[1] Carolus Linnaeus System of classification is -
A.
Natural
B.
Artificial
C.
Binomial
D.
Phylogenetic
Ans:
Binomial
Explanation :
Swedish naturalist Carl Linnaeus established the binomial system of naming living organisms, setting a format and a structured process for classifying the interrelationships between plants (among which he included all fungi), and between animals. The binomial system that Linnaeus devised enables an author to refer to a species confident that it will mean the same thing to informed readers anywhere else in the world.
[2] The hydrophilic nature of DNA is due to the presence of -
A.
thymine base
B.
Biotic resources
C.
phosphate group
D.
deoxyribose sugar
Ans:
Biotic resources
Explanation :
The phosphate groups on DNA are ionic and charged. Each phosphategroup on the DNA back-bone is one unit of negative charge (-1). Charged molecules attract water and are hydrophilic. DNA has two hydrophilic polar external backbones made of sugars and phosphate groups joined by ester bonds.
[3] Which of the following is used in the treatment of cancer?
A.
Physiotherapy
B.
Chemotherapy
C.
Electrotherapy
D.
Psychotherapy
Ans:
Chemotherapy
Explanation :
Chemotherapy (or CTX) is a category of cancer treatment that uses chemical substances, especially one or more anti-cancer drugs (chemotherapeutic agents) that are given as part of a standardized chemotherapy regimen. Traditional chemotherapeutic agents are cytotoxic, that is to say they act by killing cells that divide rapidly, one of the main properties of most cancer cells.
[4] Which of the following plant shows chloroplast dimorphism?
A.
Sugar beet
B.
Rice
C.
Wheat
D.
Sugarcane
Ans:
Sugarcane
Explanation :
Certain plans which possess the C4 dicarboxylic acid pathway of CO2 fixations show a structural dimorphism of chloroplast structure. Sugarcane is a common example of C4 plant that has dimorphic chloroplast. The mesophyll cells possess chloroplasts with well developed grana whereas the bundle sheath chloroplasts lack the organization of grana (Agranal chloroplasts). The malic acid is transported to the bundle sheath chloroplast (Transportations). Here it is converted to pyruvic acid and CO2 by NADP+ malic enzyme (Decarboxylation). The pyruvic acid is then transported to mesophyll chloroplasts (Transportation).
[5] The gene which exhibits multiple effects is known as -
A.
Pseudogene
B.
Pleiotropic
C.
Complementary
D.
Polygene
Ans:
Pleiotropic
Explanation :
Pleiotropy describes the genetic effect of a single gene on multiple phenotypic traits. The underlying mechanism is that the gene codes for a product that is, for example, used by various cells, or has a signaling function on various targets. A classic example of pleiotropy is phenylketonuria, a human disease that affects multiple systems but is caused by one gene defect.
[6] The deficiency of vitamin A causes -
A.
night blindness
B.
beriberi
C.
rickets
D.
pellagra
Ans:
night blindness
Explanation :
Nyctalopia (night blindness) is a condition making it difficult or impossible to see in relatively low light. It is one of the first signs of Vitamin A deficiency. Xerophthalmia, keratomalacia, and complete blindness can also occur since Vitamin A has a major role in phototransduction.
[7] The use of heat treatment of ore that includes smelting and roasting is termed as -
A.
Electrometallurgy
B.
Hydrometallurgy
C.
Pyrometallurgy
D.
Cryometallurgy
Ans:
Pyrometallurgy
Explanation :
Pyrometallurgy consists of the thermal treatment of minerals and metallurgical ores and concentrates to bring about physical and chemical transformations in the materials to enable recovery of valuable metals. During pyrometallic processing, an ore, after being beneficiated (concentrated by crushing, grinding, floating and drying), is sintered or roasted (calcined) with other materials such as baghouse dust and flux. The concentrate is then smelted, or melted, in a blast furnace in order to fuse the desired metals into impure molten bullion.
[8] Which one of the following is not an artificial sweetener?
A.
Fructose
B.
Saccharin
C.
Sucralose
D.
Aspartame
Ans:
Fructose
Explanation :
Some of the examples of artificial sweeteners include: acesulfame K, aspartame, neotame, saccharin, sucralose, etc. Fructose is a natural simple sugar found in fruits, honey, and vegetables. It is one of the three dietary monosaccharides, along with glucose and galactose.
[9] Which one of the following substances is normally found in urine?
A.
blood proteins
B.
creatinine
C.
red blood cells
D.
white blood cells
Ans:
creatinine
Explanation :
Creatinine is a chemical waste molecule that is generated from muscle metabolism. It is transported through the bloodstream to the kidneys. The kidneys filter out most of the creatinine and dispose of it in the urine. High levels of creatinine warn of possible malfunction or failure of the kidneys.
[10] Leptospirosis is a disease caused by -
A.
Virus
B.
Fungus
C.
Protozoa
D.
None
Ans:
None
Explanation :
Leptospirosis is a bacterial diseasecaused by corkscrew-shaped bacteria called Leptospira. Signs and symptoms can range from none to mild such as headaches, muscle pains, and fevers; to severe with bleeding from the lungs or meningitis. If the infection causes the person to turn yellow, have kidney failure and bleeding, it is then known as Weil’s disease.
[11] Hepatitis affects which organ of the human body?
A.
Liver
B.
Pancreas
C.
Spleen
D.
Small intestine
Ans:
Liver
Explanation :
Hepatitis refers to an inflammatory condition of the liver. It is commonly caused by a viral infection. Other causes include heavy alcohol use, certain medications, toxins, other infections, and autoimmune diseases, and non-alcoholic steatohepatitis (NASH). There are five main types of viral hepatitis: type A, B, C, D, and E.
[12] Why is Rann of Kutch of India famous for?
A.
Tidal and flats
B.
Fertile soil
C.
Dense Vegetation
D.
All are correct
Ans:
Tidal and flats
Explanation :
The Great Rann of Kutch is a seasonal salt marsh located in the Thar Desert in the Kutch District of Gujarat, India and the Sindh province of Pakistan. It is known for its marshland and mud flats, also known as tidal flats, that are coastal wetlands which form when mud is deposited by tides or rivers.
[13] Azolla increases soil fertility for -
A.
maize cultivation
B.
wheat cultivation
C.
barley cultivation
D.
rice cultivation
Ans:
rice cultivation
Explanation :
The nitrogen-fixing capability of Azolla has led to it being widely used as a biofertiliser for increasing the productivity of rice fields. When rice paddies are flooded in the spring, they can be inoculated with Azolla, which then quickly multiplies to cover the water, suppressing weeds. The rotting plant material releases nitrogen to the rice plants, increasing the rice yield equivalent to that produced by 30-60 kg N/ha.
[14] Haematopoiesis take place in -
A.
Lungs
B.
Pancreas
C.
Liver
D.
Bone marrow
Ans:
Bone marrow
Explanation :
Haematopoiesisis the formation of blood cellular components. The sites where haematopoiesis occurs change during embryonic development, but in adult mammals, the bone marrow is the major site of haematopoiesis. Haematopoietic stem cells in the bone marrow reside in a specialised microenvironment known as the hematopoietic stem cell niche, composed of osteoblasts, mesenchymal cells and sinusoidal vessels.
[15] is a hormone that regulates the amount of glucose in the blood.
A.
Glucogen
B.
Thyroxine
C.
Oxytocin
D.
Insulin
Ans:
Insulin
Explanation :
Insulin is a hormone that allows our body to use sugar (glucose) from carbohydrates in the food that we eat for energy or to store glucose for future use. Insulin helps keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia).Insulin is a peptide hormone produced by beta cells of the pancreatic islets.
[16] What is main root of plants called as?
A.
Tap root
B.
Lateral roots
C.
Fibrous roots
D.
Anchor
Ans:
Tap root
Explanation :
The root system of a plant constantly provides the stems and leaves with water and dissolved minerals. Characterized by having one main root (the taproot) from which smaller branch roots emerge. When a seed germinates, the first root to emerge is the radicle, or primary root.
[17] For digestion of fat, bile is needed. This is secreted by the -
A.
stomach
B.
pituitary gland
C.
pancreas
D.
liver
Ans:
liver
Explanation :
Bile secretion is one of the major functions of the liver, which serves two major purposes: (1) the excretion of hepatic metabolites—including bilirubin, cholesterol, drugs, and toxins—and (2) the facilitation of intestinal absorption of lipids and fat-soluble vitamins.
[18] Which is the largest gland in human body?
A.
Liver
B.
Thyroid
C.
Pituitary gland
D.
Saliatary
Ans:
Liver
Explanation :
Liver is the largest gland in human body. It is also the largest (internal) organ in our body and can weigh up to 1.5-1.6 kg for a human adult. The large size of the liver is matched by its functional complexity and involvement in a diverse array of regulatory mechanisms. It plays a major role in regulation of glycogen storage, decomposition of red blood cells, plasma protein synthesis, hormone production, and detoxification.
[19] Which organ of human body secretes Insulin?
A.
Pancreas
B.
Kidney
C.
Gall bladder
D.
Liver
Ans:
Pancreas
Explanation :
Insulin is a hormone secreted by the pancreas that is important for metabolism and utilization of energy from the ingested nutrients - especially glucose. It keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia). The pancreas is a glandular organ in the digestive system and endocrine system of vertebrates.
[20] Solar energy is converted into chemical energy during -
A.
Combustion
B.
Transition
C.
Photosynthesis
D.
Fusion
Ans:
Photosynthesis
Explanation :
Photosynthesis in plants converts radiant energy from the sun into chemical energy in the form of glucose (sugar) using electrons and protons from water. Plants take in water, carbon dioxide, and sunlight and turn them into glucose and oxygen. Water (6H2O) + Carbon Dioxide (6CO2) + Sunlight (Radiant Energy) = Glucose (C6H12O6) + Oxygen (6O2).
[21] Which one of the following is not the excretory organ?
A.
Kidneys
B.
Liver
C.
Lungs
D.
Spleen
Ans:
Spleen
Explanation :
The excretory system is a collection of organs tasked with removing excess nitrogen and other toxins from the body. Several parts of the body such as sweat glands (excretion of sweat), liver (detoxifies and breaks down chemicals, poisons and other toxins that enter the body), lungs (disposal of carbon dioxide through exhalation) and kidneys (excretion of waste through urinary system) are involved in this process. The spleen is the organ that is responsible for both the storage and purification of red blood cells.
[22] Which one of the following is an insectivorous plant?
A.
Utricularia
B.
Sequoia Gigantia
C.
Nostoc
D.
Bryophyta
Ans:
Utricularia
Explanation :
Utricularia (also called bladderworts) is a genus of carnivorous plants. They occur in fresh water and wet soil as terrestrial or aquatic species. All Utricularia are carnivorous and capture small organisms by means of bladder-like traps. Terrestrial species feed on protozoa and rotifers swimming in water saturated soil’ while aquatic species feed on water fleas (Daphnia), nematodes and even fish fry, mosquito larvae and young tadpoles.
