[1] HIV is a -
A.
Combination of disease symptoms -
B.
developmental index
C.
viral disease
D.
retrovirus
Ans:
retrovirus
Explanation :
The retrovirus then integrates its viral DNA into the DNA of the host cell, which allows the retrovirus to replicate. HIV, the virus that causes AIDS, is a retrovirus.
[2] The deficiency of Niacin-a vitamin of B complex group causes the disease -
A.
Marasmus
B.
Pellagra
C.
Rickets
D.
Nightblindness
Ans:
Pellagra
Explanation :
Pellagra is a vitamin deficiency disease most frequently caused by a chronic lack of niacin (vitamin B3) in the diet. It can be caused by decreased intake of niacin or tryptophan, and possibly by excessive intake of leucine. It may also result from alterations in protein metabolism in disorders such as carcinoid syndrome or Hartnup disease.
[3] A pair of contrasting characters controlling the same trait is called -
A.
factors
B.
loci
C.
allele
D.
lineage
Ans:
allele
Explanation :
An allele is one of a pair of genes that appear at a particular location on a particular chromosome and control the same characteristic, such as blood type or colorblindness. Alleles are also called alleleomorphs. If the two alleles are identical, the individual is called a homozygote; when the two alleles are different, the individual is a heterozygote.
[4] Which of the following are also known as 'Suicidal Bag of Cells'?
A.
Lysosomes
B.
Lycosome
C.
Nucleus
D.
Chromosome
Ans:
Lysosomes
Explanation :
Lysosomes are found in animal cell, they are also known as suicidal bags of the cell. A human cell contains around 300 lysosomes. They not only digest large molecules but also responsible for breaking down and getting rid of waste products of the cell. They have enzymes which allow them to carry out these processes.
[5] The main protein found in milk is .
A.
Albumin
B.
Globulin
C.
Globin
D.
Casein
Ans:
Casein
Explanation :
The major proteins in milk are casein and whey. These two milk proteins are both excellent sources of all the essential amino acids, but they differ in one important aspect—whey is a fast-digesting protein and casein is a slow-digesting protein. As a food source, casein supplies amino acids, carbohydrates, and the two inorganic elements calcium and phosphorus.
[6] The liberation of oxygen during photosynthesis is due to -
A.
hydrolysis of carbohydrates
B.
photolysis of water
C.
reduction of CO2
D.
breakdown of chlorophyll
Ans:
photolysis of water
Explanation :
In the process of photosynthesis, oxygen is produced from the photolysis of water. The photolysis of water occurs when light is used to renew split water and adenosine triphosphate, also referred to as ATP. The hydrogen remains in the leaf and participates in further reactions.
[7] What is the main purpose of white blood corpuscles?
A.
to carry nutrients
B.
to combat infections
C.
to carry oxygen
D.
to give strength
Ans:
to combat infections
Explanation :
White blood cells (WBCs), also called leukocytes, are an important part of the immune system. These cells help fight infections by attacking bacteria, viruses, and germs that invade the body. White blood cells originate in the bone marrow, but circulate throughout the bloodstream.
[8] The oxygen liberated during photosynthesis comes from -
A.
Water
B.
Carbon dioxide
C.
Glucose
D.
Chlorophyll
Ans:
Water
Explanation :
The oxygen produced during photosynthesis comes from water. The electrons excited by light in the chlorophyll molecule are replaced by electrons produced from the oxidation of water into oxygen. Photosynthesis combines water and carbon dioxide into sugars, leaving oxygen gas as a waste product.
[9] Kyoto Protocol is associated with -
A.
Species conservation
B.
Climate change
C.
Wetland Conservation
D.
Medicinal plants
Ans:
Climate change
Explanation :
The Kyoto Protocol is an international agreement linked to the United Nations Framework Convention on Climate Change, which commits its Parties by setting internationally binding emission reduction targets. It was adopted in Kyoto, Japan, on 11 December 1997 and entered into force on 16 February 2005
[10] Which one of the following is also called as milk sugar?
A.
Glucose
B.
Fructose
C.
Maltose
D.
Lactose
Ans:
Lactose
Explanation :
The main sugar found in milk is known as lactose, which is a natural sugar that is made up of glucose and galactose. It provides a mildly sweet taste to milk. It makes up around 2-8% of the solids in milk. Lactase, found in the small intestine, breaks down lactose into two simpler forms of sugar: glucose and galactose, which is then absorbed by the body.
[11] The name of the longest muscle in human body is -
A.
Sartorius muscle
B.
Massete muscle
C.
Stapedius muscle
D.
Gluteus Maximus muscle
Ans:
Sartorius muscle
Explanation :
The Sartorius muscle is the longest muscle in the human body. It is a long, thin, superficial muscle that runs down the length of the thigh in the anterior compartment. Its upper portion forms the lateral border of the femoral triangle.
[12] A prokaryotic cell does not have which of the follow in -
A.
Ribosomes
B.
Cell membrane
C.
Nucleus
D.
