[1] Hypothermia occurs due to loss of excessive heat from body due to sudden low body temperature in:
A.
Frogs
B.
Human beings
C.
Lizards
D.
Snakes
Ans:
Human beings
Explanation :
Normal human body temperature in adults is 34.4-37.8 °C. Sometimes a narrower range is stated, such as 36.5-37.5 °C. Hypothermia is defined as any body temperature below 35.0 °C.
[2] The disease that has been eradicated from the world is:
A.
Leprosy
B.
Poliomyelitis
C.
Chicken pox
D.
Small pox
Ans:
Small pox
Explanation :
Eight attempts have been made to date to eradicate infectious diseases. Two successful programs targeted smallpox and rinderpest. The last naturally occurring case of smallpox (Variola minor) was diagnosed on 26 October, 1977.
[3] Protein part of enzyme is know as -
A.
Isoenzyme
B.
Holoenzyme
C.
Apoenzyme
D.
All the above
Ans:
Apoenzyme
Explanation :
Enzymes are defined as biological catalysts. Chemically all enzymes are globular proteins. Each enzyme catalyses only one chemical reaction. Protein part of enzyme is known as Apoenzyme.
[4] Time required for the organism to eliminate 50% the total body burden or tissue concentration of chemical is referred as -
A.
Threshold limit time
B.
Halftime life
C.
Residual-period
D.
Half-life period
Ans:
Half-life period
Explanation :
Time required for the organism to eliminate 50 per cent of the total body burden or tissue concentration of chemical is referred to as Half Life Period.
[5] The sum of genes in a population is called -
A.
Phenotype
B.
Karyotype
C.
Genotype
D.
Gene pool
Ans:
Gene pool
Explanation :
Phenotype refers to a set of observable characteristics of an individual or group resulting from the interaction of its genotype with its environment. Gene pool refers to the stock of different genes in an interbreeding population.
[6] 'Plague' is caused by .
A.
Bacteria
B.
Protozoa
C.
Virus
D.
All of the above
Ans:
Bacteria
Explanation :
Plague is caused by Bacteria. It is a deadly infectious disease caused by the enterobacteria yersinia pestis, named after the French- Swiss bacteriologist Alexander Yersin.
[7] Growing more than one crop on a piece of land during the year is known as -
A.
Uni cropping
B.
Multiple cropping
C.
Double cropping
D.
niple cropping
Ans:
Multiple cropping
Explanation :
Multiple cropping refers to growing more than one crop on the same field during the season. This technique makes effective use of inputs such as soil, water, fertiliser etc. Thus output per unit area increases with manifold returns to the growers.
[8] Immunisation is a phenomenon of formation of antibodies by using inactive -
A.
Antigens
B.
Antibodies
C.
Chemicals
D.
Blood
Ans:
Antigens
Explanation :
Whenever an antigen enters the blood, it binds itself with a special kind of white blood cell called lymphocyte. Each Lymphocyte produces only one kind of antibody.
[9] Which one of the following is an indicator of air pollution?
A.
Cycas
B.
Algae
C.
Bryophytes
D.
Lichens
Ans:
Lichens
Explanation :
Lichens are an indicator of air pollution.
[10] Symptoms of Jaundice occur mainly due to disorder and malfunction of -
A.
Intestine
B.
Liver
C.
Stomach
D.
Pancreas
Ans:
Liver
Explanation :
Jaundice is also called as icterus in some parts of the world. The condition is mostly the effect of some sort of malfunction pertaining to the liver or the bile ducts causing a problem in the removal of bilirubin from the bloodstream.
[11] Which of the plant products is used in leather industry?
A.
Resin
B.
Mucilage
C.
Latex
D.
Tannin
Ans:
Tannin
Explanation :
A tannin is an astringent, bitter plant polyphenolic compound that binds to and precipitates proteins and various other organic compounds including amino acids and alkaloids. It refers to the use of wood tannins from oak in tanning animal hides into leather; hence the words "tan" and "tanning" for the treatment of leather. Oak bark, mimosa, chestnut and quebracho tree have traditionally been the primary source of tannery tannin, though inorganic tanning agents are also in use today and account for 90% of the world's leather production
[12] Cooking oil can be converted into vegetable ghee by the process of -
A.
oxidation
B.
hydrogenation
C.
distillation
D.
crystalisation
Ans:
hydrogenation
Explanation :
An example of an alkene addition reaction is a process called hydrogenation. In a hydrogenation reaction, two hydrogen atoms are added across the double bond of an alkene, resulting in a saturated alkane.
[13] Which of the following is a good source of Vitamin 'E'?
A.
Me
B.
Ghee
C.
Yellow Yolk
D.
Fresh Vegetables
Ans:
Fresh Vegetables
Explanation :
Vitamin E refers to a group of eight fat-soluble compounds that include both tocopherols and tocotrienols. Numerous foods provide vitamin E. Nuts, seeds, and vegetable oils are among the best sources of alpha-tocopherol, and significant amounts are available in green leafy vegetables and fortified cereals.
[14] Penicillin is isolated from :
A.
Fungi
B.
Algae
C.
Virus
D.
Bacteria
Ans:
Fungi
Explanation :
Penicillin is one of the first and still one of the most widely used antibiotic agents - derived from the Penicillium mold (fungi). Penicillin kills bacteria by interfering with the ability to synthesize cell wall.
[15] Insulin for Diabetes is invented by -
A.
Edward Jenner
B.
Alexander Fleming
C.
E.F. Banting
D.
Hoffiman
Ans:
E.F. Banting
Explanation :
First use of insulin in treatment of diabetes on this day in 1922. On 11 January 1922 insulin was first used in the treatment of diabetes Insulin was discovered by Sir Frederick G Banting.
[16] What is the term used for the process of pollination by birds?
A.
Embryophily
B.
Ornithophily
C.
Entomophily
D.
Hydrophily
Ans:
Ornithophily
Explanation :
Ornithophily or bird pollination is the pollination of flowering plants by birds. This coevolutionary association is derived from insect pollination (entomophily) and is particularly well developed in some parts of the world, especially in the tropics and on some island chains.
[17] Which one of the following organs excretes water, fat and various catabolic wastes?
A.
Kidney
B.
Skin
C.
Spleen
D.
Salivary glands
Ans:
Kidney
Explanation :
The kidneys are essential in the urinary system and also serve homeostatic functions such as the regulation of electrolytes, maintenance of acid-base balance, and regulation of blood pressure (via maintaining salt and water balance). They serve the body as a natural filter of the blood, and remove wastes which are diverted to the urinary bladder.
[18] The trace metal present in insulin is -
A.
iron
B.
zinc
C.
cobalt
D.
manganese
Ans:
zinc
Explanation :
Trace elements play important role in Insulin metabolism. The relationship between diabetes, insulin and zinc (Zn) is complex with no clear cause and effect relationships. Several of the complications of diabetes may be related to increased intracellular oxidants and free radicals associated with decreases in intracellular Zn and in Zn dependent antioxidant enzymes.
[19] Male mosquitoes -
A.
Suck blood
B.
Feed on plant juices
C.
Spread encephalitis
D.
Spread malaria
Ans:
Feed on plant juices
Explanation :
Typically, both male and female mosquitoes feed on nectar and plant juices, but in many species the mouthparts of the females are adapted for piercing the skin of animal hosts and sucking their blood as ectoparasites.
[20] Where is the Pineal Gland situated?
A.
in the Liver
B.
in the Brain
C.
in the Kidneys
D.
in the Uterus
Ans:
in the Brain
Explanation :
The pineal gland is a small endocrine gland in the vertebrate brain. It produces the serotonin derivative melatonin, a hormone that affects the modulation of wake/sleep patterns and, seasonal functions. Its shape resembles a tiny pine cone (hence its name), and it is located near the centre of the brain.
[21] Which of the following cells secrete insulin?
A.
Alpha cells
B.
Delta cells
C.
Nerve cells
D.
Beta cells
Ans:
Beta cells
Explanation :
Insulin is a hormone that is exclusively produced by pancreatic beta cells. Beta cells are located in the pancreas in clusters known as the islets of Langerhans. When the beta cell is appropriately stimulated, insulin is secreted from the cell by exocytosis and diffuses into islet capillary blood.
[22] In the human body, fats are stored in the -
A.
Epidermis
B.
Adipose tissue
C.
Liver
D.
Epithelium
Ans:
Adipose tissue
Explanation :
In humans, adipose tissue is located: beneath the skin (subcutaneous fat), around internal organs (visceral fat), in bone marrow (yellow bone marrow), intermuscular (Muscular system) and in the breast (breast tissue). Adipose tissue is found in specific locations, which are referred to as adipose depots.
[23] Blood pressure is measured with:
A.
Thermometer
B.
Barometer
C.
Sphygmomanometer
D.
Lactometer
Ans:
Sphygmomanometer
Explanation :
A sphygmomanometer, also known as a blood pressure meter, blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure. A sphygmomanometer has three parts: a cuff that can be inflated with air, a pressure meter (manometer) for measuring air pressure in the cuff, and a stethoscope for listening to the sound the blood makes as it flows through the brachial artery (the major artery found in your upper arm).