[23] is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi.
A.
Cellulose
B.
Glycogen
C.
Pectin
D.
Chitin
Ans:
Glycogen
Explanation :
Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in humans, animals, and fungi. The polysaccharide structure represents the main storage form of glucose in the body. Glycogen is the analogue of starch, a glucose polymer that functions as energy storage in plants.
[24] Mechanism preventing interbreeding is called -
A.
Adaptation
B.
Isolation
C.
Reproduction
D.
Recombination
Ans:
Isolation
Explanation :
Because interbreeding can destroy the genetic integrity of a species, causing it to become progressively infertile or extinct, evolutionary changes in anatomy and biology developed to prevent interbreeding between species. The specific term is Reproductive Isolation, which acts to prevent some, any, or all stages of reproduction from occurring. Reproductive Isolation is very important in keeping animal species separated.
[25] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms such as bacteria. Biodegradable waste can be used for composting or a resource for heat, electricity and fuel by means of incineration or anaerobic digestion.
Explanation :
Swedish naturalist Carl Linnaeus established the binomial system of naming living organisms, setting a format and a structured process for classifying the interrelationships between plants (among which he included all fungi), and between animals. The binomial system that Linnaeus devised enables an author to refer to a species confident that it will mean the same thing to informed readers anywhere else in the world.
[2] The hydrophilic nature of DNA is due to the presence of -
A.
thymine base
B.
Biotic resources
C.
phosphate group
D.
deoxyribose sugar
Ans:
Biotic resources
Explanation :
The phosphate groups on DNA are ionic and charged. Each phosphategroup on the DNA back-bone is one unit of negative charge (-1). Charged molecules attract water and are hydrophilic. DNA has two hydrophilic polar external backbones made of sugars and phosphate groups joined by ester bonds.
[3] Which of the following is used in the treatment of cancer?
A.
Physiotherapy
B.
Chemotherapy
C.
Electrotherapy
D.
Psychotherapy
Ans:
Chemotherapy
Explanation :
Chemotherapy (or CTX) is a category of cancer treatment that uses chemical substances, especially one or more anti-cancer drugs (chemotherapeutic agents) that are given as part of a standardized chemotherapy regimen. Traditional chemotherapeutic agents are cytotoxic, that is to say they act by killing cells that divide rapidly, one of the main properties of most cancer cells.
[4] Which of the following plant shows chloroplast dimorphism?
A.
Sugar beet
B.
Rice
C.
Wheat
D.
Sugarcane
Ans:
Sugarcane
Explanation :
Certain plans which possess the C4 dicarboxylic acid pathway of CO2 fixations show a structural dimorphism of chloroplast structure. Sugarcane is a common example of C4 plant that has dimorphic chloroplast. The mesophyll cells possess chloroplasts with well developed grana whereas the bundle sheath chloroplasts lack the organization of grana (Agranal chloroplasts). The malic acid is transported to the bundle sheath chloroplast (Transportations). Here it is converted to pyruvic acid and CO2 by NADP+ malic enzyme (Decarboxylation). The pyruvic acid is then transported to mesophyll chloroplasts (Transportation).
[5] The gene which exhibits multiple effects is known as -
A.
Pseudogene
B.
Pleiotropic
C.
Complementary
D.
Polygene
Ans:
Pleiotropic
Explanation :
Pleiotropy describes the genetic effect of a single gene on multiple phenotypic traits. The underlying mechanism is that the gene codes for a product that is, for example, used by various cells, or has a signaling function on various targets. A classic example of pleiotropy is phenylketonuria, a human disease that affects multiple systems but is caused by one gene defect.
[6] The deficiency of vitamin A causes -
A.
night blindness
B.
beriberi
C.
rickets
D.
pellagra
Ans:
night blindness
Explanation :
Nyctalopia (night blindness) is a condition making it difficult or impossible to see in relatively low light. It is one of the first signs of Vitamin A deficiency. Xerophthalmia, keratomalacia, and complete blindness can also occur since Vitamin A has a major role in phototransduction.
[7] The use of heat treatment of ore that includes smelting and roasting is termed as -
A.
Electrometallurgy
B.
Hydrometallurgy
C.
Pyrometallurgy
D.
Cryometallurgy
Ans:
Pyrometallurgy
Explanation :
Pyrometallurgy consists of the thermal treatment of minerals and metallurgical ores and concentrates to bring about physical and chemical transformations in the materials to enable recovery of valuable metals. During pyrometallic processing, an ore, after being beneficiated (concentrated by crushing, grinding, floating and drying), is sintered or roasted (calcined) with other materials such as baghouse dust and flux. The concentrate is then smelted, or melted, in a blast furnace in order to fuse the desired metals into impure molten bullion.
[8] Which one of the following is not an artificial sweetener?
A.
Fructose
B.
Saccharin
C.
Sucralose
D.
Aspartame
Ans:
Fructose
Explanation :
Some of the examples of artificial sweeteners include: acesulfame K, aspartame, neotame, saccharin, sucralose, etc. Fructose is a natural simple sugar found in fruits, honey, and vegetables. It is one of the three dietary monosaccharides, along with glucose and galactose.
[9] Which one of the following substances is normally found in urine?
A.
blood proteins
B.
creatinine
C.
red blood cells
D.
white blood cells
Ans:
creatinine
Explanation :
Creatinine is a chemical waste molecule that is generated from muscle metabolism. It is transported through the bloodstream to the kidneys. The kidneys filter out most of the creatinine and dispose of it in the urine. High levels of creatinine warn of possible malfunction or failure of the kidneys.
[10] Leptospirosis is a disease caused by -
A.
Virus
B.
Fungus
C.
Protozoa
D.
None
Ans:
None
Explanation :
Leptospirosis is a bacterial diseasecaused by corkscrew-shaped bacteria called Leptospira. Signs and symptoms can range from none to mild such as headaches, muscle pains, and fevers; to severe with bleeding from the lungs or meningitis. If the infection causes the person to turn yellow, have kidney failure and bleeding, it is then known as Weil’s disease.
[11] Hepatitis affects which organ of the human body?
A.
Liver
B.
Pancreas
C.
Spleen
D.
Small intestine
Ans:
Liver
Explanation :
Hepatitis refers to an inflammatory condition of the liver. It is commonly caused by a viral infection. Other causes include heavy alcohol use, certain medications, toxins, other infections, and autoimmune diseases, and non-alcoholic steatohepatitis (NASH). There are five main types of viral hepatitis: type A, B, C, D, and E.
[12] Why is Rann of Kutch of India famous for?
A.
Tidal and flats
B.
Fertile soil
C.
Dense Vegetation
D.
All are correct
Ans:
Tidal and flats
Explanation :
The Great Rann of Kutch is a seasonal salt marsh located in the Thar Desert in the Kutch District of Gujarat, India and the Sindh province of Pakistan. It is known for its marshland and mud flats, also known as tidal flats, that are coastal wetlands which form when mud is deposited by tides or rivers.
[13] Azolla increases soil fertility for -
A.
maize cultivation
B.
wheat cultivation
C.
barley cultivation
D.
rice cultivation
Ans:
rice cultivation
Explanation :
The nitrogen-fixing capability of Azolla has led to it being widely used as a biofertiliser for increasing the productivity of rice fields. When rice paddies are flooded in the spring, they can be inoculated with Azolla, which then quickly multiplies to cover the water, suppressing weeds. The rotting plant material releases nitrogen to the rice plants, increasing the rice yield equivalent to that produced by 30-60 kg N/ha.
[14] Haematopoiesis take place in -
A.
Lungs
B.
Pancreas
C.
Liver
D.
Bone marrow
Ans:
Bone marrow
Explanation :
Haematopoiesisis the formation of blood cellular components. The sites where haematopoiesis occurs change during embryonic development, but in adult mammals, the bone marrow is the major site of haematopoiesis. Haematopoietic stem cells in the bone marrow reside in a specialised microenvironment known as the hematopoietic stem cell niche, composed of osteoblasts, mesenchymal cells and sinusoidal vessels.
[15] is a hormone that regulates the amount of glucose in the blood.
A.
Glucogen
B.
Thyroxine
C.
Oxytocin
D.
Insulin
Ans:
Insulin
Explanation :
Insulin is a hormone that allows our body to use sugar (glucose) from carbohydrates in the food that we eat for energy or to store glucose for future use. Insulin helps keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia).Insulin is a peptide hormone produced by beta cells of the pancreatic islets.
[16] What is main root of plants called as?
A.
Tap root
B.
Lateral roots
C.
Fibrous roots
D.
Anchor
Ans:
Tap root
Explanation :
The root system of a plant constantly provides the stems and leaves with water and dissolved minerals. Characterized by having one main root (the taproot) from which smaller branch roots emerge. When a seed germinates, the first root to emerge is the radicle, or primary root.
[17] For digestion of fat, bile is needed. This is secreted by the -
A.
stomach
B.
pituitary gland
C.
pancreas
D.
liver
Ans:
liver
Explanation :
Bile secretion is one of the major functions of the liver, which serves two major purposes: (1) the excretion of hepatic metabolites—including bilirubin, cholesterol, drugs, and toxins—and (2) the facilitation of intestinal absorption of lipids and fat-soluble vitamins.
[18] Which is the largest gland in human body?
A.
Liver
B.
Thyroid
C.
Pituitary gland
D.
Saliatary
Ans:
Liver
Explanation :
Liver is the largest gland in human body. It is also the largest (internal) organ in our body and can weigh up to 1.5-1.6 kg for a human adult. The large size of the liver is matched by its functional complexity and involvement in a diverse array of regulatory mechanisms. It plays a major role in regulation of glycogen storage, decomposition of red blood cells, plasma protein synthesis, hormone production, and detoxification.
[19] Which organ of human body secretes Insulin?
A.
Pancreas
B.
Kidney
C.
Gall bladder
D.
Liver
Ans:
Pancreas
Explanation :
Insulin is a hormone secreted by the pancreas that is important for metabolism and utilization of energy from the ingested nutrients - especially glucose. It keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia). The pancreas is a glandular organ in the digestive system and endocrine system of vertebrates.
[20] Solar energy is converted into chemical energy during -
A.
Combustion
B.
Transition
C.
Photosynthesis
D.
Fusion
Ans:
Photosynthesis
Explanation :
Photosynthesis in plants converts radiant energy from the sun into chemical energy in the form of glucose (sugar) using electrons and protons from water. Plants take in water, carbon dioxide, and sunlight and turn them into glucose and oxygen. Water (6H2O) + Carbon Dioxide (6CO2) + Sunlight (Radiant Energy) = Glucose (C6H12O6) + Oxygen (6O2).
[21] Which one of the following is not the excretory organ?
A.
Kidneys
B.
Liver
C.
Lungs
D.