DNA
Ans:
Nucleus
Explanation :
Prokaryotic cells do not contain a nucleus or any other membrane-bound organelle. The word "prokaryotic" means "before nucleus." Prokaryotes include two groups: bacteria and another group called archaea. In contrast, eukaryotic cells have true" nucleus containing their DNA.
[13] What would be the formula of Fructose?
A.
C5H10O5
B.
C6H12O6
C.
C6H10O5
D.
C6H10O8
Ans:
C6H12O6
Explanation :
Fructose, or fruit sugar, is a simple ketonic monosaccharide found in many plants, where it is often bonded to glucose to form the disaccharide sucrose. It is a 6-carbon polyhydroxy ketone with chemical formula of C6H12O6. Fructose was discovered by French chemist Augustin-Pierre Dubrunfaut in 1847.
[14] The basic unit of biosystematics is -
A.
Phenotype
B.
Ecotype
C.
Florotype
D.
Genotype
Ans:
Ecotype
Explanation :
Ecotype is the basic unit of Biosystematics. It is adapted to a particular environment but capable of producing fully fertile hybrids with other ecotypes. The term Ecotype was proposed by Turesson. According to him Ecotype is “an ecological unit to cover the product arising as a result of genotypical response of an ecospecies to a particular habitat.”
[15] Which endocrine gland is found in chest cavity?
A.
Pineal gland
B.
Thymus gland
C.
Adrenal gland
D.
Thyroid gland
Ans:
Thymus gland
Explanation :
The endocrine glands are widely distributed throughout the body. The pituitary gland, pineal gland and hypothalamus are located in the skull. The thyroid and parathyroid glands are in the neck, and the thymus gland is in the thoracic (chest) cavity. The thymus gland is only active until puberty. It helps the body protect itself against autoimmunity.
[16] In B.C.G. Vaccine the word 'C' stands for -
A.
Calmette
B.
Cough
C.
Chlorine
D.
Cadmium
Ans:
Calmette
Explanation :
The acronym BCG stands for Bacillus Calmette– Guérin, a vaccine against tuberculosis and for the treatment of some bladder cancers. It is prepared from a strain of the attenuated (virulence-reduced) live bovine tuberculosis bacillus, Mycobacterium bovis. It is on the World Health Organization’s List of Essential Medicines.
[17] The presence of pollutants in the environment is usually expressed in ppm, where ppm stands for:
A.
particles per mole
B.
purity per microgram
C.
pollutant prevent measures
D.
parts per million
Ans:
parts per million
Explanation :
PPM is an abbreviation of Parts Per Million. It is commonly used as a measure of small levels of pollutants in air, water, body fluids, etc. Parts per million is the mass ratio between the pollutant component and the solution.
[18] Which one of the following animals belongs to mollusca?
A.
Haliotis
B.
Hare
C.
Hydra
D.
Hyla
Ans:
Hare
Explanation :
Sea hares are molluscs. They belong to Phylum Mollusca and Class Gastropoda like snails. Like many other sea slugs (Subclass Opistobranchia), sea hares lack external shells as adults. Sea hares belong to Order Anaspidea.
[19] The site where complete digestion of carbohydrates, proteins and fats takes place is called -
A.
Liver
B.
Stomach
C.
Large Intestine
D.
Small Intestine
Ans:
Small Intestine
Explanation :
The small intestine is the site of the complete digestion of carbohydrates, proteins and fats. It receives the secretions of the liver and pancreas for this purpose.
[20] Polio is caused by -
A.
Bacteria
B.
Virus
C.
Fungus
D.
Protozoa
Ans:
Virus
Explanation :
Poliomyelitis, often called polio or infantile paralysis, is an infectious disease caused by the poliovirus.Poliovirus is usually spread from person to person through infected fecal matter entering the mouth. It may also be spread by food or water containing human feces and less commonly from infected saliva.
[21] Phototropic movement is controlled by -
A.
Auxin
B.
Gibberellin
C.
Cytolthiin
D.
Ethylene
Ans:
Auxin
Explanation :
Phototropism is the growth of organisms in response to light. In plants, phototropism is a response to blue wavelengths of light and is caused by a redistribution of auxin from the illuminated side to the darker side of the shoot, resulting in quicker growth on the darker side and bending of the shoot toward the source of light.
[22] Lactogenic hormone is secreted by -
A.
Mammary glands
B.
Placenta
C.
Ovary
D.
Pituitary
Ans:
Pituitary
Explanation :
Lactogenic hormone is gonadotropic hormone which is secreted by the anterior pituitary. In females, it stimulates growth of the mammary glands and lactation after parturition.
[23] The type of fruit obtained from a multicarpillary, apocarpous gynoecium is:
A.
composite
B.
aggregate
C.
simple
D.
multiple
Ans:
aggregate
Explanation :
Aggregate fruits are the group of fruitlets which develop from the multicarpellary, apocarpous ovary. Flowers with apocarpous multiple gynoecium are apt to give rise to a number of fruits as there are a number of free ovaries, each capable of giving rise to one fruit. Berries are good example of such fruits.
[24] The plants, which grow under water stress conditions of deserts are -
A.
