into the blood.
[24] Which acid is present in the stomach of humans?
A.
sulphuric acid
B.
hydrochloric acid
C.
nitric acid
D.
citric acid
Ans:
hydrochloric acid
Explanation :
The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria.
[25] Study of Crop production is –
A.
Entology
B.
Ecology
C.
Botany
D.
Agronomy
Ans:
Agronomy
Explanation :
Agronomy is a branch of agricultural science that deals with the study of crops and the soils in which they grow. Agronomists work to develop methods that will improve the use of soil and increase the production of food and fiber crops.
Explanation :
Antibodies are large Y-shaped proteins that are produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as bacteria and viruses.
[20] Which one of the following is called the 'digestive bag' in the cell?
A.
Golgi body
B.
Mitochondrion
C.
Ribosome
D.
Lysosome
Ans:
Lysosome
Explanation :
Lysosomes are known as digestive bag because it digest every foreign material as well as worn out cell organelles. They contain powerful digestive enzymes which are capable of breaking down all organic materials.
[21] Osteocytes are found in -
A.
Bone
B.
Blood
C.
Cartilage
D.
Lymph
Ans:
Bone
Explanation :
An osteocyte, a star shaped cell, is the most commonly found cell in mature bone, and can live as long as the organism itself. Osteocytes are networked to each other via long cytoplasmic extensions that occupy tiny canals called canaliculi, which are used for exchange of nutrients and waste through gap junctions. The space that an osteocyte occupies is called a lacuna.
[22] Which of the following is known as the graveyard of RBC?
A.
Liver
B.
Spleen
C.
Brain
D.
Heart
Ans:
Spleen
Explanation :
Red Blood Cells (RBC) take their origin in the bone marrow. The liver also produces RBC, but only during infancy. The average life span of RBC is about 100 - 120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, bone marrow is commonly called the cradle of RBC' and spleen is commonly called the 'graveyard of RBC'.
[23] The largest mixed gland of human body is -
A.
Thymus
B.
Liver
C.
Pancreas
D.
Spleen
Ans:
Pancreas
Explanation :
Pancreas is a mixed gland having both endocrine and exocrine functions. The exocrine portion secretes digestive enzymes into the duodenum via the pancreatic duct. The endocrine portion secretes two hormones, insulin and glucagon, into the blood.
[24] Which acid is present in the stomach of humans?
A.
sulphuric acid
B.
hydrochloric acid
C.
nitric acid
D.
citric acid
Ans:
hydrochloric acid
Explanation :
The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria.
[25] Study of Crop production is –
A.
Entology
B.
Ecology
C.
Botany
D.
Agronomy
Ans:
Agronomy
Explanation :
Agronomy is a branch of agricultural science that deals with the study of crops and the soils in which they grow. Agronomists work to develop methods that will improve the use of soil and increase the production of food and fiber crops.
Explanation :
An osteocyte, a star shaped cell, is the most commonly found cell in mature bone, and can live as long as the organism itself. Osteocytes are networked to each other via long cytoplasmic extensions that occupy tiny canals called canaliculi, which are used for exchange of nutrients and waste through gap junctions. The space that an osteocyte occupies is called a lacuna.
[22] Which of the following is known as the graveyard of RBC?
A.
Liver
B.
Spleen
C.
Brain
D.
Heart
Ans:
Spleen
Explanation :
Red Blood Cells (RBC) take their origin in the bone marrow. The liver also produces RBC, but only during infancy. The average life span of RBC is about 100 - 120 days. The old, worn out and dead RBC are destroyed mainly in an organ called spleen. Hence, bone marrow is commonly called the cradle of RBC' and spleen is commonly called the 'graveyard of RBC'.
[23] The largest mixed gland of human body is -
A.
Thymus
B.
Liver
C.
Pancreas
D.
Spleen
Ans:
Pancreas
Explanation :
Pancreas is a mixed gland having both endocrine and exocrine functions. The exocrine portion secretes digestive enzymes into the duodenum via the pancreatic duct. The endocrine portion secretes two hormones, insulin and glucagon, into the blood.
[24] Which acid is present in the stomach of humans?
A.
sulphuric acid
B.
hydrochloric acid
C.
nitric acid
D.
citric acid
Ans:
hydrochloric acid
Explanation :
The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria.
[25] Study of Crop production is –
A.
Entology
B.
Ecology
C.
Botany
D.
Agronomy
Ans:
Agronomy
Explanation :
Agronomy is a branch of agricultural science that deals with the study of crops and the soils in which they grow. Agronomists work to develop methods that will improve the use of soil and increase the production of food and fiber crops.
Explanation :
Pancreas is a mixed gland having both endocrine and exocrine functions. The exocrine portion secretes digestive enzymes into the duodenum via the pancreatic duct. The endocrine portion secretes two hormones, insulin and glucagon, into the blood.
[24] Which acid is present in the stomach of humans?
A.
sulphuric acid
B.
hydrochloric acid
C.
nitric acid
D.
citric acid
Ans:
hydrochloric acid
Explanation :
The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria.
[25] Study of Crop production is –
A.
Entology
B.
Ecology
C.
Botany
D.
Agronomy
Ans:
Agronomy
Explanation :
Agronomy is a branch of agricultural science that deals with the study of crops and the soils in which they grow. Agronomists work to develop methods that will improve the use of soil and increase the production of food and fiber crops.
Explanation :
Agronomy is a branch of agricultural science that deals with the study of crops and the soils in which they grow. Agronomists work to develop methods that will improve the use of soil and increase the production of food and fiber crops.