Spleen
Ans:
Spleen
Explanation :
The excretory system is a collection of organs tasked with removing excess nitrogen and other toxins from the body. Several parts of the body such as sweat glands (excretion of sweat), liver (detoxifies and breaks down chemicals, poisons and other toxins that enter the body), lungs (disposal of carbon dioxide through exhalation) and kidneys (excretion of waste through urinary system) are involved in this process. The spleen is the organ that is responsible for both the storage and purification of red blood cells.
[22] Which one of the following is an insectivorous plant?
A.
Utricularia
B.
Sequoia Gigantia
C.
Nostoc
D.
Bryophyta
Ans:
Utricularia
Explanation :
Utricularia (also called bladderworts) is a genus of carnivorous plants. They occur in fresh water and wet soil as terrestrial or aquatic species. All Utricularia are carnivorous and capture small organisms by means of bladder-like traps. Terrestrial species feed on protozoa and rotifers swimming in water saturated soil’ while aquatic species feed on water fleas (Daphnia), nematodes and even fish fry, mosquito larvae and young tadpoles.
[23] is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi.
A.
Cellulose
B.
Glycogen
C.
Pectin
D.
Chitin
Ans:
Glycogen
Explanation :
Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in humans, animals, and fungi. The polysaccharide structure represents the main storage form of glucose in the body. Glycogen is the analogue of starch, a glucose polymer that functions as energy storage in plants.
[24] Mechanism preventing interbreeding is called -
A.
Adaptation
B.
Isolation
C.
Reproduction
D.
Recombination
Ans:
Isolation
Explanation :
Because interbreeding can destroy the genetic integrity of a species, causing it to become progressively infertile or extinct, evolutionary changes in anatomy and biology developed to prevent interbreeding between species. The specific term is Reproductive Isolation, which acts to prevent some, any, or all stages of reproduction from occurring. Reproductive Isolation is very important in keeping animal species separated.
[25] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms such as bacteria. Biodegradable waste can be used for composting or a resource for heat, electricity and fuel by means of incineration or anaerobic digestion.
Explanation :
Chemotherapy (or CTX) is a category of cancer treatment that uses chemical substances, especially one or more anti-cancer drugs (chemotherapeutic agents) that are given as part of a standardized chemotherapy regimen. Traditional chemotherapeutic agents are cytotoxic, that is to say they act by killing cells that divide rapidly, one of the main properties of most cancer cells.
[4] Which of the following plant shows chloroplast dimorphism?
A.
Sugar beet
B.
Rice
C.
Wheat
D.
Sugarcane
Ans:
Sugarcane
Explanation :
Certain plans which possess the C4 dicarboxylic acid pathway of CO2 fixations show a structural dimorphism of chloroplast structure. Sugarcane is a common example of C4 plant that has dimorphic chloroplast. The mesophyll cells possess chloroplasts with well developed grana whereas the bundle sheath chloroplasts lack the organization of grana (Agranal chloroplasts). The malic acid is transported to the bundle sheath chloroplast (Transportations). Here it is converted to pyruvic acid and CO2 by NADP+ malic enzyme (Decarboxylation). The pyruvic acid is then transported to mesophyll chloroplasts (Transportation).
[5] The gene which exhibits multiple effects is known as -
A.
Pseudogene
B.
Pleiotropic
C.
Complementary
D.
Polygene
Ans:
Pleiotropic
Explanation :
Pleiotropy describes the genetic effect of a single gene on multiple phenotypic traits. The underlying mechanism is that the gene codes for a product that is, for example, used by various cells, or has a signaling function on various targets. A classic example of pleiotropy is phenylketonuria, a human disease that affects multiple systems but is caused by one gene defect.
[6] The deficiency of vitamin A causes -
A.
night blindness
B.
beriberi
C.
rickets
D.
pellagra
Ans:
night blindness
Explanation :
Nyctalopia (night blindness) is a condition making it difficult or impossible to see in relatively low light. It is one of the first signs of Vitamin A deficiency. Xerophthalmia, keratomalacia, and complete blindness can also occur since Vitamin A has a major role in phototransduction.
[7] The use of heat treatment of ore that includes smelting and roasting is termed as -
A.
Electrometallurgy
B.
Hydrometallurgy
C.
Pyrometallurgy
D.
Cryometallurgy
Ans:
Pyrometallurgy
Explanation :
Pyrometallurgy consists of the thermal treatment of minerals and metallurgical ores and concentrates to bring about physical and chemical transformations in the materials to enable recovery of valuable metals. During pyrometallic processing, an ore, after being beneficiated (concentrated by crushing, grinding, floating and drying), is sintered or roasted (calcined) with other materials such as baghouse dust and flux. The concentrate is then smelted, or melted, in a blast furnace in order to fuse the desired metals into impure molten bullion.
[8] Which one of the following is not an artificial sweetener?
A.
Fructose
B.
Saccharin
C.
Sucralose
D.
Aspartame
Ans:
Fructose
Explanation :
Some of the examples of artificial sweeteners include: acesulfame K, aspartame, neotame, saccharin, sucralose, etc. Fructose is a natural simple sugar found in fruits, honey, and vegetables. It is one of the three dietary monosaccharides, along with glucose and galactose.
[9] Which one of the following substances is normally found in urine?
A.
blood proteins
B.
creatinine
C.
red blood cells
D.
white blood cells
Ans:
creatinine
Explanation :
Creatinine is a chemical waste molecule that is generated from muscle metabolism. It is transported through the bloodstream to the kidneys. The kidneys filter out most of the creatinine and dispose of it in the urine. High levels of creatinine warn of possible malfunction or failure of the kidneys.
[10] Leptospirosis is a disease caused by -
A.
Virus
B.
Fungus
C.
Protozoa
D.
None
Ans:
None
Explanation :
Leptospirosis is a bacterial diseasecaused by corkscrew-shaped bacteria called Leptospira. Signs and symptoms can range from none to mild such as headaches, muscle pains, and fevers; to severe with bleeding from the lungs or meningitis. If the infection causes the person to turn yellow, have kidney failure and bleeding, it is then known as Weil’s disease.
[11] Hepatitis affects which organ of the human body?
A.
Liver
B.
Pancreas
C.
Spleen
D.
Small intestine
Ans:
Liver
Explanation :
Hepatitis refers to an inflammatory condition of the liver. It is commonly caused by a viral infection. Other causes include heavy alcohol use, certain medications, toxins, other infections, and autoimmune diseases, and non-alcoholic steatohepatitis (NASH). There are five main types of viral hepatitis: type A, B, C, D, and E.
[12] Why is Rann of Kutch of India famous for?
A.
Tidal and flats
B.
Fertile soil
C.
Dense Vegetation
D.
All are correct
Ans:
Tidal and flats
Explanation :
The Great Rann of Kutch is a seasonal salt marsh located in the Thar Desert in the Kutch District of Gujarat, India and the Sindh province of Pakistan. It is known for its marshland and mud flats, also known as tidal flats, that are coastal wetlands which form when mud is deposited by tides or rivers.
[13] Azolla increases soil fertility for -
A.
maize cultivation
B.
wheat cultivation
C.
barley cultivation
D.
rice cultivation
Ans:
rice cultivation
Explanation :
The nitrogen-fixing capability of Azolla has led to it being widely used as a biofertiliser for increasing the productivity of rice fields. When rice paddies are flooded in the spring, they can be inoculated with Azolla, which then quickly multiplies to cover the water, suppressing weeds. The rotting plant material releases nitrogen to the rice plants, increasing the rice yield equivalent to that produced by 30-60 kg N/ha.
[14] Haematopoiesis take place in -
A.
Lungs
B.
Pancreas
C.
Liver
D.
Bone marrow
Ans:
Bone marrow
Explanation :
Haematopoiesisis the formation of blood cellular components. The sites where haematopoiesis occurs change during embryonic development, but in adult mammals, the bone marrow is the major site of haematopoiesis. Haematopoietic stem cells in the bone marrow reside in a specialised microenvironment known as the hematopoietic stem cell niche, composed of osteoblasts, mesenchymal cells and sinusoidal vessels.
[15] is a hormone that regulates the amount of glucose in the blood.
A.
Glucogen
B.
Thyroxine
C.
Oxytocin
D.
Insulin
Ans:
Insulin
Explanation :
Insulin is a hormone that allows our body to use sugar (glucose) from carbohydrates in the food that we eat for energy or to store glucose for future use. Insulin helps keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia).Insulin is a peptide hormone produced by beta cells of the pancreatic islets.
[16] What is main root of plants called as?
A.
Tap root
B.
Lateral roots
C.
Fibrous roots
D.
Anchor
Ans:
Tap root
Explanation :
The root system of a plant constantly provides the stems and leaves with water and dissolved minerals. Characterized by having one main root (the taproot) from which smaller branch roots emerge. When a seed germinates, the first root to emerge is the radicle, or primary root.
[17] For digestion of fat, bile is needed. This is secreted by the -
A.
stomach
B.
pituitary gland
C.
pancreas
D.
liver
Ans:
liver
Explanation :
Bile secretion is one of the major functions of the liver, which serves two major purposes: (1) the excretion of hepatic metabolites—including bilirubin, cholesterol, drugs, and toxins—and (2) the facilitation of intestinal absorption of lipids and fat-soluble vitamins.
[18] Which is the largest gland in human body?
A.
Liver
B.
Thyroid
C.
Pituitary gland
D.
Saliatary
Ans:
Liver
Explanation :
Liver is the largest gland in human body. It is also the largest (internal) organ in our body and can weigh up to 1.5-1.6 kg for a human adult. The large size of the liver is matched by its functional complexity and involvement in a diverse array of regulatory mechanisms. It plays a major role in regulation of glycogen storage, decomposition of red blood cells, plasma protein synthesis, hormone production, and detoxification.
[19] Which organ of human body secretes Insulin?
A.
Pancreas
B.
Kidney
C.
Gall bladder
D.
Liver
Ans:
Pancreas
Explanation :
Insulin is a hormone secreted by the pancreas that is important for metabolism and utilization of energy from the ingested nutrients - especially glucose. It keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia). The pancreas is a glandular organ in the digestive system and endocrine system of vertebrates.
[20] Solar energy is converted into chemical energy during -
A.
Combustion
B.
Transition
C.
Photosynthesis
D.
Fusion
Ans:
Photosynthesis
Explanation :
Photosynthesis in plants converts radiant energy from the sun into chemical energy in the form of glucose (sugar) using electrons and protons from water. Plants take in water, carbon dioxide, and sunlight and turn them into glucose and oxygen. Water (6H2O) + Carbon Dioxide (6CO2) + Sunlight (Radiant Energy) = Glucose (C6H12O6) + Oxygen (6O2).
[21] Which one of the following is not the excretory organ?
A.
Kidneys
B.
Liver
C.
Lungs
D.