Epiphytes
B.
Xerophytes
C.
Heliophytes
D.
Sciophytes
Ans:
Xerophytes
Explanation :
The term xerophyte refers to a plant species that has evolved over time to adapt to dry regions like deserts. Xerophytes have adapted to be able to keep extremely large amounts of water for a long period of time. Without this capability, the plant would die, as the desert region itself does not provide enough water to sustain life.
[25] Which of the following is an example of parasitic alga?
A.
Ulothrix
B.
Cephaleuros
C.
Oedogonium
D.
Sargassum
Ans:
Cephaleuros
Explanation :
Cephaleuros is a genus of parasitic thalloid algae comprising approximately 14 species. Its common name is red rust. The alga is parasitic on tea, coffee, mango and guava causing damage limited to the area of algal growth on leaves.
Explanation :
The retrovirus then integrates its viral DNA into the DNA of the host cell, which allows the retrovirus to replicate. HIV, the virus that causes AIDS, is a retrovirus.
[2] The deficiency of Niacin-a vitamin of B complex group causes the disease -
A.
Marasmus
B.
Pellagra
C.
Rickets
D.
Nightblindness
Ans:
Pellagra
Explanation :
Pellagra is a vitamin deficiency disease most frequently caused by a chronic lack of niacin (vitamin B3) in the diet. It can be caused by decreased intake of niacin or tryptophan, and possibly by excessive intake of leucine. It may also result from alterations in protein metabolism in disorders such as carcinoid syndrome or Hartnup disease.
[3] A pair of contrasting characters controlling the same trait is called -
A.
factors
B.
loci
C.
allele
D.
lineage
Ans:
allele
Explanation :
An allele is one of a pair of genes that appear at a particular location on a particular chromosome and control the same characteristic, such as blood type or colorblindness. Alleles are also called alleleomorphs. If the two alleles are identical, the individual is called a homozygote; when the two alleles are different, the individual is a heterozygote.
[4] Which of the following are also known as 'Suicidal Bag of Cells'?
A.
Lysosomes
B.
Lycosome
C.
Nucleus
D.
Chromosome
Ans:
Lysosomes
Explanation :
Lysosomes are found in animal cell, they are also known as suicidal bags of the cell. A human cell contains around 300 lysosomes. They not only digest large molecules but also responsible for breaking down and getting rid of waste products of the cell. They have enzymes which allow them to carry out these processes.
[5] The main protein found in milk is .
A.
Albumin
B.
Globulin
C.
Globin
D.
Casein
Ans:
Casein
Explanation :
The major proteins in milk are casein and whey. These two milk proteins are both excellent sources of all the essential amino acids, but they differ in one important aspect—whey is a fast-digesting protein and casein is a slow-digesting protein. As a food source, casein supplies amino acids, carbohydrates, and the two inorganic elements calcium and phosphorus.
[6] The liberation of oxygen during photosynthesis is due to -
A.
hydrolysis of carbohydrates
B.
photolysis of water
C.
reduction of CO2
D.
breakdown of chlorophyll
Ans:
photolysis of water
Explanation :
In the process of photosynthesis, oxygen is produced from the photolysis of water. The photolysis of water occurs when light is used to renew split water and adenosine triphosphate, also referred to as ATP. The hydrogen remains in the leaf and participates in further reactions.
[7] What is the main purpose of white blood corpuscles?
A.
to carry nutrients
B.
to combat infections
C.
to carry oxygen
D.
to give strength
Ans:
to combat infections
Explanation :
White blood cells (WBCs), also called leukocytes, are an important part of the immune system. These cells help fight infections by attacking bacteria, viruses, and germs that invade the body. White blood cells originate in the bone marrow, but circulate throughout the bloodstream.
[8] The oxygen liberated during photosynthesis comes from -
A.
Water
B.
Carbon dioxide
C.
Glucose
D.
Chlorophyll
Ans:
Water
Explanation :
The oxygen produced during photosynthesis comes from water. The electrons excited by light in the chlorophyll molecule are replaced by electrons produced from the oxidation of water into oxygen. Photosynthesis combines water and carbon dioxide into sugars, leaving oxygen gas as a waste product.
[9] Kyoto Protocol is associated with -
A.
Species conservation
B.
Climate change
C.
Wetland Conservation
D.
Medicinal plants
Ans:
Climate change
Explanation :
The Kyoto Protocol is an international agreement linked to the United Nations Framework Convention on Climate Change, which commits its Parties by setting internationally binding emission reduction targets. It was adopted in Kyoto, Japan, on 11 December 1997 and entered into force on 16 February 2005
[10] Which one of the following is also called as milk sugar?
A.
Glucose
B.
Fructose
C.
Maltose
D.
Lactose
Ans:
Lactose
Explanation :
The main sugar found in milk is known as lactose, which is a natural sugar that is made up of glucose and galactose. It provides a mildly sweet taste to milk. It makes up around 2-8% of the solids in milk. Lactase, found in the small intestine, breaks down lactose into two simpler forms of sugar: glucose and galactose, which is then absorbed by the body.