[24] The reagent used to test the presence of starch in leaves is -
A.
Fehling's solution
B.
Iodine solution
C.
Million's reagent
D.
Benedict's solution
Ans:
Iodine solution
Explanation :
The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black color.
[25] Malaria can be cured with a drug extracted from -
A.
Belladonna tree
B.
Cinchona tree
C.
Oak tree
D.
Neem tree
Ans:
Cinchona tree
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
Explanation :
Normal human body temperature in adults is 34.4-37.8 °C. Sometimes a narrower range is stated, such as 36.5-37.5 °C. Hypothermia is defined as any body temperature below 35.0 °C.
[2] The disease that has been eradicated from the world is:
A.
Leprosy
B.
Poliomyelitis
C.
Chicken pox
D.
Small pox
Ans:
Small pox
Explanation :
Eight attempts have been made to date to eradicate infectious diseases. Two successful programs targeted smallpox and rinderpest. The last naturally occurring case of smallpox (Variola minor) was diagnosed on 26 October, 1977.
[3] Protein part of enzyme is know as -
A.
Isoenzyme
B.
Holoenzyme
C.
Apoenzyme
D.
All the above
Ans:
Apoenzyme
Explanation :
Enzymes are defined as biological catalysts. Chemically all enzymes are globular proteins. Each enzyme catalyses only one chemical reaction. Protein part of enzyme is known as Apoenzyme.
[4] Time required for the organism to eliminate 50% the total body burden or tissue concentration of chemical is referred as -
A.
Threshold limit time
B.
Halftime life
C.
Residual-period
D.
Half-life period
Ans:
Half-life period
Explanation :
Time required for the organism to eliminate 50 per cent of the total body burden or tissue concentration of chemical is referred to as Half Life Period.
[5] The sum of genes in a population is called -
A.
Phenotype
B.
Karyotype
C.
Genotype
D.
Gene pool
Ans:
Gene pool
Explanation :
Phenotype refers to a set of observable characteristics of an individual or group resulting from the interaction of its genotype with its environment. Gene pool refers to the stock of different genes in an interbreeding population.
[6] 'Plague' is caused by .
A.
Bacteria
B.
Protozoa
C.
Virus
D.
All of the above
Ans:
Bacteria
Explanation :
Plague is caused by Bacteria. It is a deadly infectious disease caused by the enterobacteria yersinia pestis, named after the French- Swiss bacteriologist Alexander Yersin.
[7] Growing more than one crop on a piece of land during the year is known as -
A.
Uni cropping
B.
Multiple cropping
C.
Double cropping
D.
niple cropping
Ans:
Multiple cropping
Explanation :
Multiple cropping refers to growing more than one crop on the same field during the season. This technique makes effective use of inputs such as soil, water, fertiliser etc. Thus output per unit area increases with manifold returns to the growers.
[8] Immunisation is a phenomenon of formation of antibodies by using inactive -
A.
Antigens
B.
Antibodies
C.
Chemicals
D.
Blood
Ans:
Antigens
Explanation :
Whenever an antigen enters the blood, it binds itself with a special kind of white blood cell called lymphocyte. Each Lymphocyte produces only one kind of antibody.
[9] Which one of the following is an indicator of air pollution?
A.
Cycas
B.
Algae
C.
Bryophytes
D.
Lichens
Ans:
Lichens
Explanation :
Lichens are an indicator of air pollution.
[10] Symptoms of Jaundice occur mainly due to disorder and malfunction of -
A.
Intestine
B.
Liver
C.
Stomach
D.
Pancreas
Ans:
Liver
Explanation :
Jaundice is also called as icterus in some parts of the world. The condition is mostly the effect of some sort of malfunction pertaining to the liver or the bile ducts causing a problem in the removal of bilirubin from the bloodstream.
[11] Which of the plant products is used in leather industry?
A.
Resin
B.
Mucilage
C.
Latex
D.
Tannin
Ans:
Tannin
Explanation :
A tannin is an astringent, bitter plant polyphenolic compound that binds to and precipitates proteins and various other organic compounds including amino acids and alkaloids. It refers to the use of wood tannins from oak in tanning animal hides into leather; hence the words "tan" and "tanning" for the treatment of leather. Oak bark, mimosa, chestnut and quebracho tree have traditionally been the primary source of tannery tannin, though inorganic tanning agents are also in use today and account for 90% of the world's leather production
[12] Cooking oil can be converted into vegetable ghee by the process of -
A.
oxidation
B.
hydrogenation
C.
distillation
D.
crystalisation
Ans:
hydrogenation
Explanation :
An example of an alkene addition reaction is a process called hydrogenation. In a hydrogenation reaction, two hydrogen atoms are added across the double bond of an alkene, resulting in a saturated alkane.
[13] Which of the following is a good source of Vitamin 'E'?
A.
Me
B.
Ghee
C.
Yellow Yolk
D.
Fresh Vegetables
Ans:
Fresh Vegetables
Explanation :
Vitamin E refers to a group of eight fat-soluble compounds that include both tocopherols and tocotrienols. Numerous foods provide vitamin E. Nuts, seeds, and vegetable oils are among the best sources of alpha-tocopherol, and significant amounts are available in green leafy vegetables and fortified cereals.
[14] Penicillin is isolated from :
A.
Fungi
B.
Algae
C.
Virus
D.
Bacteria
Ans:
Fungi
Explanation :
Penicillin is one of the first and still one of the most widely used antibiotic agents - derived from the Penicillium mold (fungi). Penicillin kills bacteria by interfering with the ability to synthesize cell wall.
[15] Insulin for Diabetes is invented by -
A.
Edward Jenner
B.
Alexander Fleming
C.
E.F. Banting
D.
Hoffiman
Ans:
E.F. Banting
Explanation :
First use of insulin in treatment of diabetes on this day in 1922. On 11 January 1922 insulin was first used in the treatment of diabetes Insulin was discovered by Sir Frederick G Banting.
[16] What is the term used for the process of pollination by birds?
A.
Embryophily
B.
Ornithophily
C.
Entomophily
D.
Hydrophily
Ans:
Ornithophily
Explanation :
Ornithophily or bird pollination is the pollination of flowering plants by birds. This coevolutionary association is derived from insect pollination (entomophily) and is particularly well developed in some parts of the world, especially in the tropics and on some island chains.
[17] Which one of the following organs excretes water, fat and various catabolic wastes?
A.
Kidney
B.
Skin
C.
Spleen
D.
Salivary glands
Ans:
Kidney
Explanation :
The kidneys are essential in the urinary system and also serve homeostatic functions such as the regulation of electrolytes, maintenance of acid-base balance, and regulation of blood pressure (via maintaining salt and water balance). They serve the body as a natural filter of the blood, and remove wastes which are diverted to the urinary bladder.
[18] The trace metal present in insulin is -
A.
iron
B.
zinc
C.
cobalt
D.
manganese
Ans:
zinc
Explanation :
Trace elements play important role in Insulin metabolism. The relationship between diabetes, insulin and zinc (Zn) is complex with no clear cause and effect relationships. Several of the complications of diabetes may be related to increased intracellular oxidants and free radicals associated with decreases in intracellular Zn and in Zn dependent antioxidant enzymes.
[19] Male mosquitoes -
A.
Suck blood
B.
Feed on plant juices
C.
Spread encephalitis
D.
Spread malaria
Ans:
Feed on plant juices
Explanation :
Typically, both male and female mosquitoes feed on nectar and plant juices, but in many species the mouthparts of the females are adapted for piercing the skin of animal hosts and sucking their blood as ectoparasites.
[20] Where is the Pineal Gland situated?
A.
in the Liver
B.
in the Brain
C.
in the Kidneys
D.
in the Uterus
Ans:
in the Brain
Explanation :
The pineal gland is a small endocrine gland in the vertebrate brain. It produces the serotonin derivative melatonin, a hormone that affects the modulation of wake/sleep patterns and, seasonal functions. Its shape resembles a tiny pine cone (hence its name), and it is located near the centre of the brain.
[21] Which of the following cells secrete insulin?
A.
Alpha cells
B.
Delta cells
C.
Nerve cells
D.
Beta cells
Ans:
Beta cells
Explanation :
Insulin is a hormone that is exclusively produced by pancreatic beta cells. Beta cells are located in the pancreas in clusters known as the islets of Langerhans. When the beta cell is appropriately stimulated, insulin is secreted from the cell by exocytosis and diffuses into islet capillary blood.
[22] In the human body, fats are stored in the -
A.
Epidermis
B.
Adipose tissue
C.
Liver
D.
Epithelium
Ans:
Adipose tissue
Explanation :
In humans, adipose tissue is located: beneath the skin (subcutaneous fat), around internal organs (visceral fat), in bone marrow (yellow bone marrow), intermuscular (Muscular system) and in the breast (breast tissue). Adipose tissue is found in specific locations, which are referred to as adipose depots.