Spleen
Ans:
Spleen
Explanation :
The excretory system is a collection of organs tasked with removing excess nitrogen and other toxins from the body. Several parts of the body such as sweat glands (excretion of sweat), liver (detoxifies and breaks down chemicals, poisons and other toxins that enter the body), lungs (disposal of carbon dioxide through exhalation) and kidneys (excretion of waste through urinary system) are involved in this process. The spleen is the organ that is responsible for both the storage and purification of red blood cells.
[22] Which one of the following is an insectivorous plant?
A.
Utricularia
B.
Sequoia Gigantia
C.
Nostoc
D.
Bryophyta
Ans:
Utricularia
Explanation :
Utricularia (also called bladderworts) is a genus of carnivorous plants. They occur in fresh water and wet soil as terrestrial or aquatic species. All Utricularia are carnivorous and capture small organisms by means of bladder-like traps. Terrestrial species feed on protozoa and rotifers swimming in water saturated soil’ while aquatic species feed on water fleas (Daphnia), nematodes and even fish fry, mosquito larvae and young tadpoles.
[23] is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi.
A.
Cellulose
B.
Glycogen
C.
Pectin
D.
Chitin
Ans:
Glycogen
Explanation :
Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in humans, animals, and fungi. The polysaccharide structure represents the main storage form of glucose in the body. Glycogen is the analogue of starch, a glucose polymer that functions as energy storage in plants.
[24] Mechanism preventing interbreeding is called -
A.
Adaptation
B.
Isolation
C.
Reproduction
D.
Recombination
Ans:
Isolation
Explanation :
Because interbreeding can destroy the genetic integrity of a species, causing it to become progressively infertile or extinct, evolutionary changes in anatomy and biology developed to prevent interbreeding between species. The specific term is Reproductive Isolation, which acts to prevent some, any, or all stages of reproduction from occurring. Reproductive Isolation is very important in keeping animal species separated.
[25] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms such as bacteria. Biodegradable waste can be used for composting or a resource for heat, electricity and fuel by means of incineration or anaerobic digestion.
Explanation :
Pleiotropy describes the genetic effect of a single gene on multiple phenotypic traits. The underlying mechanism is that the gene codes for a product that is, for example, used by various cells, or has a signaling function on various targets. A classic example of pleiotropy is phenylketonuria, a human disease that affects multiple systems but is caused by one gene defect.
[6] The deficiency of vitamin A causes -
A.
night blindness
B.
beriberi
C.
rickets
D.
pellagra
Ans:
night blindness
Explanation :
Nyctalopia (night blindness) is a condition making it difficult or impossible to see in relatively low light. It is one of the first signs of Vitamin A deficiency. Xerophthalmia, keratomalacia, and complete blindness can also occur since Vitamin A has a major role in phototransduction.
[7] The use of heat treatment of ore that includes smelting and roasting is termed as -
A.
Electrometallurgy
B.
Hydrometallurgy
C.
Pyrometallurgy
D.
Cryometallurgy
Ans:
Pyrometallurgy
Explanation :
Pyrometallurgy consists of the thermal treatment of minerals and metallurgical ores and concentrates to bring about physical and chemical transformations in the materials to enable recovery of valuable metals. During pyrometallic processing, an ore, after being beneficiated (concentrated by crushing, grinding, floating and drying), is sintered or roasted (calcined) with other materials such as baghouse dust and flux. The concentrate is then smelted, or melted, in a blast furnace in order to fuse the desired metals into impure molten bullion.
[8] Which one of the following is not an artificial sweetener?
A.
Fructose
B.
Saccharin
C.
Sucralose
D.
Aspartame
Ans:
Fructose
Explanation :
Some of the examples of artificial sweeteners include: acesulfame K, aspartame, neotame, saccharin, sucralose, etc. Fructose is a natural simple sugar found in fruits, honey, and vegetables. It is one of the three dietary monosaccharides, along with glucose and galactose.
[9] Which one of the following substances is normally found in urine?
A.
blood proteins
B.
creatinine
C.
red blood cells
D.
white blood cells
Ans:
creatinine
Explanation :
Creatinine is a chemical waste molecule that is generated from muscle metabolism. It is transported through the bloodstream to the kidneys. The kidneys filter out most of the creatinine and dispose of it in the urine. High levels of creatinine warn of possible malfunction or failure of the kidneys.
[10] Leptospirosis is a disease caused by -
A.
Virus
B.
Fungus
C.
Protozoa
D.
None
Ans:
None
Explanation :
Leptospirosis is a bacterial diseasecaused by corkscrew-shaped bacteria called Leptospira. Signs and symptoms can range from none to mild such as headaches, muscle pains, and fevers; to severe with bleeding from the lungs or meningitis. If the infection causes the person to turn yellow, have kidney failure and bleeding, it is then known as Weil’s disease.
[11] Hepatitis affects which organ of the human body?
A.
Liver
B.
Pancreas
C.
Spleen
D.
Small intestine
Ans:
Liver
Explanation :
Hepatitis refers to an inflammatory condition of the liver. It is commonly caused by a viral infection. Other causes include heavy alcohol use, certain medications, toxins, other infections, and autoimmune diseases, and non-alcoholic steatohepatitis (NASH). There are five main types of viral hepatitis: type A, B, C, D, and E.
[12] Why is Rann of Kutch of India famous for?
A.
Tidal and flats
B.
Fertile soil
C.
Dense Vegetation
D.
All are correct
Ans:
Tidal and flats
Explanation :
The Great Rann of Kutch is a seasonal salt marsh located in the Thar Desert in the Kutch District of Gujarat, India and the Sindh province of Pakistan. It is known for its marshland and mud flats, also known as tidal flats, that are coastal wetlands which form when mud is deposited by tides or rivers.
[13] Azolla increases soil fertility for -
A.
maize cultivation
B.
wheat cultivation
C.
barley cultivation
D.
rice cultivation
Ans:
rice cultivation
Explanation :
The nitrogen-fixing capability of Azolla has led to it being widely used as a biofertiliser for increasing the productivity of rice fields. When rice paddies are flooded in the spring, they can be inoculated with Azolla, which then quickly multiplies to cover the water, suppressing weeds. The rotting plant material releases nitrogen to the rice plants, increasing the rice yield equivalent to that produced by 30-60 kg N/ha.
[14] Haematopoiesis take place in -
A.
Lungs
B.
Pancreas
C.
Liver
D.
Bone marrow
Ans:
Bone marrow
Explanation :
Haematopoiesisis the formation of blood cellular components. The sites where haematopoiesis occurs change during embryonic development, but in adult mammals, the bone marrow is the major site of haematopoiesis. Haematopoietic stem cells in the bone marrow reside in a specialised microenvironment known as the hematopoietic stem cell niche, composed of osteoblasts, mesenchymal cells and sinusoidal vessels.
[15] is a hormone that regulates the amount of glucose in the blood.
A.
Glucogen
B.
Thyroxine
C.
Oxytocin
D.
Insulin
Ans:
Insulin
Explanation :
Insulin is a hormone that allows our body to use sugar (glucose) from carbohydrates in the food that we eat for energy or to store glucose for future use. Insulin helps keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia).Insulin is a peptide hormone produced by beta cells of the pancreatic islets.
[16] What is main root of plants called as?
A.
Tap root
B.
Lateral roots
C.
Fibrous roots
D.
Anchor
Ans:
Tap root
Explanation :
The root system of a plant constantly provides the stems and leaves with water and dissolved minerals. Characterized by having one main root (the taproot) from which smaller branch roots emerge. When a seed germinates, the first root to emerge is the radicle, or primary root.
[17] For digestion of fat, bile is needed. This is secreted by the -
A.
stomach
B.
pituitary gland
C.
pancreas
D.
liver
Ans:
liver
Explanation :
Bile secretion is one of the major functions of the liver, which serves two major purposes: (1) the excretion of hepatic metabolites—including bilirubin, cholesterol, drugs, and toxins—and (2) the facilitation of intestinal absorption of lipids and fat-soluble vitamins.
[18] Which is the largest gland in human body?
A.
Liver
B.
Thyroid
C.
Pituitary gland
D.
Saliatary
Ans:
Liver
Explanation :
Liver is the largest gland in human body. It is also the largest (internal) organ in our body and can weigh up to 1.5-1.6 kg for a human adult. The large size of the liver is matched by its functional complexity and involvement in a diverse array of regulatory mechanisms. It plays a major role in regulation of glycogen storage, decomposition of red blood cells, plasma protein synthesis, hormone production, and detoxification.
[19] Which organ of human body secretes Insulin?
A.
Pancreas
B.
Kidney
C.
Gall bladder
D.
Liver
Ans:
Pancreas
Explanation :
Insulin is a hormone secreted by the pancreas that is important for metabolism and utilization of energy from the ingested nutrients - especially glucose. It keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia). The pancreas is a glandular organ in the digestive system and endocrine system of vertebrates.
[20] Solar energy is converted into chemical energy during -
A.
Combustion
B.
Transition
C.
Photosynthesis
D.
Fusion
Ans:
Photosynthesis
Explanation :
Photosynthesis in plants converts radiant energy from the sun into chemical energy in the form of glucose (sugar) using electrons and protons from water. Plants take in water, carbon dioxide, and sunlight and turn them into glucose and oxygen. Water (6H2O) + Carbon Dioxide (6CO2) + Sunlight (Radiant Energy) = Glucose (C6H12O6) + Oxygen (6O2).
[21] Which one of the following is not the excretory organ?
A.
Kidneys
B.
Liver
C.
Lungs
D.
Spleen
Ans:
Spleen
Explanation :
The excretory system is a collection of organs tasked with removing excess nitrogen and other toxins from the body. Several parts of the body such as sweat glands (excretion of sweat), liver (detoxifies and breaks down chemicals, poisons and other toxins that enter the body), lungs (disposal of carbon dioxide through exhalation) and kidneys (excretion of waste through urinary system) are involved in this process. The spleen is the organ that is responsible for both the storage and purification of red blood cells.
[22] Which one of the following is an insectivorous plant?
A.
Utricularia
B.
Sequoia Gigantia
C.
Nostoc
D.
Bryophyta
Ans:
Utricularia
Explanation :
Utricularia (also called bladderworts) is a genus of carnivorous plants. They occur in fresh water and wet soil as terrestrial or aquatic species. All Utricularia are carnivorous and capture small organisms by means of bladder-like traps. Terrestrial species feed on protozoa and rotifers swimming in water saturated soil’ while aquatic species feed on water fleas (Daphnia), nematodes and even fish fry, mosquito larvae and young tadpoles.
[23] is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi.
A.
Cellulose
B.
Glycogen
C.
Pectin
D.
Chitin
Ans:
Glycogen
Explanation :
Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in humans, animals, and fungi. The polysaccharide structure represents the main storage form of glucose in the body. Glycogen is the analogue of starch, a glucose polymer that functions as energy storage in plants.
[24] Mechanism preventing interbreeding is called -
A.
Adaptation
B.