[11] The name of the longest muscle in human body is -
A.
Sartorius muscle
B.
Massete muscle
C.
Stapedius muscle
D.
Gluteus Maximus muscle
Ans:
Sartorius muscle
Explanation :
The Sartorius muscle is the longest muscle in the human body. It is a long, thin, superficial muscle that runs down the length of the thigh in the anterior compartment. Its upper portion forms the lateral border of the femoral triangle.
[12] A prokaryotic cell does not have which of the follow in -
A.
Ribosomes
B.
Cell membrane
C.
Nucleus
D.
DNA
Ans:
Nucleus
Explanation :
Prokaryotic cells do not contain a nucleus or any other membrane-bound organelle. The word "prokaryotic" means "before nucleus." Prokaryotes include two groups: bacteria and another group called archaea. In contrast, eukaryotic cells have true" nucleus containing their DNA.
[13] What would be the formula of Fructose?
A.
C5H10O5
B.
C6H12O6
C.
C6H10O5
D.
C6H10O8
Ans:
C6H12O6
Explanation :
Fructose, or fruit sugar, is a simple ketonic monosaccharide found in many plants, where it is often bonded to glucose to form the disaccharide sucrose. It is a 6-carbon polyhydroxy ketone with chemical formula of C6H12O6. Fructose was discovered by French chemist Augustin-Pierre Dubrunfaut in 1847.
[14] The basic unit of biosystematics is -
A.
Phenotype
B.
Ecotype
C.
Florotype
D.
Genotype
Ans:
Ecotype
Explanation :
Ecotype is the basic unit of Biosystematics. It is adapted to a particular environment but capable of producing fully fertile hybrids with other ecotypes. The term Ecotype was proposed by Turesson. According to him Ecotype is “an ecological unit to cover the product arising as a result of genotypical response of an ecospecies to a particular habitat.”
[15] Which endocrine gland is found in chest cavity?
A.
Pineal gland
B.
Thymus gland
C.
Adrenal gland
D.
Thyroid gland
Ans:
Thymus gland
Explanation :
The endocrine glands are widely distributed throughout the body. The pituitary gland, pineal gland and hypothalamus are located in the skull. The thyroid and parathyroid glands are in the neck, and the thymus gland is in the thoracic (chest) cavity. The thymus gland is only active until puberty. It helps the body protect itself against autoimmunity.
[16] In B.C.G. Vaccine the word 'C' stands for -
A.
Calmette
B.
Cough
C.
Chlorine
D.
Cadmium
Ans:
Calmette
Explanation :
The acronym BCG stands for Bacillus Calmette– Guérin, a vaccine against tuberculosis and for the treatment of some bladder cancers. It is prepared from a strain of the attenuated (virulence-reduced) live bovine tuberculosis bacillus, Mycobacterium bovis. It is on the World Health Organization’s List of Essential Medicines.
[17] The presence of pollutants in the environment is usually expressed in ppm, where ppm stands for:
A.
particles per mole
B.
purity per microgram
C.
pollutant prevent measures
D.
parts per million
Ans:
parts per million
Explanation :
PPM is an abbreviation of Parts Per Million. It is commonly used as a measure of small levels of pollutants in air, water, body fluids, etc. Parts per million is the mass ratio between the pollutant component and the solution.
[18] Which one of the following animals belongs to mollusca?
A.
Haliotis
B.
Hare
C.
Hydra
D.
Hyla
Ans:
Hare
Explanation :
Sea hares are molluscs. They belong to Phylum Mollusca and Class Gastropoda like snails. Like many other sea slugs (Subclass Opistobranchia), sea hares lack external shells as adults. Sea hares belong to Order Anaspidea.
[19] The site where complete digestion of carbohydrates, proteins and fats takes place is called -
A.
Liver
B.
Stomach
C.
Large Intestine
D.
Small Intestine
Ans:
Small Intestine
Explanation :
The small intestine is the site of the complete digestion of carbohydrates, proteins and fats. It receives the secretions of the liver and pancreas for this purpose.
[20] Polio is caused by -
A.
Bacteria
B.
Virus
C.
Fungus
D.
Protozoa
Ans:
Virus
Explanation :
Poliomyelitis, often called polio or infantile paralysis, is an infectious disease caused by the poliovirus.Poliovirus is usually spread from person to person through infected fecal matter entering the mouth. It may also be spread by food or water containing human feces and less commonly from infected saliva.
[21] Phototropic movement is controlled by -
A.
Auxin
B.
Gibberellin
C.
Cytolthiin
D.
Ethylene
Ans:
Auxin
Explanation :
Phototropism is the growth of organisms in response to light. In plants, phototropism is a response to blue wavelengths of light and is caused by a redistribution of auxin from the illuminated side to the darker side of the shoot, resulting in quicker growth on the darker side and bending of the shoot toward the source of light.
[22] Lactogenic hormone is secreted by -
A.
Mammary glands
B.
Placenta
C.
Ovary
D.