[23] Blood pressure is measured with:
A.
Thermometer
B.
Barometer
C.
Sphygmomanometer
D.
Lactometer
Ans:
Sphygmomanometer
Explanation :
A sphygmomanometer, also known as a blood pressure meter, blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure. A sphygmomanometer has three parts: a cuff that can be inflated with air, a pressure meter (manometer) for measuring air pressure in the cuff, and a stethoscope for listening to the sound the blood makes as it flows through the brachial artery (the major artery found in your upper arm).
[24] The reagent used to test the presence of starch in leaves is -
A.
Fehling's solution
B.
Iodine solution
C.
Million's reagent
D.
Benedict's solution
Ans:
Iodine solution
Explanation :
The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black color.
[25] Malaria can be cured with a drug extracted from -
A.
Belladonna tree
B.
Cinchona tree
C.
Oak tree
D.
Neem tree
Ans:
Cinchona tree
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
Explanation :
Enzymes are defined as biological catalysts. Chemically all enzymes are globular proteins. Each enzyme catalyses only one chemical reaction. Protein part of enzyme is known as Apoenzyme.
[4] Time required for the organism to eliminate 50% the total body burden or tissue concentration of chemical is referred as -
A.
Threshold limit time
B.
Halftime life
C.
Residual-period
D.
Half-life period
Ans:
Half-life period
Explanation :
Time required for the organism to eliminate 50 per cent of the total body burden or tissue concentration of chemical is referred to as Half Life Period.
[5] The sum of genes in a population is called -
A.
Phenotype
B.
Karyotype
C.
Genotype
D.
Gene pool
Ans:
Gene pool
Explanation :
Phenotype refers to a set of observable characteristics of an individual or group resulting from the interaction of its genotype with its environment. Gene pool refers to the stock of different genes in an interbreeding population.
[6] 'Plague' is caused by .
A.
Bacteria
B.
Protozoa
C.
Virus
D.
All of the above
Ans:
Bacteria
Explanation :
Plague is caused by Bacteria. It is a deadly infectious disease caused by the enterobacteria yersinia pestis, named after the French- Swiss bacteriologist Alexander Yersin.
[7] Growing more than one crop on a piece of land during the year is known as -
A.
Uni cropping
B.
Multiple cropping
C.
Double cropping
D.
niple cropping
Ans:
Multiple cropping
Explanation :
Multiple cropping refers to growing more than one crop on the same field during the season. This technique makes effective use of inputs such as soil, water, fertiliser etc. Thus output per unit area increases with manifold returns to the growers.
[8] Immunisation is a phenomenon of formation of antibodies by using inactive -
A.
Antigens
B.
Antibodies
C.
Chemicals
D.
Blood
Ans:
Antigens
Explanation :
Whenever an antigen enters the blood, it binds itself with a special kind of white blood cell called lymphocyte. Each Lymphocyte produces only one kind of antibody.
[9] Which one of the following is an indicator of air pollution?
A.
Cycas
B.
Algae
C.
Bryophytes
D.
Lichens
Ans:
Lichens
Explanation :
Lichens are an indicator of air pollution.
[10] Symptoms of Jaundice occur mainly due to disorder and malfunction of -
A.
Intestine
B.
Liver
C.
Stomach
D.
Pancreas
Ans:
Liver
Explanation :
Jaundice is also called as icterus in some parts of the world. The condition is mostly the effect of some sort of malfunction pertaining to the liver or the bile ducts causing a problem in the removal of bilirubin from the bloodstream.
[11] Which of the plant products is used in leather industry?
A.
Resin
B.
Mucilage
C.
Latex
D.
Tannin
Ans:
Tannin
Explanation :
A tannin is an astringent, bitter plant polyphenolic compound that binds to and precipitates proteins and various other organic compounds including amino acids and alkaloids. It refers to the use of wood tannins from oak in tanning animal hides into leather; hence the words "tan" and "tanning" for the treatment of leather. Oak bark, mimosa, chestnut and quebracho tree have traditionally been the primary source of tannery tannin, though inorganic tanning agents are also in use today and account for 90% of the world's leather production
[12] Cooking oil can be converted into vegetable ghee by the process of -
A.
oxidation
B.
hydrogenation
C.
distillation
D.
crystalisation
Ans:
hydrogenation
Explanation :
An example of an alkene addition reaction is a process called hydrogenation. In a hydrogenation reaction, two hydrogen atoms are added across the double bond of an alkene, resulting in a saturated alkane.
[13] Which of the following is a good source of Vitamin 'E'?
A.
Me
B.
Ghee
C.
Yellow Yolk
D.
Fresh Vegetables
Ans:
Fresh Vegetables
Explanation :
Vitamin E refers to a group of eight fat-soluble compounds that include both tocopherols and tocotrienols. Numerous foods provide vitamin E. Nuts, seeds, and vegetable oils are among the best sources of alpha-tocopherol, and significant amounts are available in green leafy vegetables and fortified cereals.
[14] Penicillin is isolated from :
A.
Fungi
B.
Algae
C.
Virus
D.
Bacteria
Ans:
Fungi
Explanation :
Penicillin is one of the first and still one of the most widely used antibiotic agents - derived from the Penicillium mold (fungi). Penicillin kills bacteria by interfering with the ability to synthesize cell wall.
[15] Insulin for Diabetes is invented by -
A.
Edward Jenner
B.
Alexander Fleming
C.
E.F. Banting
D.
Hoffiman
Ans:
E.F. Banting
Explanation :
First use of insulin in treatment of diabetes on this day in 1922. On 11 January 1922 insulin was first used in the treatment of diabetes Insulin was discovered by Sir Frederick G Banting.
[16] What is the term used for the process of pollination by birds?
A.
Embryophily
B.
Ornithophily
C.
Entomophily
D.
Hydrophily
Ans:
Ornithophily
Explanation :
Ornithophily or bird pollination is the pollination of flowering plants by birds. This coevolutionary association is derived from insect pollination (entomophily) and is particularly well developed in some parts of the world, especially in the tropics and on some island chains.
[17] Which one of the following organs excretes water, fat and various catabolic wastes?
A.
Kidney
B.
Skin
C.
Spleen
D.
Salivary glands
Ans:
Kidney
Explanation :
The kidneys are essential in the urinary system and also serve homeostatic functions such as the regulation of electrolytes, maintenance of acid-base balance, and regulation of blood pressure (via maintaining salt and water balance). They serve the body as a natural filter of the blood, and remove wastes which are diverted to the urinary bladder.
[18] The trace metal present in insulin is -
A.
iron
B.
zinc
C.
cobalt
D.
manganese
Ans:
zinc
Explanation :
Trace elements play important role in Insulin metabolism. The relationship between diabetes, insulin and zinc (Zn) is complex with no clear cause and effect relationships. Several of the complications of diabetes may be related to increased intracellular oxidants and free radicals associated with decreases in intracellular Zn and in Zn dependent antioxidant enzymes.
[19] Male mosquitoes -
A.
Suck blood
B.
Feed on plant juices
C.
Spread encephalitis
D.
Spread malaria
Ans:
Feed on plant juices
Explanation :
Typically, both male and female mosquitoes feed on nectar and plant juices, but in many species the mouthparts of the females are adapted for piercing the skin of animal hosts and sucking their blood as ectoparasites.
[20] Where is the Pineal Gland situated?
A.
in the Liver
B.
in the Brain
C.
in the Kidneys
D.
in the Uterus
Ans:
in the Brain
Explanation :
The pineal gland is a small endocrine gland in the vertebrate brain. It produces the serotonin derivative melatonin, a hormone that affects the modulation of wake/sleep patterns and, seasonal functions. Its shape resembles a tiny pine cone (hence its name), and it is located near the centre of the brain.
[21] Which of the following cells secrete insulin?
A.
Alpha cells
B.
Delta cells
C.
Nerve cells
D.
Beta cells
Ans:
Beta cells
Explanation :
Insulin is a hormone that is exclusively produced by pancreatic beta cells. Beta cells are located in the pancreas in clusters known as the islets of Langerhans. When the beta cell is appropriately stimulated, insulin is secreted from the cell by exocytosis and diffuses into islet capillary blood.
[22] In the human body, fats are stored in the -
A.
Epidermis
B.
Adipose tissue
C.
Liver
D.
Epithelium
Ans:
Adipose tissue
Explanation :
In humans, adipose tissue is located: beneath the skin (subcutaneous fat), around internal organs (visceral fat), in bone marrow (yellow bone marrow), intermuscular (Muscular system) and in the breast (breast tissue). Adipose tissue is found in specific locations, which are referred to as adipose depots.
[23] Blood pressure is measured with:
A.
Thermometer
B.
Barometer
C.
Sphygmomanometer
D.
Lactometer
Ans:
Sphygmomanometer
Explanation :
A sphygmomanometer, also known as a blood pressure meter, blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure. A sphygmomanometer has three parts: a cuff that can be inflated with air, a pressure meter (manometer) for measuring air pressure in the cuff, and a stethoscope for listening to the sound the blood makes as it flows through the brachial artery (the major artery found in your upper arm).