Isolation
C.
Reproduction
D.
Recombination
Ans:
Isolation
Explanation :
Because interbreeding can destroy the genetic integrity of a species, causing it to become progressively infertile or extinct, evolutionary changes in anatomy and biology developed to prevent interbreeding between species. The specific term is Reproductive Isolation, which acts to prevent some, any, or all stages of reproduction from occurring. Reproductive Isolation is very important in keeping animal species separated.
[25] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms such as bacteria. Biodegradable waste can be used for composting or a resource for heat, electricity and fuel by means of incineration or anaerobic digestion.
Explanation :
Pyrometallurgy consists of the thermal treatment of minerals and metallurgical ores and concentrates to bring about physical and chemical transformations in the materials to enable recovery of valuable metals. During pyrometallic processing, an ore, after being beneficiated (concentrated by crushing, grinding, floating and drying), is sintered or roasted (calcined) with other materials such as baghouse dust and flux. The concentrate is then smelted, or melted, in a blast furnace in order to fuse the desired metals into impure molten bullion.
[8] Which one of the following is not an artificial sweetener?
A.
Fructose
B.
Saccharin
C.
Sucralose
D.
Aspartame
Ans:
Fructose
Explanation :
Some of the examples of artificial sweeteners include: acesulfame K, aspartame, neotame, saccharin, sucralose, etc. Fructose is a natural simple sugar found in fruits, honey, and vegetables. It is one of the three dietary monosaccharides, along with glucose and galactose.
[9] Which one of the following substances is normally found in urine?
A.
blood proteins
B.
creatinine
C.
red blood cells
D.
white blood cells
Ans:
creatinine
Explanation :
Creatinine is a chemical waste molecule that is generated from muscle metabolism. It is transported through the bloodstream to the kidneys. The kidneys filter out most of the creatinine and dispose of it in the urine. High levels of creatinine warn of possible malfunction or failure of the kidneys.
[10] Leptospirosis is a disease caused by -
A.
Virus
B.
Fungus
C.
Protozoa
D.
None
Ans:
None
Explanation :
Leptospirosis is a bacterial diseasecaused by corkscrew-shaped bacteria called Leptospira. Signs and symptoms can range from none to mild such as headaches, muscle pains, and fevers; to severe with bleeding from the lungs or meningitis. If the infection causes the person to turn yellow, have kidney failure and bleeding, it is then known as Weil’s disease.
[11] Hepatitis affects which organ of the human body?
A.
Liver
B.
Pancreas
C.
Spleen
D.
Small intestine
Ans:
Liver
Explanation :
Hepatitis refers to an inflammatory condition of the liver. It is commonly caused by a viral infection. Other causes include heavy alcohol use, certain medications, toxins, other infections, and autoimmune diseases, and non-alcoholic steatohepatitis (NASH). There are five main types of viral hepatitis: type A, B, C, D, and E.
[12] Why is Rann of Kutch of India famous for?
A.
Tidal and flats
B.
Fertile soil
C.
Dense Vegetation
D.
All are correct
Ans:
Tidal and flats
Explanation :
The Great Rann of Kutch is a seasonal salt marsh located in the Thar Desert in the Kutch District of Gujarat, India and the Sindh province of Pakistan. It is known for its marshland and mud flats, also known as tidal flats, that are coastal wetlands which form when mud is deposited by tides or rivers.
[13] Azolla increases soil fertility for -
A.
maize cultivation
B.
wheat cultivation
C.
barley cultivation
D.
rice cultivation
Ans:
rice cultivation
Explanation :
The nitrogen-fixing capability of Azolla has led to it being widely used as a biofertiliser for increasing the productivity of rice fields. When rice paddies are flooded in the spring, they can be inoculated with Azolla, which then quickly multiplies to cover the water, suppressing weeds. The rotting plant material releases nitrogen to the rice plants, increasing the rice yield equivalent to that produced by 30-60 kg N/ha.
[14] Haematopoiesis take place in -
A.
Lungs
B.
Pancreas
C.
Liver
D.
Bone marrow
Ans:
Bone marrow
Explanation :
Haematopoiesisis the formation of blood cellular components. The sites where haematopoiesis occurs change during embryonic development, but in adult mammals, the bone marrow is the major site of haematopoiesis. Haematopoietic stem cells in the bone marrow reside in a specialised microenvironment known as the hematopoietic stem cell niche, composed of osteoblasts, mesenchymal cells and sinusoidal vessels.
[15] is a hormone that regulates the amount of glucose in the blood.
A.
Glucogen
B.
Thyroxine
C.
Oxytocin
D.
Insulin
Ans:
Insulin
Explanation :
Insulin is a hormone that allows our body to use sugar (glucose) from carbohydrates in the food that we eat for energy or to store glucose for future use. Insulin helps keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia).Insulin is a peptide hormone produced by beta cells of the pancreatic islets.
[16] What is main root of plants called as?
A.
Tap root
B.
Lateral roots
C.
Fibrous roots
D.
Anchor
Ans:
Tap root
Explanation :
The root system of a plant constantly provides the stems and leaves with water and dissolved minerals. Characterized by having one main root (the taproot) from which smaller branch roots emerge. When a seed germinates, the first root to emerge is the radicle, or primary root.
[17] For digestion of fat, bile is needed. This is secreted by the -
A.
stomach
B.
pituitary gland
C.
pancreas
D.
liver
Ans:
liver
Explanation :
Bile secretion is one of the major functions of the liver, which serves two major purposes: (1) the excretion of hepatic metabolites—including bilirubin, cholesterol, drugs, and toxins—and (2) the facilitation of intestinal absorption of lipids and fat-soluble vitamins.
[18] Which is the largest gland in human body?
A.
Liver
B.
Thyroid
C.
Pituitary gland
D.
Saliatary
Ans:
Liver
Explanation :
Liver is the largest gland in human body. It is also the largest (internal) organ in our body and can weigh up to 1.5-1.6 kg for a human adult. The large size of the liver is matched by its functional complexity and involvement in a diverse array of regulatory mechanisms. It plays a major role in regulation of glycogen storage, decomposition of red blood cells, plasma protein synthesis, hormone production, and detoxification.
[19] Which organ of human body secretes Insulin?
A.
Pancreas
B.
Kidney
C.
Gall bladder
D.
Liver
Ans:
Pancreas
Explanation :
Insulin is a hormone secreted by the pancreas that is important for metabolism and utilization of energy from the ingested nutrients - especially glucose. It keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia). The pancreas is a glandular organ in the digestive system and endocrine system of vertebrates.
[20] Solar energy is converted into chemical energy during -
A.
Combustion
B.
Transition
C.
Photosynthesis
D.
Fusion
Ans:
Photosynthesis
Explanation :
Photosynthesis in plants converts radiant energy from the sun into chemical energy in the form of glucose (sugar) using electrons and protons from water. Plants take in water, carbon dioxide, and sunlight and turn them into glucose and oxygen. Water (6H2O) + Carbon Dioxide (6CO2) + Sunlight (Radiant Energy) = Glucose (C6H12O6) + Oxygen (6O2).
[21] Which one of the following is not the excretory organ?
A.
Kidneys
B.
Liver
C.
Lungs
D.
Spleen
Ans:
Spleen
Explanation :
The excretory system is a collection of organs tasked with removing excess nitrogen and other toxins from the body. Several parts of the body such as sweat glands (excretion of sweat), liver (detoxifies and breaks down chemicals, poisons and other toxins that enter the body), lungs (disposal of carbon dioxide through exhalation) and kidneys (excretion of waste through urinary system) are involved in this process. The spleen is the organ that is responsible for both the storage and purification of red blood cells.
[22] Which one of the following is an insectivorous plant?
A.
Utricularia
B.
Sequoia Gigantia
C.
Nostoc
D.
Bryophyta
Ans:
Utricularia
Explanation :
Utricularia (also called bladderworts) is a genus of carnivorous plants. They occur in fresh water and wet soil as terrestrial or aquatic species. All Utricularia are carnivorous and capture small organisms by means of bladder-like traps. Terrestrial species feed on protozoa and rotifers swimming in water saturated soil’ while aquatic species feed on water fleas (Daphnia), nematodes and even fish fry, mosquito larvae and young tadpoles.
[23] is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi.
A.
Cellulose
B.
Glycogen
C.
Pectin
D.
Chitin
Ans:
Glycogen
Explanation :
Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in humans, animals, and fungi. The polysaccharide structure represents the main storage form of glucose in the body. Glycogen is the analogue of starch, a glucose polymer that functions as energy storage in plants.
[24] Mechanism preventing interbreeding is called -
A.
Adaptation
B.
Isolation
C.
Reproduction
D.
Recombination
Ans:
Isolation
Explanation :
Because interbreeding can destroy the genetic integrity of a species, causing it to become progressively infertile or extinct, evolutionary changes in anatomy and biology developed to prevent interbreeding between species. The specific term is Reproductive Isolation, which acts to prevent some, any, or all stages of reproduction from occurring. Reproductive Isolation is very important in keeping animal species separated.
[25] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms such as bacteria. Biodegradable waste can be used for composting or a resource for heat, electricity and fuel by means of incineration or anaerobic digestion.
Explanation :
Creatinine is a chemical waste molecule that is generated from muscle metabolism. It is transported through the bloodstream to the kidneys. The kidneys filter out most of the creatinine and dispose of it in the urine. High levels of creatinine warn of possible malfunction or failure of the kidneys.
[10] Leptospirosis is a disease caused by -
A.
Virus
B.
Fungus
C.
Protozoa
D.
None
Ans:
None
Explanation :
Leptospirosis is a bacterial diseasecaused by corkscrew-shaped bacteria called Leptospira. Signs and symptoms can range from none to mild such as headaches, muscle pains, and fevers; to severe with bleeding from the lungs or meningitis. If the infection causes the person to turn yellow, have kidney failure and bleeding, it is then known as Weil’s disease.
[11] Hepatitis affects which organ of the human body?
A.
Liver
B.
Pancreas
C.
Spleen
D.
Small intestine
Ans:
Liver
Explanation :
Hepatitis refers to an inflammatory condition of the liver. It is commonly caused by a viral infection. Other causes include heavy alcohol use, certain medications, toxins, other infections, and autoimmune diseases, and non-alcoholic steatohepatitis (NASH). There are five main types of viral hepatitis: type A, B, C, D, and E.
[12] Why is Rann of Kutch of India famous for?
A.
Tidal and flats
B.
Fertile soil
C.
Dense Vegetation
D.
All are correct
Ans:
Tidal and flats
Explanation :
The Great Rann of Kutch is a seasonal salt marsh located in the Thar Desert in the Kutch District of Gujarat, India and the Sindh province of Pakistan. It is known for its marshland and mud flats, also known as tidal flats, that are coastal wetlands which form when mud is deposited by tides or rivers.