Pituitary
Ans:
Pituitary
Explanation :
Lactogenic hormone is gonadotropic hormone which is secreted by the anterior pituitary. In females, it stimulates growth of the mammary glands and lactation after parturition.
[23] The type of fruit obtained from a multicarpillary, apocarpous gynoecium is:
A.
composite
B.
aggregate
C.
simple
D.
multiple
Ans:
aggregate
Explanation :
Aggregate fruits are the group of fruitlets which develop from the multicarpellary, apocarpous ovary. Flowers with apocarpous multiple gynoecium are apt to give rise to a number of fruits as there are a number of free ovaries, each capable of giving rise to one fruit. Berries are good example of such fruits.
[24] The plants, which grow under water stress conditions of deserts are -
A.
Epiphytes
B.
Xerophytes
C.
Heliophytes
D.
Sciophytes
Ans:
Xerophytes
Explanation :
The term xerophyte refers to a plant species that has evolved over time to adapt to dry regions like deserts. Xerophytes have adapted to be able to keep extremely large amounts of water for a long period of time. Without this capability, the plant would die, as the desert region itself does not provide enough water to sustain life.
[25] Which of the following is an example of parasitic alga?
A.
Ulothrix
B.
Cephaleuros
C.
Oedogonium
D.
Sargassum
Ans:
Cephaleuros
Explanation :
Cephaleuros is a genus of parasitic thalloid algae comprising approximately 14 species. Its common name is red rust. The alga is parasitic on tea, coffee, mango and guava causing damage limited to the area of algal growth on leaves.
Explanation :
An allele is one of a pair of genes that appear at a particular location on a particular chromosome and control the same characteristic, such as blood type or colorblindness. Alleles are also called alleleomorphs. If the two alleles are identical, the individual is called a homozygote; when the two alleles are different, the individual is a heterozygote.
[4] Which of the following are also known as 'Suicidal Bag of Cells'?
A.
Lysosomes
B.
Lycosome
C.
Nucleus
D.
Chromosome
Ans:
Lysosomes
Explanation :
Lysosomes are found in animal cell, they are also known as suicidal bags of the cell. A human cell contains around 300 lysosomes. They not only digest large molecules but also responsible for breaking down and getting rid of waste products of the cell. They have enzymes which allow them to carry out these processes.
[5] The main protein found in milk is .
A.
Albumin
B.
Globulin
C.
Globin
D.
Casein
Ans:
Casein
Explanation :
The major proteins in milk are casein and whey. These two milk proteins are both excellent sources of all the essential amino acids, but they differ in one important aspect—whey is a fast-digesting protein and casein is a slow-digesting protein. As a food source, casein supplies amino acids, carbohydrates, and the two inorganic elements calcium and phosphorus.
[6] The liberation of oxygen during photosynthesis is due to -
A.
hydrolysis of carbohydrates
B.
photolysis of water
C.
reduction of CO2
D.
breakdown of chlorophyll
Ans:
photolysis of water
Explanation :
In the process of photosynthesis, oxygen is produced from the photolysis of water. The photolysis of water occurs when light is used to renew split water and adenosine triphosphate, also referred to as ATP. The hydrogen remains in the leaf and participates in further reactions.
[7] What is the main purpose of white blood corpuscles?
A.
to carry nutrients
B.
to combat infections
C.
to carry oxygen
D.
to give strength
Ans:
to combat infections
Explanation :
White blood cells (WBCs), also called leukocytes, are an important part of the immune system. These cells help fight infections by attacking bacteria, viruses, and germs that invade the body. White blood cells originate in the bone marrow, but circulate throughout the bloodstream.
[8] The oxygen liberated during photosynthesis comes from -
A.
Water
B.
Carbon dioxide
C.
Glucose
D.
Chlorophyll
Ans:
Water
Explanation :
The oxygen produced during photosynthesis comes from water. The electrons excited by light in the chlorophyll molecule are replaced by electrons produced from the oxidation of water into oxygen. Photosynthesis combines water and carbon dioxide into sugars, leaving oxygen gas as a waste product.
[9] Kyoto Protocol is associated with -
A.
Species conservation
B.
Climate change
C.
Wetland Conservation
D.
Medicinal plants
Ans:
Climate change
Explanation :
The Kyoto Protocol is an international agreement linked to the United Nations Framework Convention on Climate Change, which commits its Parties by setting internationally binding emission reduction targets. It was adopted in Kyoto, Japan, on 11 December 1997 and entered into force on 16 February 2005
[10] Which one of the following is also called as milk sugar?
A.
Glucose
B.
Fructose
C.
Maltose
D.
Lactose
Ans:
Lactose
Explanation :
The main sugar found in milk is known as lactose, which is a natural sugar that is made up of glucose and galactose. It provides a mildly sweet taste to milk. It makes up around 2-8% of the solids in milk. Lactase, found in the small intestine, breaks down lactose into two simpler forms of sugar: glucose and galactose, which is then absorbed by the body.
[11] The name of the longest muscle in human body is -
A.
Sartorius muscle
B.
Massete muscle
C.