[24] The reagent used to test the presence of starch in leaves is -
A.
Fehling's solution
B.
Iodine solution
C.
Million's reagent
D.
Benedict's solution
Ans:
Iodine solution
Explanation :
The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black color.
[25] Malaria can be cured with a drug extracted from -
A.
Belladonna tree
B.
Cinchona tree
C.
Oak tree
D.
Neem tree
Ans:
Cinchona tree
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
Explanation :
Phenotype refers to a set of observable characteristics of an individual or group resulting from the interaction of its genotype with its environment. Gene pool refers to the stock of different genes in an interbreeding population.
[6] 'Plague' is caused by .
A.
Bacteria
B.
Protozoa
C.
Virus
D.
All of the above
Ans:
Bacteria
Explanation :
Plague is caused by Bacteria. It is a deadly infectious disease caused by the enterobacteria yersinia pestis, named after the French- Swiss bacteriologist Alexander Yersin.
[7] Growing more than one crop on a piece of land during the year is known as -
A.
Uni cropping
B.
Multiple cropping
C.
Double cropping
D.
niple cropping
Ans:
Multiple cropping
Explanation :
Multiple cropping refers to growing more than one crop on the same field during the season. This technique makes effective use of inputs such as soil, water, fertiliser etc. Thus output per unit area increases with manifold returns to the growers.
[8] Immunisation is a phenomenon of formation of antibodies by using inactive -
A.
Antigens
B.
Antibodies
C.
Chemicals
D.
Blood
Ans:
Antigens
Explanation :
Whenever an antigen enters the blood, it binds itself with a special kind of white blood cell called lymphocyte. Each Lymphocyte produces only one kind of antibody.
[9] Which one of the following is an indicator of air pollution?
A.
Cycas
B.
Algae
C.
Bryophytes
D.
Lichens
Ans:
Lichens
Explanation :
Lichens are an indicator of air pollution.
[10] Symptoms of Jaundice occur mainly due to disorder and malfunction of -
A.
Intestine
B.
Liver
C.
Stomach
D.
Pancreas
Ans:
Liver
Explanation :
Jaundice is also called as icterus in some parts of the world. The condition is mostly the effect of some sort of malfunction pertaining to the liver or the bile ducts causing a problem in the removal of bilirubin from the bloodstream.
[11] Which of the plant products is used in leather industry?
A.
Resin
B.
Mucilage
C.
Latex
D.
Tannin
Ans:
Tannin
Explanation :
A tannin is an astringent, bitter plant polyphenolic compound that binds to and precipitates proteins and various other organic compounds including amino acids and alkaloids. It refers to the use of wood tannins from oak in tanning animal hides into leather; hence the words "tan" and "tanning" for the treatment of leather. Oak bark, mimosa, chestnut and quebracho tree have traditionally been the primary source of tannery tannin, though inorganic tanning agents are also in use today and account for 90% of the world's leather production
[12] Cooking oil can be converted into vegetable ghee by the process of -
A.
oxidation
B.
hydrogenation
C.
distillation
D.
crystalisation
Ans:
hydrogenation
Explanation :
An example of an alkene addition reaction is a process called hydrogenation. In a hydrogenation reaction, two hydrogen atoms are added across the double bond of an alkene, resulting in a saturated alkane.
[13] Which of the following is a good source of Vitamin 'E'?
A.
Me
B.
Ghee
C.
Yellow Yolk
D.
Fresh Vegetables
Ans:
Fresh Vegetables
Explanation :
Vitamin E refers to a group of eight fat-soluble compounds that include both tocopherols and tocotrienols. Numerous foods provide vitamin E. Nuts, seeds, and vegetable oils are among the best sources of alpha-tocopherol, and significant amounts are available in green leafy vegetables and fortified cereals.
[14] Penicillin is isolated from :
A.
Fungi
B.
Algae
C.
Virus
D.
Bacteria
Ans:
Fungi
Explanation :
Penicillin is one of the first and still one of the most widely used antibiotic agents - derived from the Penicillium mold (fungi). Penicillin kills bacteria by interfering with the ability to synthesize cell wall.
[15] Insulin for Diabetes is invented by -
A.
Edward Jenner
B.
Alexander Fleming
C.
E.F. Banting
D.
Hoffiman
Ans:
E.F. Banting
Explanation :
First use of insulin in treatment of diabetes on this day in 1922. On 11 January 1922 insulin was first used in the treatment of diabetes Insulin was discovered by Sir Frederick G Banting.
[16] What is the term used for the process of pollination by birds?
A.
Embryophily
B.
Ornithophily
C.
Entomophily
D.
Hydrophily
Ans:
Ornithophily
Explanation :
Ornithophily or bird pollination is the pollination of flowering plants by birds. This coevolutionary association is derived from insect pollination (entomophily) and is particularly well developed in some parts of the world, especially in the tropics and on some island chains.
[17] Which one of the following organs excretes water, fat and various catabolic wastes?
A.
Kidney
B.
Skin
C.
Spleen
D.
Salivary glands
Ans:
Kidney
Explanation :
The kidneys are essential in the urinary system and also serve homeostatic functions such as the regulation of electrolytes, maintenance of acid-base balance, and regulation of blood pressure (via maintaining salt and water balance). They serve the body as a natural filter of the blood, and remove wastes which are diverted to the urinary bladder.
[18] The trace metal present in insulin is -
A.
iron
B.
zinc
C.
cobalt
D.
manganese
Ans:
zinc
Explanation :
Trace elements play important role in Insulin metabolism. The relationship between diabetes, insulin and zinc (Zn) is complex with no clear cause and effect relationships. Several of the complications of diabetes may be related to increased intracellular oxidants and free radicals associated with decreases in intracellular Zn and in Zn dependent antioxidant enzymes.
[19] Male mosquitoes -
A.
Suck blood
B.
Feed on plant juices
C.
Spread encephalitis
D.
Spread malaria
Ans:
Feed on plant juices
Explanation :
Typically, both male and female mosquitoes feed on nectar and plant juices, but in many species the mouthparts of the females are adapted for piercing the skin of animal hosts and sucking their blood as ectoparasites.
[20] Where is the Pineal Gland situated?
A.
in the Liver
B.
in the Brain
C.
in the Kidneys
D.
in the Uterus
Ans:
in the Brain
Explanation :
The pineal gland is a small endocrine gland in the vertebrate brain. It produces the serotonin derivative melatonin, a hormone that affects the modulation of wake/sleep patterns and, seasonal functions. Its shape resembles a tiny pine cone (hence its name), and it is located near the centre of the brain.
[21] Which of the following cells secrete insulin?
A.
Alpha cells
B.
Delta cells
C.
Nerve cells
D.
Beta cells
Ans:
Beta cells
Explanation :
Insulin is a hormone that is exclusively produced by pancreatic beta cells. Beta cells are located in the pancreas in clusters known as the islets of Langerhans. When the beta cell is appropriately stimulated, insulin is secreted from the cell by exocytosis and diffuses into islet capillary blood.
[22] In the human body, fats are stored in the -
A.
Epidermis
B.
Adipose tissue
C.
Liver
D.
Epithelium
Ans:
Adipose tissue
Explanation :
In humans, adipose tissue is located: beneath the skin (subcutaneous fat), around internal organs (visceral fat), in bone marrow (yellow bone marrow), intermuscular (Muscular system) and in the breast (breast tissue). Adipose tissue is found in specific locations, which are referred to as adipose depots.
[23] Blood pressure is measured with:
A.
Thermometer
B.
Barometer
C.
Sphygmomanometer
D.
Lactometer
Ans:
Sphygmomanometer
Explanation :
A sphygmomanometer, also known as a blood pressure meter, blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure. A sphygmomanometer has three parts: a cuff that can be inflated with air, a pressure meter (manometer) for measuring air pressure in the cuff, and a stethoscope for listening to the sound the blood makes as it flows through the brachial artery (the major artery found in your upper arm).
[24] The reagent used to test the presence of starch in leaves is -
A.
Fehling's solution
B.
Iodine solution
C.
Million's reagent
D.
Benedict's solution
Ans:
Iodine solution
Explanation :
The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black color.
[25] Malaria can be cured with a drug extracted from -
A.
Belladonna tree
B.
Cinchona tree
C.
Oak tree
D.
Neem tree
Ans:
Cinchona tree
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
Explanation :
Multiple cropping refers to growing more than one crop on the same field during the season. This technique makes effective use of inputs such as soil, water, fertiliser etc. Thus output per unit area increases with manifold returns to the growers.
[8] Immunisation is a phenomenon of formation of antibodies by using inactive -
A.
Antigens
B.
Antibodies
C.
Chemicals
D.
Blood
Ans:
Antigens
Explanation :
Whenever an antigen enters the blood, it binds itself with a special kind of white blood cell called lymphocyte. Each Lymphocyte produces only one kind of antibody.
[9] Which one of the following is an indicator of air pollution?
A.
Cycas
B.
Algae
C.
Bryophytes
D.