[13] Azolla increases soil fertility for -
A.
maize cultivation
B.
wheat cultivation
C.
barley cultivation
D.
rice cultivation
Ans:
rice cultivation
Explanation :
The nitrogen-fixing capability of Azolla has led to it being widely used as a biofertiliser for increasing the productivity of rice fields. When rice paddies are flooded in the spring, they can be inoculated with Azolla, which then quickly multiplies to cover the water, suppressing weeds. The rotting plant material releases nitrogen to the rice plants, increasing the rice yield equivalent to that produced by 30-60 kg N/ha.
[14] Haematopoiesis take place in -
A.
Lungs
B.
Pancreas
C.
Liver
D.
Bone marrow
Ans:
Bone marrow
Explanation :
Haematopoiesisis the formation of blood cellular components. The sites where haematopoiesis occurs change during embryonic development, but in adult mammals, the bone marrow is the major site of haematopoiesis. Haematopoietic stem cells in the bone marrow reside in a specialised microenvironment known as the hematopoietic stem cell niche, composed of osteoblasts, mesenchymal cells and sinusoidal vessels.
[15] is a hormone that regulates the amount of glucose in the blood.
A.
Glucogen
B.
Thyroxine
C.
Oxytocin
D.
Insulin
Ans:
Insulin
Explanation :
Insulin is a hormone that allows our body to use sugar (glucose) from carbohydrates in the food that we eat for energy or to store glucose for future use. Insulin helps keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia).Insulin is a peptide hormone produced by beta cells of the pancreatic islets.
[16] What is main root of plants called as?
A.
Tap root
B.
Lateral roots
C.
Fibrous roots
D.
Anchor
Ans:
Tap root
Explanation :
The root system of a plant constantly provides the stems and leaves with water and dissolved minerals. Characterized by having one main root (the taproot) from which smaller branch roots emerge. When a seed germinates, the first root to emerge is the radicle, or primary root.
[17] For digestion of fat, bile is needed. This is secreted by the -
A.
stomach
B.
pituitary gland
C.
pancreas
D.
liver
Ans:
liver
Explanation :
Bile secretion is one of the major functions of the liver, which serves two major purposes: (1) the excretion of hepatic metabolites—including bilirubin, cholesterol, drugs, and toxins—and (2) the facilitation of intestinal absorption of lipids and fat-soluble vitamins.
[18] Which is the largest gland in human body?
A.
Liver
B.
Thyroid
C.
Pituitary gland
D.
Saliatary
Ans:
Liver
Explanation :
Liver is the largest gland in human body. It is also the largest (internal) organ in our body and can weigh up to 1.5-1.6 kg for a human adult. The large size of the liver is matched by its functional complexity and involvement in a diverse array of regulatory mechanisms. It plays a major role in regulation of glycogen storage, decomposition of red blood cells, plasma protein synthesis, hormone production, and detoxification.
[19] Which organ of human body secretes Insulin?
A.
Pancreas
B.
Kidney
C.
Gall bladder
D.
Liver
Ans:
Pancreas
Explanation :
Insulin is a hormone secreted by the pancreas that is important for metabolism and utilization of energy from the ingested nutrients - especially glucose. It keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia). The pancreas is a glandular organ in the digestive system and endocrine system of vertebrates.
[20] Solar energy is converted into chemical energy during -
A.
Combustion
B.
Transition
C.
Photosynthesis
D.
Fusion
Ans:
Photosynthesis
Explanation :
Photosynthesis in plants converts radiant energy from the sun into chemical energy in the form of glucose (sugar) using electrons and protons from water. Plants take in water, carbon dioxide, and sunlight and turn them into glucose and oxygen. Water (6H2O) + Carbon Dioxide (6CO2) + Sunlight (Radiant Energy) = Glucose (C6H12O6) + Oxygen (6O2).
[21] Which one of the following is not the excretory organ?
A.
Kidneys
B.
Liver
C.
Lungs
D.
Spleen
Ans:
Spleen
Explanation :
The excretory system is a collection of organs tasked with removing excess nitrogen and other toxins from the body. Several parts of the body such as sweat glands (excretion of sweat), liver (detoxifies and breaks down chemicals, poisons and other toxins that enter the body), lungs (disposal of carbon dioxide through exhalation) and kidneys (excretion of waste through urinary system) are involved in this process. The spleen is the organ that is responsible for both the storage and purification of red blood cells.
[22] Which one of the following is an insectivorous plant?
A.
Utricularia
B.
Sequoia Gigantia
C.
Nostoc
D.
Bryophyta
Ans:
Utricularia
Explanation :
Utricularia (also called bladderworts) is a genus of carnivorous plants. They occur in fresh water and wet soil as terrestrial or aquatic species. All Utricularia are carnivorous and capture small organisms by means of bladder-like traps. Terrestrial species feed on protozoa and rotifers swimming in water saturated soil’ while aquatic species feed on water fleas (Daphnia), nematodes and even fish fry, mosquito larvae and young tadpoles.
[23] is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi.
A.
Cellulose
B.
Glycogen
C.
Pectin
D.
Chitin
Ans:
Glycogen
Explanation :
Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in humans, animals, and fungi. The polysaccharide structure represents the main storage form of glucose in the body. Glycogen is the analogue of starch, a glucose polymer that functions as energy storage in plants.
[24] Mechanism preventing interbreeding is called -
A.
Adaptation
B.
Isolation
C.
Reproduction
D.
Recombination
Ans:
Isolation
Explanation :
Because interbreeding can destroy the genetic integrity of a species, causing it to become progressively infertile or extinct, evolutionary changes in anatomy and biology developed to prevent interbreeding between species. The specific term is Reproductive Isolation, which acts to prevent some, any, or all stages of reproduction from occurring. Reproductive Isolation is very important in keeping animal species separated.
[25] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms such as bacteria. Biodegradable waste can be used for composting or a resource for heat, electricity and fuel by means of incineration or anaerobic digestion.
Explanation :
Hepatitis refers to an inflammatory condition of the liver. It is commonly caused by a viral infection. Other causes include heavy alcohol use, certain medications, toxins, other infections, and autoimmune diseases, and non-alcoholic steatohepatitis (NASH). There are five main types of viral hepatitis: type A, B, C, D, and E.
[12] Why is Rann of Kutch of India famous for?
A.
Tidal and flats
B.
Fertile soil
C.
Dense Vegetation
D.
All are correct
Ans:
Tidal and flats
Explanation :
The Great Rann of Kutch is a seasonal salt marsh located in the Thar Desert in the Kutch District of Gujarat, India and the Sindh province of Pakistan. It is known for its marshland and mud flats, also known as tidal flats, that are coastal wetlands which form when mud is deposited by tides or rivers.
[13] Azolla increases soil fertility for -
A.
maize cultivation
B.
wheat cultivation
C.
barley cultivation
D.
rice cultivation
Ans:
rice cultivation
Explanation :
The nitrogen-fixing capability of Azolla has led to it being widely used as a biofertiliser for increasing the productivity of rice fields. When rice paddies are flooded in the spring, they can be inoculated with Azolla, which then quickly multiplies to cover the water, suppressing weeds. The rotting plant material releases nitrogen to the rice plants, increasing the rice yield equivalent to that produced by 30-60 kg N/ha.
[14] Haematopoiesis take place in -
A.
Lungs
B.
Pancreas
C.
Liver
D.
Bone marrow
Ans:
Bone marrow
Explanation :
Haematopoiesisis the formation of blood cellular components. The sites where haematopoiesis occurs change during embryonic development, but in adult mammals, the bone marrow is the major site of haematopoiesis. Haematopoietic stem cells in the bone marrow reside in a specialised microenvironment known as the hematopoietic stem cell niche, composed of osteoblasts, mesenchymal cells and sinusoidal vessels.
[15] is a hormone that regulates the amount of glucose in the blood.
A.
Glucogen
B.
Thyroxine
C.
Oxytocin
D.
Insulin
Ans:
Insulin
Explanation :
Insulin is a hormone that allows our body to use sugar (glucose) from carbohydrates in the food that we eat for energy or to store glucose for future use. Insulin helps keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia).Insulin is a peptide hormone produced by beta cells of the pancreatic islets.
[16] What is main root of plants called as?
A.
Tap root
B.
Lateral roots
C.
Fibrous roots
D.
Anchor
Ans:
Tap root
Explanation :
The root system of a plant constantly provides the stems and leaves with water and dissolved minerals. Characterized by having one main root (the taproot) from which smaller branch roots emerge. When a seed germinates, the first root to emerge is the radicle, or primary root.
[17] For digestion of fat, bile is needed. This is secreted by the -
A.
stomach
B.
pituitary gland
C.
pancreas
D.
liver
Ans:
liver
Explanation :
Bile secretion is one of the major functions of the liver, which serves two major purposes: (1) the excretion of hepatic metabolites—including bilirubin, cholesterol, drugs, and toxins—and (2) the facilitation of intestinal absorption of lipids and fat-soluble vitamins.
[18] Which is the largest gland in human body?
A.
Liver
B.
Thyroid
C.
Pituitary gland
D.
Saliatary
Ans:
Liver
Explanation :
Liver is the largest gland in human body. It is also the largest (internal) organ in our body and can weigh up to 1.5-1.6 kg for a human adult. The large size of the liver is matched by its functional complexity and involvement in a diverse array of regulatory mechanisms. It plays a major role in regulation of glycogen storage, decomposition of red blood cells, plasma protein synthesis, hormone production, and detoxification.
[19] Which organ of human body secretes Insulin?
A.
Pancreas
B.
Kidney
C.
Gall bladder
D.
Liver
Ans:
Pancreas
Explanation :
Insulin is a hormone secreted by the pancreas that is important for metabolism and utilization of energy from the ingested nutrients - especially glucose. It keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia). The pancreas is a glandular organ in the digestive system and endocrine system of vertebrates.
[20] Solar energy is converted into chemical energy during -
A.
Combustion
B.
Transition
C.
Photosynthesis
D.
Fusion
Ans:
Photosynthesis
Explanation :
Photosynthesis in plants converts radiant energy from the sun into chemical energy in the form of glucose (sugar) using electrons and protons from water. Plants take in water, carbon dioxide, and sunlight and turn them into glucose and oxygen. Water (6H2O) + Carbon Dioxide (6CO2) + Sunlight (Radiant Energy) = Glucose (C6H12O6) + Oxygen (6O2).
[21] Which one of the following is not the excretory organ?
A.
Kidneys
B.
Liver
C.
Lungs
D.
Spleen
Ans:
Spleen
Explanation :
The excretory system is a collection of organs tasked with removing excess nitrogen and other toxins from the body. Several parts of the body such as sweat glands (excretion of sweat), liver (detoxifies and breaks down chemicals, poisons and other toxins that enter the body), lungs (disposal of carbon dioxide through exhalation) and kidneys (excretion of waste through urinary system) are involved in this process. The spleen is the organ that is responsible for both the storage and purification of red blood cells.