Stapedius muscle
D.
Gluteus Maximus muscle
Ans:
Sartorius muscle
Explanation :
The Sartorius muscle is the longest muscle in the human body. It is a long, thin, superficial muscle that runs down the length of the thigh in the anterior compartment. Its upper portion forms the lateral border of the femoral triangle.
[12] A prokaryotic cell does not have which of the follow in -
A.
Ribosomes
B.
Cell membrane
C.
Nucleus
D.
DNA
Ans:
Nucleus
Explanation :
Prokaryotic cells do not contain a nucleus or any other membrane-bound organelle. The word "prokaryotic" means "before nucleus." Prokaryotes include two groups: bacteria and another group called archaea. In contrast, eukaryotic cells have true" nucleus containing their DNA.
[13] What would be the formula of Fructose?
A.
C5H10O5
B.
C6H12O6
C.
C6H10O5
D.
C6H10O8
Ans:
C6H12O6
Explanation :
Fructose, or fruit sugar, is a simple ketonic monosaccharide found in many plants, where it is often bonded to glucose to form the disaccharide sucrose. It is a 6-carbon polyhydroxy ketone with chemical formula of C6H12O6. Fructose was discovered by French chemist Augustin-Pierre Dubrunfaut in 1847.
[14] The basic unit of biosystematics is -
A.
Phenotype
B.
Ecotype
C.
Florotype
D.
Genotype
Ans:
Ecotype
Explanation :
Ecotype is the basic unit of Biosystematics. It is adapted to a particular environment but capable of producing fully fertile hybrids with other ecotypes. The term Ecotype was proposed by Turesson. According to him Ecotype is “an ecological unit to cover the product arising as a result of genotypical response of an ecospecies to a particular habitat.”
[15] Which endocrine gland is found in chest cavity?
A.
Pineal gland
B.
Thymus gland
C.
Adrenal gland
D.
Thyroid gland
Ans:
Thymus gland
Explanation :
The endocrine glands are widely distributed throughout the body. The pituitary gland, pineal gland and hypothalamus are located in the skull. The thyroid and parathyroid glands are in the neck, and the thymus gland is in the thoracic (chest) cavity. The thymus gland is only active until puberty. It helps the body protect itself against autoimmunity.
[16] In B.C.G. Vaccine the word 'C' stands for -
A.
Calmette
B.
Cough
C.
Chlorine
D.
Cadmium
Ans:
Calmette
Explanation :
The acronym BCG stands for Bacillus Calmette– Guérin, a vaccine against tuberculosis and for the treatment of some bladder cancers. It is prepared from a strain of the attenuated (virulence-reduced) live bovine tuberculosis bacillus, Mycobacterium bovis. It is on the World Health Organization’s List of Essential Medicines.
[17] The presence of pollutants in the environment is usually expressed in ppm, where ppm stands for:
A.
particles per mole
B.
purity per microgram
C.
pollutant prevent measures
D.
parts per million
Ans:
parts per million
Explanation :
PPM is an abbreviation of Parts Per Million. It is commonly used as a measure of small levels of pollutants in air, water, body fluids, etc. Parts per million is the mass ratio between the pollutant component and the solution.
[18] Which one of the following animals belongs to mollusca?
A.
Haliotis
B.
Hare
C.
Hydra
D.
Hyla
Ans:
Hare
Explanation :
Sea hares are molluscs. They belong to Phylum Mollusca and Class Gastropoda like snails. Like many other sea slugs (Subclass Opistobranchia), sea hares lack external shells as adults. Sea hares belong to Order Anaspidea.
[19] The site where complete digestion of carbohydrates, proteins and fats takes place is called -
A.
Liver
B.
Stomach
C.
Large Intestine
D.
Small Intestine
Ans:
Small Intestine
Explanation :
The small intestine is the site of the complete digestion of carbohydrates, proteins and fats. It receives the secretions of the liver and pancreas for this purpose.
[20] Polio is caused by -
A.
Bacteria
B.
Virus
C.
Fungus
D.
Protozoa
Ans:
Virus
Explanation :
Poliomyelitis, often called polio or infantile paralysis, is an infectious disease caused by the poliovirus.Poliovirus is usually spread from person to person through infected fecal matter entering the mouth. It may also be spread by food or water containing human feces and less commonly from infected saliva.
[21] Phototropic movement is controlled by -
A.
Auxin
B.
Gibberellin
C.
Cytolthiin
D.
Ethylene
Ans:
Auxin
Explanation :
Phototropism is the growth of organisms in response to light. In plants, phototropism is a response to blue wavelengths of light and is caused by a redistribution of auxin from the illuminated side to the darker side of the shoot, resulting in quicker growth on the darker side and bending of the shoot toward the source of light.
[22] Lactogenic hormone is secreted by -
A.
Mammary glands
B.
Placenta
C.
Ovary
D.
Pituitary
Ans:
Pituitary
Explanation :
Lactogenic hormone is gonadotropic hormone which is secreted by the anterior pituitary. In females, it stimulates growth of the mammary glands and lactation after parturition.