Lichens
Ans:
Lichens
Explanation :
Lichens are an indicator of air pollution.
[10] Symptoms of Jaundice occur mainly due to disorder and malfunction of -
A.
Intestine
B.
Liver
C.
Stomach
D.
Pancreas
Ans:
Liver
Explanation :
Jaundice is also called as icterus in some parts of the world. The condition is mostly the effect of some sort of malfunction pertaining to the liver or the bile ducts causing a problem in the removal of bilirubin from the bloodstream.
[11] Which of the plant products is used in leather industry?
A.
Resin
B.
Mucilage
C.
Latex
D.
Tannin
Ans:
Tannin
Explanation :
A tannin is an astringent, bitter plant polyphenolic compound that binds to and precipitates proteins and various other organic compounds including amino acids and alkaloids. It refers to the use of wood tannins from oak in tanning animal hides into leather; hence the words "tan" and "tanning" for the treatment of leather. Oak bark, mimosa, chestnut and quebracho tree have traditionally been the primary source of tannery tannin, though inorganic tanning agents are also in use today and account for 90% of the world's leather production
[12] Cooking oil can be converted into vegetable ghee by the process of -
A.
oxidation
B.
hydrogenation
C.
distillation
D.
crystalisation
Ans:
hydrogenation
Explanation :
An example of an alkene addition reaction is a process called hydrogenation. In a hydrogenation reaction, two hydrogen atoms are added across the double bond of an alkene, resulting in a saturated alkane.
[13] Which of the following is a good source of Vitamin 'E'?
A.
Me
B.
Ghee
C.
Yellow Yolk
D.
Fresh Vegetables
Ans:
Fresh Vegetables
Explanation :
Vitamin E refers to a group of eight fat-soluble compounds that include both tocopherols and tocotrienols. Numerous foods provide vitamin E. Nuts, seeds, and vegetable oils are among the best sources of alpha-tocopherol, and significant amounts are available in green leafy vegetables and fortified cereals.
[14] Penicillin is isolated from :
A.
Fungi
B.
Algae
C.
Virus
D.
Bacteria
Ans:
Fungi
Explanation :
Penicillin is one of the first and still one of the most widely used antibiotic agents - derived from the Penicillium mold (fungi). Penicillin kills bacteria by interfering with the ability to synthesize cell wall.
[15] Insulin for Diabetes is invented by -
A.
Edward Jenner
B.
Alexander Fleming
C.
E.F. Banting
D.
Hoffiman
Ans:
E.F. Banting
Explanation :
First use of insulin in treatment of diabetes on this day in 1922. On 11 January 1922 insulin was first used in the treatment of diabetes Insulin was discovered by Sir Frederick G Banting.
[16] What is the term used for the process of pollination by birds?
A.
Embryophily
B.
Ornithophily
C.
Entomophily
D.
Hydrophily
Ans:
Ornithophily
Explanation :
Ornithophily or bird pollination is the pollination of flowering plants by birds. This coevolutionary association is derived from insect pollination (entomophily) and is particularly well developed in some parts of the world, especially in the tropics and on some island chains.
[17] Which one of the following organs excretes water, fat and various catabolic wastes?
A.
Kidney
B.
Skin
C.
Spleen
D.
Salivary glands
Ans:
Kidney
Explanation :
The kidneys are essential in the urinary system and also serve homeostatic functions such as the regulation of electrolytes, maintenance of acid-base balance, and regulation of blood pressure (via maintaining salt and water balance). They serve the body as a natural filter of the blood, and remove wastes which are diverted to the urinary bladder.
[18] The trace metal present in insulin is -
A.
iron
B.
zinc
C.
cobalt
D.
manganese
Ans:
zinc
Explanation :
Trace elements play important role in Insulin metabolism. The relationship between diabetes, insulin and zinc (Zn) is complex with no clear cause and effect relationships. Several of the complications of diabetes may be related to increased intracellular oxidants and free radicals associated with decreases in intracellular Zn and in Zn dependent antioxidant enzymes.
[19] Male mosquitoes -
A.
Suck blood
B.
Feed on plant juices
C.
Spread encephalitis
D.
Spread malaria
Ans:
Feed on plant juices
Explanation :
Typically, both male and female mosquitoes feed on nectar and plant juices, but in many species the mouthparts of the females are adapted for piercing the skin of animal hosts and sucking their blood as ectoparasites.
[20] Where is the Pineal Gland situated?
A.
in the Liver
B.
in the Brain
C.
in the Kidneys
D.
in the Uterus
Ans:
in the Brain
Explanation :
The pineal gland is a small endocrine gland in the vertebrate brain. It produces the serotonin derivative melatonin, a hormone that affects the modulation of wake/sleep patterns and, seasonal functions. Its shape resembles a tiny pine cone (hence its name), and it is located near the centre of the brain.
[21] Which of the following cells secrete insulin?
A.
Alpha cells
B.
Delta cells
C.
Nerve cells
D.
Beta cells
Ans:
Beta cells
Explanation :
Insulin is a hormone that is exclusively produced by pancreatic beta cells. Beta cells are located in the pancreas in clusters known as the islets of Langerhans. When the beta cell is appropriately stimulated, insulin is secreted from the cell by exocytosis and diffuses into islet capillary blood.
[22] In the human body, fats are stored in the -
A.
Epidermis
B.
Adipose tissue
C.
Liver
D.
Epithelium
Ans:
Adipose tissue
Explanation :
In humans, adipose tissue is located: beneath the skin (subcutaneous fat), around internal organs (visceral fat), in bone marrow (yellow bone marrow), intermuscular (Muscular system) and in the breast (breast tissue). Adipose tissue is found in specific locations, which are referred to as adipose depots.
[23] Blood pressure is measured with:
A.
Thermometer
B.
Barometer
C.
Sphygmomanometer
D.
Lactometer
Ans:
Sphygmomanometer
Explanation :
A sphygmomanometer, also known as a blood pressure meter, blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure. A sphygmomanometer has three parts: a cuff that can be inflated with air, a pressure meter (manometer) for measuring air pressure in the cuff, and a stethoscope for listening to the sound the blood makes as it flows through the brachial artery (the major artery found in your upper arm).
[24] The reagent used to test the presence of starch in leaves is -
A.
Fehling's solution
B.
Iodine solution
C.
Million's reagent
D.
Benedict's solution
Ans:
Iodine solution
Explanation :
The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black color.
[25] Malaria can be cured with a drug extracted from -
A.
Belladonna tree
B.
Cinchona tree
C.
Oak tree
D.
Neem tree
Ans:
Cinchona tree
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
Explanation :
Lichens are an indicator of air pollution.
[10] Symptoms of Jaundice occur mainly due to disorder and malfunction of -
A.
Intestine
B.
Liver
C.
Stomach
D.
Pancreas
Ans:
Liver
Explanation :
Jaundice is also called as icterus in some parts of the world. The condition is mostly the effect of some sort of malfunction pertaining to the liver or the bile ducts causing a problem in the removal of bilirubin from the bloodstream.
[11] Which of the plant products is used in leather industry?
A.
Resin
B.
Mucilage
C.
Latex
D.
Tannin
Ans:
Tannin
Explanation :
A tannin is an astringent, bitter plant polyphenolic compound that binds to and precipitates proteins and various other organic compounds including amino acids and alkaloids. It refers to the use of wood tannins from oak in tanning animal hides into leather; hence the words "tan" and "tanning" for the treatment of leather. Oak bark, mimosa, chestnut and quebracho tree have traditionally been the primary source of tannery tannin, though inorganic tanning agents are also in use today and account for 90% of the world's leather production
[12] Cooking oil can be converted into vegetable ghee by the process of -
A.
oxidation
B.
hydrogenation
C.
distillation
D.
crystalisation
Ans:
hydrogenation
Explanation :
An example of an alkene addition reaction is a process called hydrogenation. In a hydrogenation reaction, two hydrogen atoms are added across the double bond of an alkene, resulting in a saturated alkane.
[13] Which of the following is a good source of Vitamin 'E'?
A.
Me
B.
Ghee
C.
Yellow Yolk
D.
Fresh Vegetables
Ans:
Fresh Vegetables
Explanation :
Vitamin E refers to a group of eight fat-soluble compounds that include both tocopherols and tocotrienols. Numerous foods provide vitamin E. Nuts, seeds, and vegetable oils are among the best sources of alpha-tocopherol, and significant amounts are available in green leafy vegetables and fortified cereals.
[14] Penicillin is isolated from :
A.
Fungi
B.
Algae
C.
Virus
D.
Bacteria
Ans:
Fungi
Explanation :
Penicillin is one of the first and still one of the most widely used antibiotic agents - derived from the Penicillium mold (fungi). Penicillin kills bacteria by interfering with the ability to synthesize cell wall.
[15] Insulin for Diabetes is invented by -
A.
Edward Jenner
B.
Alexander Fleming
C.
E.F. Banting
D.