[22] Which one of the following is an insectivorous plant?
A.
Utricularia
B.
Sequoia Gigantia
C.
Nostoc
D.
Bryophyta
Ans:
Utricularia
Explanation :
Utricularia (also called bladderworts) is a genus of carnivorous plants. They occur in fresh water and wet soil as terrestrial or aquatic species. All Utricularia are carnivorous and capture small organisms by means of bladder-like traps. Terrestrial species feed on protozoa and rotifers swimming in water saturated soil’ while aquatic species feed on water fleas (Daphnia), nematodes and even fish fry, mosquito larvae and young tadpoles.
[23] is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi.
A.
Cellulose
B.
Glycogen
C.
Pectin
D.
Chitin
Ans:
Glycogen
Explanation :
Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in humans, animals, and fungi. The polysaccharide structure represents the main storage form of glucose in the body. Glycogen is the analogue of starch, a glucose polymer that functions as energy storage in plants.
[24] Mechanism preventing interbreeding is called -
A.
Adaptation
B.
Isolation
C.
Reproduction
D.
Recombination
Ans:
Isolation
Explanation :
Because interbreeding can destroy the genetic integrity of a species, causing it to become progressively infertile or extinct, evolutionary changes in anatomy and biology developed to prevent interbreeding between species. The specific term is Reproductive Isolation, which acts to prevent some, any, or all stages of reproduction from occurring. Reproductive Isolation is very important in keeping animal species separated.
[25] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms such as bacteria. Biodegradable waste can be used for composting or a resource for heat, electricity and fuel by means of incineration or anaerobic digestion.
Explanation :
The nitrogen-fixing capability of Azolla has led to it being widely used as a biofertiliser for increasing the productivity of rice fields. When rice paddies are flooded in the spring, they can be inoculated with Azolla, which then quickly multiplies to cover the water, suppressing weeds. The rotting plant material releases nitrogen to the rice plants, increasing the rice yield equivalent to that produced by 30-60 kg N/ha.
[14] Haematopoiesis take place in -
A.
Lungs
B.
Pancreas
C.
Liver
D.
Bone marrow
Ans:
Bone marrow
Explanation :
Haematopoiesisis the formation of blood cellular components. The sites where haematopoiesis occurs change during embryonic development, but in adult mammals, the bone marrow is the major site of haematopoiesis. Haematopoietic stem cells in the bone marrow reside in a specialised microenvironment known as the hematopoietic stem cell niche, composed of osteoblasts, mesenchymal cells and sinusoidal vessels.
[15] is a hormone that regulates the amount of glucose in the blood.
A.
Glucogen
B.
Thyroxine
C.
Oxytocin
D.
Insulin
Ans:
Insulin
Explanation :
Insulin is a hormone that allows our body to use sugar (glucose) from carbohydrates in the food that we eat for energy or to store glucose for future use. Insulin helps keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia).Insulin is a peptide hormone produced by beta cells of the pancreatic islets.
[16] What is main root of plants called as?
A.
Tap root
B.
Lateral roots
C.
Fibrous roots
D.
Anchor
Ans:
Tap root
Explanation :
The root system of a plant constantly provides the stems and leaves with water and dissolved minerals. Characterized by having one main root (the taproot) from which smaller branch roots emerge. When a seed germinates, the first root to emerge is the radicle, or primary root.
[17] For digestion of fat, bile is needed. This is secreted by the -
A.
stomach
B.
pituitary gland
C.
pancreas
D.
liver
Ans:
liver
Explanation :
Bile secretion is one of the major functions of the liver, which serves two major purposes: (1) the excretion of hepatic metabolites—including bilirubin, cholesterol, drugs, and toxins—and (2) the facilitation of intestinal absorption of lipids and fat-soluble vitamins.
[18] Which is the largest gland in human body?
A.
Liver
B.
Thyroid
C.
Pituitary gland
D.
Saliatary
Ans:
Liver
Explanation :
Liver is the largest gland in human body. It is also the largest (internal) organ in our body and can weigh up to 1.5-1.6 kg for a human adult. The large size of the liver is matched by its functional complexity and involvement in a diverse array of regulatory mechanisms. It plays a major role in regulation of glycogen storage, decomposition of red blood cells, plasma protein synthesis, hormone production, and detoxification.
[19] Which organ of human body secretes Insulin?
A.
Pancreas
B.
Kidney
C.
Gall bladder
D.
Liver
Ans:
Pancreas
Explanation :
Insulin is a hormone secreted by the pancreas that is important for metabolism and utilization of energy from the ingested nutrients - especially glucose. It keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia). The pancreas is a glandular organ in the digestive system and endocrine system of vertebrates.
[20] Solar energy is converted into chemical energy during -
A.
Combustion
B.
Transition
C.
Photosynthesis
D.
Fusion
Ans:
Photosynthesis
Explanation :
Photosynthesis in plants converts radiant energy from the sun into chemical energy in the form of glucose (sugar) using electrons and protons from water. Plants take in water, carbon dioxide, and sunlight and turn them into glucose and oxygen. Water (6H2O) + Carbon Dioxide (6CO2) + Sunlight (Radiant Energy) = Glucose (C6H12O6) + Oxygen (6O2).
[21] Which one of the following is not the excretory organ?
A.
Kidneys
B.
Liver
C.
Lungs
D.
Spleen
Ans:
Spleen
Explanation :
The excretory system is a collection of organs tasked with removing excess nitrogen and other toxins from the body. Several parts of the body such as sweat glands (excretion of sweat), liver (detoxifies and breaks down chemicals, poisons and other toxins that enter the body), lungs (disposal of carbon dioxide through exhalation) and kidneys (excretion of waste through urinary system) are involved in this process. The spleen is the organ that is responsible for both the storage and purification of red blood cells.
[22] Which one of the following is an insectivorous plant?
A.
Utricularia
B.
Sequoia Gigantia
C.
Nostoc
D.
Bryophyta
Ans:
Utricularia
Explanation :
Utricularia (also called bladderworts) is a genus of carnivorous plants. They occur in fresh water and wet soil as terrestrial or aquatic species. All Utricularia are carnivorous and capture small organisms by means of bladder-like traps. Terrestrial species feed on protozoa and rotifers swimming in water saturated soil’ while aquatic species feed on water fleas (Daphnia), nematodes and even fish fry, mosquito larvae and young tadpoles.
[23] is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi.
A.
Cellulose
B.
Glycogen
C.
Pectin
D.
Chitin
Ans:
Glycogen
Explanation :
Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in humans, animals, and fungi. The polysaccharide structure represents the main storage form of glucose in the body. Glycogen is the analogue of starch, a glucose polymer that functions as energy storage in plants.
[24] Mechanism preventing interbreeding is called -
A.
Adaptation
B.
Isolation
C.
Reproduction
D.
Recombination
Ans:
Isolation
Explanation :
Because interbreeding can destroy the genetic integrity of a species, causing it to become progressively infertile or extinct, evolutionary changes in anatomy and biology developed to prevent interbreeding between species. The specific term is Reproductive Isolation, which acts to prevent some, any, or all stages of reproduction from occurring. Reproductive Isolation is very important in keeping animal species separated.
[25] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms such as bacteria. Biodegradable waste can be used for composting or a resource for heat, electricity and fuel by means of incineration or anaerobic digestion.
Explanation :
Insulin is a hormone that allows our body to use sugar (glucose) from carbohydrates in the food that we eat for energy or to store glucose for future use. Insulin helps keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia).Insulin is a peptide hormone produced by beta cells of the pancreatic islets.
[16] What is main root of plants called as?
A.
Tap root
B.
Lateral roots
C.
Fibrous roots
D.
Anchor
Ans:
Tap root
Explanation :
The root system of a plant constantly provides the stems and leaves with water and dissolved minerals. Characterized by having one main root (the taproot) from which smaller branch roots emerge. When a seed germinates, the first root to emerge is the radicle, or primary root.
[17] For digestion of fat, bile is needed. This is secreted by the -
A.
stomach
B.
pituitary gland
C.
pancreas
D.
liver
Ans:
liver
Explanation :
Bile secretion is one of the major functions of the liver, which serves two major purposes: (1) the excretion of hepatic metabolites—including bilirubin, cholesterol, drugs, and toxins—and (2) the facilitation of intestinal absorption of lipids and fat-soluble vitamins.
[18] Which is the largest gland in human body?
A.
Liver
B.
Thyroid
C.
Pituitary gland
D.
Saliatary
Ans:
Liver
Explanation :
Liver is the largest gland in human body. It is also the largest (internal) organ in our body and can weigh up to 1.5-1.6 kg for a human adult. The large size of the liver is matched by its functional complexity and involvement in a diverse array of regulatory mechanisms. It plays a major role in regulation of glycogen storage, decomposition of red blood cells, plasma protein synthesis, hormone production, and detoxification.
[19] Which organ of human body secretes Insulin?
A.
Pancreas
B.
Kidney
C.
Gall bladder
D.
Liver
Ans:
Pancreas
Explanation :
Insulin is a hormone secreted by the pancreas that is important for metabolism and utilization of energy from the ingested nutrients - especially glucose. It keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia). The pancreas is a glandular organ in the digestive system and endocrine system of vertebrates.
[20] Solar energy is converted into chemical energy during -
A.
Combustion
B.
Transition
C.
Photosynthesis
D.
Fusion
Ans:
Photosynthesis
Explanation :
Photosynthesis in plants converts radiant energy from the sun into chemical energy in the form of glucose (sugar) using electrons and protons from water. Plants take in water, carbon dioxide, and sunlight and turn them into glucose and oxygen. Water (6H2O) + Carbon Dioxide (6CO2) + Sunlight (Radiant Energy) = Glucose (C6H12O6) + Oxygen (6O2).
[21] Which one of the following is not the excretory organ?
A.
Kidneys
B.
Liver
C.
Lungs
D.
Spleen
Ans:
Spleen
Explanation :
The excretory system is a collection of organs tasked with removing excess nitrogen and other toxins from the body. Several parts of the body such as sweat glands (excretion of sweat), liver (detoxifies and breaks down chemicals, poisons and other toxins that enter the body), lungs (disposal of carbon dioxide through exhalation) and kidneys (excretion of waste through urinary system) are involved in this process. The spleen is the organ that is responsible for both the storage and purification of red blood cells.
[22] Which one of the following is an insectivorous plant?
A.
Utricularia
B.
Sequoia Gigantia
C.
Nostoc
D.
Bryophyta
Ans:
Utricularia
Explanation :
Utricularia (also called bladderworts) is a genus of carnivorous plants. They occur in fresh water and wet soil as terrestrial or aquatic species. All Utricularia are carnivorous and capture small organisms by means of bladder-like traps. Terrestrial species feed on protozoa and rotifers swimming in water saturated soil’ while aquatic species feed on water fleas (Daphnia), nematodes and even fish fry, mosquito larvae and young tadpoles.