[23] The type of fruit obtained from a multicarpillary, apocarpous gynoecium is:
A.
composite
B.
aggregate
C.
simple
D.
multiple
Ans:
aggregate
Explanation :
Aggregate fruits are the group of fruitlets which develop from the multicarpellary, apocarpous ovary. Flowers with apocarpous multiple gynoecium are apt to give rise to a number of fruits as there are a number of free ovaries, each capable of giving rise to one fruit. Berries are good example of such fruits.
[24] The plants, which grow under water stress conditions of deserts are -
A.
Epiphytes
B.
Xerophytes
C.
Heliophytes
D.
Sciophytes
Ans:
Xerophytes
Explanation :
The term xerophyte refers to a plant species that has evolved over time to adapt to dry regions like deserts. Xerophytes have adapted to be able to keep extremely large amounts of water for a long period of time. Without this capability, the plant would die, as the desert region itself does not provide enough water to sustain life.
[25] Which of the following is an example of parasitic alga?
A.
Ulothrix
B.
Cephaleuros
C.
Oedogonium
D.
Sargassum
Ans:
Cephaleuros
Explanation :
Cephaleuros is a genus of parasitic thalloid algae comprising approximately 14 species. Its common name is red rust. The alga is parasitic on tea, coffee, mango and guava causing damage limited to the area of algal growth on leaves.
Explanation :
The major proteins in milk are casein and whey. These two milk proteins are both excellent sources of all the essential amino acids, but they differ in one important aspect—whey is a fast-digesting protein and casein is a slow-digesting protein. As a food source, casein supplies amino acids, carbohydrates, and the two inorganic elements calcium and phosphorus.
[6] The liberation of oxygen during photosynthesis is due to -
A.
hydrolysis of carbohydrates
B.
photolysis of water
C.
reduction of CO2
D.
breakdown of chlorophyll
Ans:
photolysis of water
Explanation :
In the process of photosynthesis, oxygen is produced from the photolysis of water. The photolysis of water occurs when light is used to renew split water and adenosine triphosphate, also referred to as ATP. The hydrogen remains in the leaf and participates in further reactions.
[7] What is the main purpose of white blood corpuscles?
A.
to carry nutrients
B.
to combat infections
C.
to carry oxygen
D.
to give strength
Ans:
to combat infections
Explanation :
White blood cells (WBCs), also called leukocytes, are an important part of the immune system. These cells help fight infections by attacking bacteria, viruses, and germs that invade the body. White blood cells originate in the bone marrow, but circulate throughout the bloodstream.
[8] The oxygen liberated during photosynthesis comes from -
A.
Water
B.
Carbon dioxide
C.
Glucose
D.
Chlorophyll
Ans:
Water
Explanation :
The oxygen produced during photosynthesis comes from water. The electrons excited by light in the chlorophyll molecule are replaced by electrons produced from the oxidation of water into oxygen. Photosynthesis combines water and carbon dioxide into sugars, leaving oxygen gas as a waste product.
[9] Kyoto Protocol is associated with -
A.
Species conservation
B.
Climate change
C.
Wetland Conservation
D.
Medicinal plants
Ans:
Climate change
Explanation :
The Kyoto Protocol is an international agreement linked to the United Nations Framework Convention on Climate Change, which commits its Parties by setting internationally binding emission reduction targets. It was adopted in Kyoto, Japan, on 11 December 1997 and entered into force on 16 February 2005
[10] Which one of the following is also called as milk sugar?
A.
Glucose
B.
Fructose
C.
Maltose
D.
Lactose
Ans:
Lactose
Explanation :
The main sugar found in milk is known as lactose, which is a natural sugar that is made up of glucose and galactose. It provides a mildly sweet taste to milk. It makes up around 2-8% of the solids in milk. Lactase, found in the small intestine, breaks down lactose into two simpler forms of sugar: glucose and galactose, which is then absorbed by the body.
[11] The name of the longest muscle in human body is -
A.
Sartorius muscle
B.
Massete muscle
C.
Stapedius muscle
D.
Gluteus Maximus muscle
Ans:
Sartorius muscle
Explanation :
The Sartorius muscle is the longest muscle in the human body. It is a long, thin, superficial muscle that runs down the length of the thigh in the anterior compartment. Its upper portion forms the lateral border of the femoral triangle.
[12] A prokaryotic cell does not have which of the follow in -
A.
Ribosomes
B.
Cell membrane
C.
Nucleus
D.
DNA
Ans:
Nucleus
Explanation :
Prokaryotic cells do not contain a nucleus or any other membrane-bound organelle. The word "prokaryotic" means "before nucleus." Prokaryotes include two groups: bacteria and another group called archaea. In contrast, eukaryotic cells have true" nucleus containing their DNA.
[13] What would be the formula of Fructose?
A.
C5H10O5
B.
C6H12O6
C.
C6H10O5
D.