Hoffiman
Ans:
E.F. Banting
Explanation :
First use of insulin in treatment of diabetes on this day in 1922. On 11 January 1922 insulin was first used in the treatment of diabetes Insulin was discovered by Sir Frederick G Banting.
[16] What is the term used for the process of pollination by birds?
A.
Embryophily
B.
Ornithophily
C.
Entomophily
D.
Hydrophily
Ans:
Ornithophily
Explanation :
Ornithophily or bird pollination is the pollination of flowering plants by birds. This coevolutionary association is derived from insect pollination (entomophily) and is particularly well developed in some parts of the world, especially in the tropics and on some island chains.
[17] Which one of the following organs excretes water, fat and various catabolic wastes?
A.
Kidney
B.
Skin
C.
Spleen
D.
Salivary glands
Ans:
Kidney
Explanation :
The kidneys are essential in the urinary system and also serve homeostatic functions such as the regulation of electrolytes, maintenance of acid-base balance, and regulation of blood pressure (via maintaining salt and water balance). They serve the body as a natural filter of the blood, and remove wastes which are diverted to the urinary bladder.
[18] The trace metal present in insulin is -
A.
iron
B.
zinc
C.
cobalt
D.
manganese
Ans:
zinc
Explanation :
Trace elements play important role in Insulin metabolism. The relationship between diabetes, insulin and zinc (Zn) is complex with no clear cause and effect relationships. Several of the complications of diabetes may be related to increased intracellular oxidants and free radicals associated with decreases in intracellular Zn and in Zn dependent antioxidant enzymes.
[19] Male mosquitoes -
A.
Suck blood
B.
Feed on plant juices
C.
Spread encephalitis
D.
Spread malaria
Ans:
Feed on plant juices
Explanation :
Typically, both male and female mosquitoes feed on nectar and plant juices, but in many species the mouthparts of the females are adapted for piercing the skin of animal hosts and sucking their blood as ectoparasites.
[20] Where is the Pineal Gland situated?
A.
in the Liver
B.
in the Brain
C.
in the Kidneys
D.
in the Uterus
Ans:
in the Brain
Explanation :
The pineal gland is a small endocrine gland in the vertebrate brain. It produces the serotonin derivative melatonin, a hormone that affects the modulation of wake/sleep patterns and, seasonal functions. Its shape resembles a tiny pine cone (hence its name), and it is located near the centre of the brain.
[21] Which of the following cells secrete insulin?
A.
Alpha cells
B.
Delta cells
C.
Nerve cells
D.
Beta cells
Ans:
Beta cells
Explanation :
Insulin is a hormone that is exclusively produced by pancreatic beta cells. Beta cells are located in the pancreas in clusters known as the islets of Langerhans. When the beta cell is appropriately stimulated, insulin is secreted from the cell by exocytosis and diffuses into islet capillary blood.
[22] In the human body, fats are stored in the -
A.
Epidermis
B.
Adipose tissue
C.
Liver
D.
Epithelium
Ans:
Adipose tissue
Explanation :
In humans, adipose tissue is located: beneath the skin (subcutaneous fat), around internal organs (visceral fat), in bone marrow (yellow bone marrow), intermuscular (Muscular system) and in the breast (breast tissue). Adipose tissue is found in specific locations, which are referred to as adipose depots.
[23] Blood pressure is measured with:
A.
Thermometer
B.
Barometer
C.
Sphygmomanometer
D.
Lactometer
Ans:
Sphygmomanometer
Explanation :
A sphygmomanometer, also known as a blood pressure meter, blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure. A sphygmomanometer has three parts: a cuff that can be inflated with air, a pressure meter (manometer) for measuring air pressure in the cuff, and a stethoscope for listening to the sound the blood makes as it flows through the brachial artery (the major artery found in your upper arm).
[24] The reagent used to test the presence of starch in leaves is -
A.
Fehling's solution
B.
Iodine solution
C.
Million's reagent
D.
Benedict's solution
Ans:
Iodine solution
Explanation :
The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black color.
[25] Malaria can be cured with a drug extracted from -
A.
Belladonna tree
B.
Cinchona tree
C.
Oak tree
D.
Neem tree
Ans:
Cinchona tree
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
Explanation :
A tannin is an astringent, bitter plant polyphenolic compound that binds to and precipitates proteins and various other organic compounds including amino acids and alkaloids. It refers to the use of wood tannins from oak in tanning animal hides into leather; hence the words "tan" and "tanning" for the treatment of leather. Oak bark, mimosa, chestnut and quebracho tree have traditionally been the primary source of tannery tannin, though inorganic tanning agents are also in use today and account for 90% of the world's leather production
[12] Cooking oil can be converted into vegetable ghee by the process of -
A.
oxidation
B.
hydrogenation
C.
distillation
D.
crystalisation
Ans:
hydrogenation
Explanation :
An example of an alkene addition reaction is a process called hydrogenation. In a hydrogenation reaction, two hydrogen atoms are added across the double bond of an alkene, resulting in a saturated alkane.
[13] Which of the following is a good source of Vitamin 'E'?
A.
Me
B.
Ghee
C.
Yellow Yolk
D.
Fresh Vegetables
Ans:
Fresh Vegetables
Explanation :
Vitamin E refers to a group of eight fat-soluble compounds that include both tocopherols and tocotrienols. Numerous foods provide vitamin E. Nuts, seeds, and vegetable oils are among the best sources of alpha-tocopherol, and significant amounts are available in green leafy vegetables and fortified cereals.
[14] Penicillin is isolated from :
A.
Fungi
B.
Algae
C.
Virus
D.
Bacteria
Ans:
Fungi
Explanation :
Penicillin is one of the first and still one of the most widely used antibiotic agents - derived from the Penicillium mold (fungi). Penicillin kills bacteria by interfering with the ability to synthesize cell wall.
[15] Insulin for Diabetes is invented by -
A.
Edward Jenner
B.
Alexander Fleming
C.
E.F. Banting
D.
Hoffiman
Ans:
E.F. Banting
Explanation :
First use of insulin in treatment of diabetes on this day in 1922. On 11 January 1922 insulin was first used in the treatment of diabetes Insulin was discovered by Sir Frederick G Banting.
[16] What is the term used for the process of pollination by birds?
A.
Embryophily
B.
Ornithophily
C.
Entomophily
D.
Hydrophily
Ans:
Ornithophily
Explanation :
Ornithophily or bird pollination is the pollination of flowering plants by birds. This coevolutionary association is derived from insect pollination (entomophily) and is particularly well developed in some parts of the world, especially in the tropics and on some island chains.
[17] Which one of the following organs excretes water, fat and various catabolic wastes?
A.
Kidney
B.
Skin
C.
Spleen
D.
Salivary glands
Ans:
Kidney
Explanation :
The kidneys are essential in the urinary system and also serve homeostatic functions such as the regulation of electrolytes, maintenance of acid-base balance, and regulation of blood pressure (via maintaining salt and water balance). They serve the body as a natural filter of the blood, and remove wastes which are diverted to the urinary bladder.
[18] The trace metal present in insulin is -
A.
iron
B.
zinc
C.
cobalt
D.
manganese
Ans:
zinc
Explanation :
Trace elements play important role in Insulin metabolism. The relationship between diabetes, insulin and zinc (Zn) is complex with no clear cause and effect relationships. Several of the complications of diabetes may be related to increased intracellular oxidants and free radicals associated with decreases in intracellular Zn and in Zn dependent antioxidant enzymes.
[19] Male mosquitoes -
A.
Suck blood
B.
Feed on plant juices
C.
Spread encephalitis
D.
Spread malaria
Ans:
Feed on plant juices
Explanation :
Typically, both male and female mosquitoes feed on nectar and plant juices, but in many species the mouthparts of the females are adapted for piercing the skin of animal hosts and sucking their blood as ectoparasites.
[20] Where is the Pineal Gland situated?
A.
in the Liver
B.
in the Brain
C.
in the Kidneys
D.
in the Uterus
Ans:
in the Brain
Explanation :
The pineal gland is a small endocrine gland in the vertebrate brain. It produces the serotonin derivative melatonin, a hormone that affects the modulation of wake/sleep patterns and, seasonal functions. Its shape resembles a tiny pine cone (hence its name), and it is located near the centre of the brain.
[21] Which of the following cells secrete insulin?
A.
Alpha cells
B.
Delta cells
C.
Nerve cells
D.
Beta cells
Ans:
Beta cells
Explanation :
Insulin is a hormone that is exclusively produced by pancreatic beta cells. Beta cells are located in the pancreas in clusters known as the islets of Langerhans. When the beta cell is appropriately stimulated, insulin is secreted from the cell by exocytosis and diffuses into islet capillary blood.
[22] In the human body, fats are stored in the -
A.
Epidermis
B.
Adipose tissue
C.
Liver
D.
Epithelium
Ans:
Adipose tissue
Explanation :
In humans, adipose tissue is located: beneath the skin (subcutaneous fat), around internal organs (visceral fat), in bone marrow (yellow bone marrow), intermuscular (Muscular system) and in the breast (breast tissue). Adipose tissue is found in specific locations, which are referred to as adipose depots.