[23] is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi.
A.
Cellulose
B.
Glycogen
C.
Pectin
D.
Chitin
Ans:
Glycogen
Explanation :
Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in humans, animals, and fungi. The polysaccharide structure represents the main storage form of glucose in the body. Glycogen is the analogue of starch, a glucose polymer that functions as energy storage in plants.
[24] Mechanism preventing interbreeding is called -
A.
Adaptation
B.
Isolation
C.
Reproduction
D.
Recombination
Ans:
Isolation
Explanation :
Because interbreeding can destroy the genetic integrity of a species, causing it to become progressively infertile or extinct, evolutionary changes in anatomy and biology developed to prevent interbreeding between species. The specific term is Reproductive Isolation, which acts to prevent some, any, or all stages of reproduction from occurring. Reproductive Isolation is very important in keeping animal species separated.
[25] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms such as bacteria. Biodegradable waste can be used for composting or a resource for heat, electricity and fuel by means of incineration or anaerobic digestion.
Explanation :
Bile secretion is one of the major functions of the liver, which serves two major purposes: (1) the excretion of hepatic metabolites—including bilirubin, cholesterol, drugs, and toxins—and (2) the facilitation of intestinal absorption of lipids and fat-soluble vitamins.
[18] Which is the largest gland in human body?
A.
Liver
B.
Thyroid
C.
Pituitary gland
D.
Saliatary
Ans:
Liver
Explanation :
Liver is the largest gland in human body. It is also the largest (internal) organ in our body and can weigh up to 1.5-1.6 kg for a human adult. The large size of the liver is matched by its functional complexity and involvement in a diverse array of regulatory mechanisms. It plays a major role in regulation of glycogen storage, decomposition of red blood cells, plasma protein synthesis, hormone production, and detoxification.
[19] Which organ of human body secretes Insulin?
A.
Pancreas
B.
Kidney
C.
Gall bladder
D.
Liver
Ans:
Pancreas
Explanation :
Insulin is a hormone secreted by the pancreas that is important for metabolism and utilization of energy from the ingested nutrients - especially glucose. It keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia). The pancreas is a glandular organ in the digestive system and endocrine system of vertebrates.
[20] Solar energy is converted into chemical energy during -
A.
Combustion
B.
Transition
C.
Photosynthesis
D.
Fusion
Ans:
Photosynthesis
Explanation :
Photosynthesis in plants converts radiant energy from the sun into chemical energy in the form of glucose (sugar) using electrons and protons from water. Plants take in water, carbon dioxide, and sunlight and turn them into glucose and oxygen. Water (6H2O) + Carbon Dioxide (6CO2) + Sunlight (Radiant Energy) = Glucose (C6H12O6) + Oxygen (6O2).
[21] Which one of the following is not the excretory organ?
A.
Kidneys
B.
Liver
C.
Lungs
D.
Spleen
Ans:
Spleen
Explanation :
The excretory system is a collection of organs tasked with removing excess nitrogen and other toxins from the body. Several parts of the body such as sweat glands (excretion of sweat), liver (detoxifies and breaks down chemicals, poisons and other toxins that enter the body), lungs (disposal of carbon dioxide through exhalation) and kidneys (excretion of waste through urinary system) are involved in this process. The spleen is the organ that is responsible for both the storage and purification of red blood cells.
[22] Which one of the following is an insectivorous plant?
A.
Utricularia
B.
Sequoia Gigantia
C.
Nostoc
D.
Bryophyta
Ans:
Utricularia
Explanation :
Utricularia (also called bladderworts) is a genus of carnivorous plants. They occur in fresh water and wet soil as terrestrial or aquatic species. All Utricularia are carnivorous and capture small organisms by means of bladder-like traps. Terrestrial species feed on protozoa and rotifers swimming in water saturated soil’ while aquatic species feed on water fleas (Daphnia), nematodes and even fish fry, mosquito larvae and young tadpoles.
[23] is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi.
A.
Cellulose
B.
Glycogen
C.
Pectin
D.
Chitin
Ans:
Glycogen
Explanation :
Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in humans, animals, and fungi. The polysaccharide structure represents the main storage form of glucose in the body. Glycogen is the analogue of starch, a glucose polymer that functions as energy storage in plants.
[24] Mechanism preventing interbreeding is called -
A.
Adaptation
B.
Isolation
C.
Reproduction
D.
Recombination
Ans:
Isolation
Explanation :
Because interbreeding can destroy the genetic integrity of a species, causing it to become progressively infertile or extinct, evolutionary changes in anatomy and biology developed to prevent interbreeding between species. The specific term is Reproductive Isolation, which acts to prevent some, any, or all stages of reproduction from occurring. Reproductive Isolation is very important in keeping animal species separated.
[25] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms such as bacteria. Biodegradable waste can be used for composting or a resource for heat, electricity and fuel by means of incineration or anaerobic digestion.
Explanation :
Insulin is a hormone secreted by the pancreas that is important for metabolism and utilization of energy from the ingested nutrients - especially glucose. It keeps our blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia). The pancreas is a glandular organ in the digestive system and endocrine system of vertebrates.
[20] Solar energy is converted into chemical energy during -
A.
Combustion
B.
Transition
C.
Photosynthesis
D.
Fusion
Ans:
Photosynthesis
Explanation :
Photosynthesis in plants converts radiant energy from the sun into chemical energy in the form of glucose (sugar) using electrons and protons from water. Plants take in water, carbon dioxide, and sunlight and turn them into glucose and oxygen. Water (6H2O) + Carbon Dioxide (6CO2) + Sunlight (Radiant Energy) = Glucose (C6H12O6) + Oxygen (6O2).
[21] Which one of the following is not the excretory organ?
A.
Kidneys
B.
Liver
C.
Lungs
D.
Spleen
Ans:
Spleen
Explanation :
The excretory system is a collection of organs tasked with removing excess nitrogen and other toxins from the body. Several parts of the body such as sweat glands (excretion of sweat), liver (detoxifies and breaks down chemicals, poisons and other toxins that enter the body), lungs (disposal of carbon dioxide through exhalation) and kidneys (excretion of waste through urinary system) are involved in this process. The spleen is the organ that is responsible for both the storage and purification of red blood cells.
[22] Which one of the following is an insectivorous plant?
A.
Utricularia
B.
Sequoia Gigantia
C.
Nostoc
D.
Bryophyta
Ans:
Utricularia
Explanation :
Utricularia (also called bladderworts) is a genus of carnivorous plants. They occur in fresh water and wet soil as terrestrial or aquatic species. All Utricularia are carnivorous and capture small organisms by means of bladder-like traps. Terrestrial species feed on protozoa and rotifers swimming in water saturated soil’ while aquatic species feed on water fleas (Daphnia), nematodes and even fish fry, mosquito larvae and young tadpoles.
[23] is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi.
A.
Cellulose
B.
Glycogen
C.
Pectin
D.
Chitin
Ans:
Glycogen
Explanation :
Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in humans, animals, and fungi. The polysaccharide structure represents the main storage form of glucose in the body. Glycogen is the analogue of starch, a glucose polymer that functions as energy storage in plants.
[24] Mechanism preventing interbreeding is called -
A.
Adaptation
B.
Isolation
C.
Reproduction
D.
Recombination
Ans:
Isolation
Explanation :
Because interbreeding can destroy the genetic integrity of a species, causing it to become progressively infertile or extinct, evolutionary changes in anatomy and biology developed to prevent interbreeding between species. The specific term is Reproductive Isolation, which acts to prevent some, any, or all stages of reproduction from occurring. Reproductive Isolation is very important in keeping animal species separated.
[25] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms such as bacteria. Biodegradable waste can be used for composting or a resource for heat, electricity and fuel by means of incineration or anaerobic digestion.
Explanation :
The excretory system is a collection of organs tasked with removing excess nitrogen and other toxins from the body. Several parts of the body such as sweat glands (excretion of sweat), liver (detoxifies and breaks down chemicals, poisons and other toxins that enter the body), lungs (disposal of carbon dioxide through exhalation) and kidneys (excretion of waste through urinary system) are involved in this process. The spleen is the organ that is responsible for both the storage and purification of red blood cells.
[22] Which one of the following is an insectivorous plant?
A.
Utricularia
B.
Sequoia Gigantia
C.
Nostoc
D.
Bryophyta
Ans:
Utricularia
Explanation :
Utricularia (also called bladderworts) is a genus of carnivorous plants. They occur in fresh water and wet soil as terrestrial or aquatic species. All Utricularia are carnivorous and capture small organisms by means of bladder-like traps. Terrestrial species feed on protozoa and rotifers swimming in water saturated soil’ while aquatic species feed on water fleas (Daphnia), nematodes and even fish fry, mosquito larvae and young tadpoles.
[23] is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi.
A.
Cellulose
B.
Glycogen
C.
Pectin
D.
Chitin
Ans:
Glycogen
Explanation :
Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in humans, animals, and fungi. The polysaccharide structure represents the main storage form of glucose in the body. Glycogen is the analogue of starch, a glucose polymer that functions as energy storage in plants.
[24] Mechanism preventing interbreeding is called -
A.
Adaptation
B.
Isolation
C.
Reproduction
D.
Recombination
Ans:
Isolation
Explanation :
Because interbreeding can destroy the genetic integrity of a species, causing it to become progressively infertile or extinct, evolutionary changes in anatomy and biology developed to prevent interbreeding between species. The specific term is Reproductive Isolation, which acts to prevent some, any, or all stages of reproduction from occurring. Reproductive Isolation is very important in keeping animal species separated.
[25] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms such as bacteria. Biodegradable waste can be used for composting or a resource for heat, electricity and fuel by means of incineration or anaerobic digestion.
Explanation :
Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in humans, animals, and fungi. The polysaccharide structure represents the main storage form of glucose in the body. Glycogen is the analogue of starch, a glucose polymer that functions as energy storage in plants.
[24] Mechanism preventing interbreeding is called -
A.
Adaptation
B.
Isolation
C.
Reproduction
D.
Recombination
Ans:
Isolation
Explanation :
Because interbreeding can destroy the genetic integrity of a species, causing it to become progressively infertile or extinct, evolutionary changes in anatomy and biology developed to prevent interbreeding between species. The specific term is Reproductive Isolation, which acts to prevent some, any, or all stages of reproduction from occurring. Reproductive Isolation is very important in keeping animal species separated.
[25] Biodegradable wastes can usually be converted into useful substances with the help of -
A.
Bacteria
B.
Nuclear proteins
C.
Radioactive substances
D.
Viruses
Ans:
Bacteria
Explanation :
Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms such as bacteria. Biodegradable waste can be used for composting or a resource for heat, electricity and fuel by means of incineration or anaerobic digestion.
Explanation :
Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms such as bacteria. Biodegradable waste can be used for composting or a resource for heat, electricity and fuel by means of incineration or anaerobic digestion.