[23] Blood pressure is measured with:
A.
Thermometer
B.
Barometer
C.
Sphygmomanometer
D.
Lactometer
Ans:
Sphygmomanometer
Explanation :
A sphygmomanometer, also known as a blood pressure meter, blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure. A sphygmomanometer has three parts: a cuff that can be inflated with air, a pressure meter (manometer) for measuring air pressure in the cuff, and a stethoscope for listening to the sound the blood makes as it flows through the brachial artery (the major artery found in your upper arm).
[24] The reagent used to test the presence of starch in leaves is -
A.
Fehling's solution
B.
Iodine solution
C.
Million's reagent
D.
Benedict's solution
Ans:
Iodine solution
Explanation :
The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black color.
[25] Malaria can be cured with a drug extracted from -
A.
Belladonna tree
B.
Cinchona tree
C.
Oak tree
D.
Neem tree
Ans:
Cinchona tree
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
Explanation :
Vitamin E refers to a group of eight fat-soluble compounds that include both tocopherols and tocotrienols. Numerous foods provide vitamin E. Nuts, seeds, and vegetable oils are among the best sources of alpha-tocopherol, and significant amounts are available in green leafy vegetables and fortified cereals.
[14] Penicillin is isolated from :
A.
Fungi
B.
Algae
C.
Virus
D.
Bacteria
Ans:
Fungi
Explanation :
Penicillin is one of the first and still one of the most widely used antibiotic agents - derived from the Penicillium mold (fungi). Penicillin kills bacteria by interfering with the ability to synthesize cell wall.
[15] Insulin for Diabetes is invented by -
A.
Edward Jenner
B.
Alexander Fleming
C.
E.F. Banting
D.
Hoffiman
Ans:
E.F. Banting
Explanation :
First use of insulin in treatment of diabetes on this day in 1922. On 11 January 1922 insulin was first used in the treatment of diabetes Insulin was discovered by Sir Frederick G Banting.
[16] What is the term used for the process of pollination by birds?
A.
Embryophily
B.
Ornithophily
C.
Entomophily
D.
Hydrophily
Ans:
Ornithophily
Explanation :
Ornithophily or bird pollination is the pollination of flowering plants by birds. This coevolutionary association is derived from insect pollination (entomophily) and is particularly well developed in some parts of the world, especially in the tropics and on some island chains.
[17] Which one of the following organs excretes water, fat and various catabolic wastes?
A.
Kidney
B.
Skin
C.
Spleen
D.
Salivary glands
Ans:
Kidney
Explanation :
The kidneys are essential in the urinary system and also serve homeostatic functions such as the regulation of electrolytes, maintenance of acid-base balance, and regulation of blood pressure (via maintaining salt and water balance). They serve the body as a natural filter of the blood, and remove wastes which are diverted to the urinary bladder.
[18] The trace metal present in insulin is -
A.
iron
B.
zinc
C.
cobalt
D.
manganese
Ans:
zinc
Explanation :
Trace elements play important role in Insulin metabolism. The relationship between diabetes, insulin and zinc (Zn) is complex with no clear cause and effect relationships. Several of the complications of diabetes may be related to increased intracellular oxidants and free radicals associated with decreases in intracellular Zn and in Zn dependent antioxidant enzymes.
[19] Male mosquitoes -
A.
Suck blood
B.
Feed on plant juices
C.
Spread encephalitis
D.
Spread malaria
Ans:
Feed on plant juices
Explanation :
Typically, both male and female mosquitoes feed on nectar and plant juices, but in many species the mouthparts of the females are adapted for piercing the skin of animal hosts and sucking their blood as ectoparasites.
[20] Where is the Pineal Gland situated?
A.
in the Liver
B.
in the Brain
C.
in the Kidneys
D.
in the Uterus
Ans:
in the Brain
Explanation :
The pineal gland is a small endocrine gland in the vertebrate brain. It produces the serotonin derivative melatonin, a hormone that affects the modulation of wake/sleep patterns and, seasonal functions. Its shape resembles a tiny pine cone (hence its name), and it is located near the centre of the brain.
[21] Which of the following cells secrete insulin?
A.
Alpha cells
B.
Delta cells
C.
Nerve cells
D.
Beta cells
Ans:
Beta cells
Explanation :
Insulin is a hormone that is exclusively produced by pancreatic beta cells. Beta cells are located in the pancreas in clusters known as the islets of Langerhans. When the beta cell is appropriately stimulated, insulin is secreted from the cell by exocytosis and diffuses into islet capillary blood.
[22] In the human body, fats are stored in the -
A.
Epidermis
B.
Adipose tissue
C.
Liver
D.
Epithelium
Ans:
Adipose tissue
Explanation :
In humans, adipose tissue is located: beneath the skin (subcutaneous fat), around internal organs (visceral fat), in bone marrow (yellow bone marrow), intermuscular (Muscular system) and in the breast (breast tissue). Adipose tissue is found in specific locations, which are referred to as adipose depots.
[23] Blood pressure is measured with:
A.
Thermometer
B.
Barometer
C.
Sphygmomanometer
D.
Lactometer
Ans:
Sphygmomanometer
Explanation :
A sphygmomanometer, also known as a blood pressure meter, blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure. A sphygmomanometer has three parts: a cuff that can be inflated with air, a pressure meter (manometer) for measuring air pressure in the cuff, and a stethoscope for listening to the sound the blood makes as it flows through the brachial artery (the major artery found in your upper arm).
[24] The reagent used to test the presence of starch in leaves is -
A.
Fehling's solution
B.
Iodine solution
C.
Million's reagent
D.
Benedict's solution
Ans:
Iodine solution
Explanation :
The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black color.
[25] Malaria can be cured with a drug extracted from -
A.
Belladonna tree
B.
Cinchona tree
C.
Oak tree
D.
Neem tree
Ans:
Cinchona tree
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
Explanation :
First use of insulin in treatment of diabetes on this day in 1922. On 11 January 1922 insulin was first used in the treatment of diabetes Insulin was discovered by Sir Frederick G Banting.
[16] What is the term used for the process of pollination by birds?
A.
Embryophily
B.
Ornithophily
C.
Entomophily
D.
Hydrophily
Ans:
Ornithophily
Explanation :
Ornithophily or bird pollination is the pollination of flowering plants by birds. This coevolutionary association is derived from insect pollination (entomophily) and is particularly well developed in some parts of the world, especially in the tropics and on some island chains.
[17] Which one of the following organs excretes water, fat and various catabolic wastes?
A.
Kidney
B.
Skin
C.
Spleen
D.
Salivary glands
Ans:
Kidney
Explanation :
The kidneys are essential in the urinary system and also serve homeostatic functions such as the regulation of electrolytes, maintenance of acid-base balance, and regulation of blood pressure (via maintaining salt and water balance). They serve the body as a natural filter of the blood, and remove wastes which are diverted to the urinary bladder.
[18] The trace metal present in insulin is -
A.
iron
B.
zinc
C.
cobalt
D.
manganese
Ans:
zinc
Explanation :
Trace elements play important role in Insulin metabolism. The relationship between diabetes, insulin and zinc (Zn) is complex with no clear cause and effect relationships. Several of the complications of diabetes may be related to increased intracellular oxidants and free radicals associated with decreases in intracellular Zn and in Zn dependent antioxidant enzymes.
[19] Male mosquitoes -
A.
Suck blood
B.
Feed on plant juices
C.
Spread encephalitis
D.
Spread malaria
Ans:
Feed on plant juices
Explanation :
Typically, both male and female mosquitoes feed on nectar and plant juices, but in many species the mouthparts of the females are adapted for piercing the skin of animal hosts and sucking their blood as ectoparasites.
[20] Where is the Pineal Gland situated?
A.
in the Liver
B.
in the Brain
C.
in the Kidneys
D.
in the Uterus
Ans:
in the Brain
Explanation :
The pineal gland is a small endocrine gland in the vertebrate brain. It produces the serotonin derivative melatonin, a hormone that affects the modulation of wake/sleep patterns and, seasonal functions. Its shape resembles a tiny pine cone (hence its name), and it is located near the centre of the brain.
[21] Which of the following cells secrete insulin?
A.
Alpha cells
B.
Delta cells
C.
Nerve cells
D.
Beta cells
Ans:
Beta cells
Explanation :
Insulin is a hormone that is exclusively produced by pancreatic beta cells. Beta cells are located in the pancreas in clusters known as the islets of Langerhans. When the beta cell is appropriately stimulated, insulin is secreted from the cell by exocytosis and diffuses into islet capillary blood.
[22] In the human body, fats are stored in the -
A.
Epidermis
B.
Adipose tissue
C.
Liver
D.
Epithelium
Ans:
Adipose tissue
Explanation :
In humans, adipose tissue is located: beneath the skin (subcutaneous fat), around internal organs (visceral fat), in bone marrow (yellow bone marrow), intermuscular (Muscular system) and in the breast (breast tissue). Adipose tissue is found in specific locations, which are referred to as adipose depots.
[23] Blood pressure is measured with:
A.
Thermometer
B.
Barometer
C.
Sphygmomanometer
D.
Lactometer
Ans:
Sphygmomanometer
Explanation :
A sphygmomanometer, also known as a blood pressure meter, blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure. A sphygmomanometer has three parts: a cuff that can be inflated with air, a pressure meter (manometer) for measuring air pressure in the cuff, and a stethoscope for listening to the sound the blood makes as it flows through the brachial artery (the major artery found in your upper arm).
[24] The reagent used to test the presence of starch in leaves is -
A.
Fehling's solution
B.
Iodine solution
C.
Million's reagent
D.
Benedict's solution
Ans:
Iodine solution
Explanation :
The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black color.
[25] Malaria can be cured with a drug extracted from -
A.
Belladonna tree
B.
Cinchona tree
C.
Oak tree
D.
Neem tree
Ans:
Cinchona tree
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
Explanation :
The kidneys are essential in the urinary system and also serve homeostatic functions such as the regulation of electrolytes, maintenance of acid-base balance, and regulation of blood pressure (via maintaining salt and water balance). They serve the body as a natural filter of the blood, and remove wastes which are diverted to the urinary bladder.
[18] The trace metal present in insulin is -
A.
iron
B.
zinc
C.
cobalt
D.
manganese
Ans:
zinc
Explanation :
Trace elements play important role in Insulin metabolism. The relationship between diabetes, insulin and zinc (Zn) is complex with no clear cause and effect relationships. Several of the complications of diabetes may be related to increased intracellular oxidants and free radicals associated with decreases in intracellular Zn and in Zn dependent antioxidant enzymes.
[19] Male mosquitoes -
A.
Suck blood
B.
Feed on plant juices
C.
Spread encephalitis
D.
Spread malaria
Ans:
Feed on plant juices
Explanation :
Typically, both male and female mosquitoes feed on nectar and plant juices, but in many species the mouthparts of the females are adapted for piercing the skin of animal hosts and sucking their blood as ectoparasites.
[20] Where is the Pineal Gland situated?
A.
in the Liver
B.
in the Brain
C.
in the Kidneys
D.
in the Uterus
Ans:
in the Brain
Explanation :
The pineal gland is a small endocrine gland in the vertebrate brain. It produces the serotonin derivative melatonin, a hormone that affects the modulation of wake/sleep patterns and, seasonal functions. Its shape resembles a tiny pine cone (hence its name), and it is located near the centre of the brain.
[21] Which of the following cells secrete insulin?
A.
Alpha cells
B.
Delta cells
C.
Nerve cells
D.
Beta cells
Ans:
Beta cells
Explanation :
Insulin is a hormone that is exclusively produced by pancreatic beta cells. Beta cells are located in the pancreas in clusters known as the islets of Langerhans. When the beta cell is appropriately stimulated, insulin is secreted from the cell by exocytosis and diffuses into islet capillary blood.
[22] In the human body, fats are stored in the -
A.
Epidermis
B.
Adipose tissue
C.
Liver
D.
Epithelium
Ans:
Adipose tissue
Explanation :
In humans, adipose tissue is located: beneath the skin (subcutaneous fat), around internal organs (visceral fat), in bone marrow (yellow bone marrow), intermuscular (Muscular system) and in the breast (breast tissue). Adipose tissue is found in specific locations, which are referred to as adipose depots.
[23] Blood pressure is measured with:
A.
Thermometer
B.
Barometer
C.
Sphygmomanometer
D.
Lactometer
Ans:
Sphygmomanometer
Explanation :
A sphygmomanometer, also known as a blood pressure meter, blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure. A sphygmomanometer has three parts: a cuff that can be inflated with air, a pressure meter (manometer) for measuring air pressure in the cuff, and a stethoscope for listening to the sound the blood makes as it flows through the brachial artery (the major artery found in your upper arm).
[24] The reagent used to test the presence of starch in leaves is -
A.
Fehling's solution
B.
Iodine solution
C.
Million's reagent
D.
Benedict's solution
Ans:
Iodine solution
Explanation :
The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black color.
[25] Malaria can be cured with a drug extracted from -
A.
Belladonna tree
B.
Cinchona tree
C.
Oak tree
D.
Neem tree
Ans:
Cinchona tree
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
Explanation :
Typically, both male and female mosquitoes feed on nectar and plant juices, but in many species the mouthparts of the females are adapted for piercing the skin of animal hosts and sucking their blood as ectoparasites.
[20] Where is the Pineal Gland situated?
A.
in the Liver
B.
in the Brain
C.
in the Kidneys
D.
in the Uterus
Ans:
in the Brain
Explanation :
The pineal gland is a small endocrine gland in the vertebrate brain. It produces the serotonin derivative melatonin, a hormone that affects the modulation of wake/sleep patterns and, seasonal functions. Its shape resembles a tiny pine cone (hence its name), and it is located near the centre of the brain.
[21] Which of the following cells secrete insulin?
A.
Alpha cells
B.
Delta cells
C.
Nerve cells
D.
Beta cells
Ans:
Beta cells
Explanation :
Insulin is a hormone that is exclusively produced by pancreatic beta cells. Beta cells are located in the pancreas in clusters known as the islets of Langerhans. When the beta cell is appropriately stimulated, insulin is secreted from the cell by exocytosis and diffuses into islet capillary blood.
[22] In the human body, fats are stored in the -
A.
Epidermis
B.
Adipose tissue
C.
Liver
D.
Epithelium
Ans:
Adipose tissue
Explanation :
In humans, adipose tissue is located: beneath the skin (subcutaneous fat), around internal organs (visceral fat), in bone marrow (yellow bone marrow), intermuscular (Muscular system) and in the breast (breast tissue). Adipose tissue is found in specific locations, which are referred to as adipose depots.
[23] Blood pressure is measured with:
A.
Thermometer
B.
Barometer
C.
Sphygmomanometer
D.
Lactometer
Ans:
Sphygmomanometer
Explanation :
A sphygmomanometer, also known as a blood pressure meter, blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure. A sphygmomanometer has three parts: a cuff that can be inflated with air, a pressure meter (manometer) for measuring air pressure in the cuff, and a stethoscope for listening to the sound the blood makes as it flows through the brachial artery (the major artery found in your upper arm).
[24] The reagent used to test the presence of starch in leaves is -
A.
Fehling's solution
B.
Iodine solution
C.
Million's reagent
D.
Benedict's solution
Ans:
Iodine solution
Explanation :
The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black color.
[25] Malaria can be cured with a drug extracted from -
A.
Belladonna tree
B.
Cinchona tree
C.
Oak tree
D.
Neem tree
Ans:
Cinchona tree
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
Explanation :
Insulin is a hormone that is exclusively produced by pancreatic beta cells. Beta cells are located in the pancreas in clusters known as the islets of Langerhans. When the beta cell is appropriately stimulated, insulin is secreted from the cell by exocytosis and diffuses into islet capillary blood.
[22] In the human body, fats are stored in the -
A.
Epidermis
B.
Adipose tissue
C.
Liver
D.
Epithelium
Ans:
Adipose tissue
Explanation :
In humans, adipose tissue is located: beneath the skin (subcutaneous fat), around internal organs (visceral fat), in bone marrow (yellow bone marrow), intermuscular (Muscular system) and in the breast (breast tissue). Adipose tissue is found in specific locations, which are referred to as adipose depots.
[23] Blood pressure is measured with:
A.
Thermometer
B.
Barometer
C.
Sphygmomanometer
D.
Lactometer
Ans:
Sphygmomanometer
Explanation :
A sphygmomanometer, also known as a blood pressure meter, blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure. A sphygmomanometer has three parts: a cuff that can be inflated with air, a pressure meter (manometer) for measuring air pressure in the cuff, and a stethoscope for listening to the sound the blood makes as it flows through the brachial artery (the major artery found in your upper arm).
[24] The reagent used to test the presence of starch in leaves is -
A.
Fehling's solution
B.
Iodine solution
C.
Million's reagent
D.
Benedict's solution
Ans:
Iodine solution
Explanation :
The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black color.
[25] Malaria can be cured with a drug extracted from -
A.
Belladonna tree
B.
Cinchona tree
C.
Oak tree
D.
Neem tree
Ans:
Cinchona tree
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
Explanation :
A sphygmomanometer, also known as a blood pressure meter, blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure. A sphygmomanometer has three parts: a cuff that can be inflated with air, a pressure meter (manometer) for measuring air pressure in the cuff, and a stethoscope for listening to the sound the blood makes as it flows through the brachial artery (the major artery found in your upper arm).
[24] The reagent used to test the presence of starch in leaves is -
A.
Fehling's solution
B.
Iodine solution
C.
Million's reagent
D.
Benedict's solution
Ans:
Iodine solution
Explanation :
The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black color.
[25] Malaria can be cured with a drug extracted from -
A.
Belladonna tree
B.
Cinchona tree
C.
Oak tree
D.
Neem tree
Ans:
Cinchona tree
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
Explanation :
Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.