C6H10O8
Ans:
C6H12O6
Explanation :
Fructose, or fruit sugar, is a simple ketonic monosaccharide found in many plants, where it is often bonded to glucose to form the disaccharide sucrose. It is a 6-carbon polyhydroxy ketone with chemical formula of C6H12O6. Fructose was discovered by French chemist Augustin-Pierre Dubrunfaut in 1847.
[14] The basic unit of biosystematics is -
A.
Phenotype
B.
Ecotype
C.
Florotype
D.
Genotype
Ans:
Ecotype
Explanation :
Ecotype is the basic unit of Biosystematics. It is adapted to a particular environment but capable of producing fully fertile hybrids with other ecotypes. The term Ecotype was proposed by Turesson. According to him Ecotype is “an ecological unit to cover the product arising as a result of genotypical response of an ecospecies to a particular habitat.”
[15] Which endocrine gland is found in chest cavity?
A.
Pineal gland
B.
Thymus gland
C.
Adrenal gland
D.
Thyroid gland
Ans:
Thymus gland
Explanation :
The endocrine glands are widely distributed throughout the body. The pituitary gland, pineal gland and hypothalamus are located in the skull. The thyroid and parathyroid glands are in the neck, and the thymus gland is in the thoracic (chest) cavity. The thymus gland is only active until puberty. It helps the body protect itself against autoimmunity.
[16] In B.C.G. Vaccine the word 'C' stands for -
A.
Calmette
B.
Cough
C.
Chlorine
D.
Cadmium
Ans:
Calmette
Explanation :
The acronym BCG stands for Bacillus Calmette– Guérin, a vaccine against tuberculosis and for the treatment of some bladder cancers. It is prepared from a strain of the attenuated (virulence-reduced) live bovine tuberculosis bacillus, Mycobacterium bovis. It is on the World Health Organization’s List of Essential Medicines.
[17] The presence of pollutants in the environment is usually expressed in ppm, where ppm stands for:
A.
particles per mole
B.
purity per microgram
C.
pollutant prevent measures
D.
parts per million
Ans:
parts per million
Explanation :
PPM is an abbreviation of Parts Per Million. It is commonly used as a measure of small levels of pollutants in air, water, body fluids, etc. Parts per million is the mass ratio between the pollutant component and the solution.
[18] Which one of the following animals belongs to mollusca?
A.
Haliotis
B.
Hare
C.
Hydra
D.
Hyla
Ans:
Hare
Explanation :
Sea hares are molluscs. They belong to Phylum Mollusca and Class Gastropoda like snails. Like many other sea slugs (Subclass Opistobranchia), sea hares lack external shells as adults. Sea hares belong to Order Anaspidea.
[19] The site where complete digestion of carbohydrates, proteins and fats takes place is called -
A.
Liver
B.
Stomach
C.
Large Intestine
D.
Small Intestine
Ans:
Small Intestine
Explanation :
The small intestine is the site of the complete digestion of carbohydrates, proteins and fats. It receives the secretions of the liver and pancreas for this purpose.
[20] Polio is caused by -
A.
Bacteria
B.
Virus
C.
Fungus
D.
Protozoa
Ans:
Virus
Explanation :
Poliomyelitis, often called polio or infantile paralysis, is an infectious disease caused by the poliovirus.Poliovirus is usually spread from person to person through infected fecal matter entering the mouth. It may also be spread by food or water containing human feces and less commonly from infected saliva.
[21] Phototropic movement is controlled by -
A.
Auxin
B.
Gibberellin
C.
Cytolthiin
D.
Ethylene
Ans:
Auxin
Explanation :
Phototropism is the growth of organisms in response to light. In plants, phototropism is a response to blue wavelengths of light and is caused by a redistribution of auxin from the illuminated side to the darker side of the shoot, resulting in quicker growth on the darker side and bending of the shoot toward the source of light.
[22] Lactogenic hormone is secreted by -
A.
Mammary glands
B.
Placenta
C.
Ovary
D.
Pituitary
Ans:
Pituitary
Explanation :
Lactogenic hormone is gonadotropic hormone which is secreted by the anterior pituitary. In females, it stimulates growth of the mammary glands and lactation after parturition.
[23] The type of fruit obtained from a multicarpillary, apocarpous gynoecium is:
A.
composite
B.
aggregate
C.
simple
D.
multiple
Ans:
aggregate
Explanation :
Aggregate fruits are the group of fruitlets which develop from the multicarpellary, apocarpous ovary. Flowers with apocarpous multiple gynoecium are apt to give rise to a number of fruits as there are a number of free ovaries, each capable of giving rise to one fruit. Berries are good example of such fruits.
[24] The plants, which grow under water stress conditions of deserts are -
A.
Epiphytes
B.
Xerophytes
C.
Heliophytes
D.
Sciophytes
Ans:
Xerophytes
Explanation :
The term xerophyte refers to a plant species that has evolved over time to adapt to dry regions like deserts. Xerophytes have adapted to be able to keep extremely large amounts of water for a long period of time. Without this capability, the plant would die, as the desert region itself does not provide enough water to sustain life.
[25] Which of the following is an example of parasitic alga?
A.
Ulothrix
B.
Cephaleuros
C.
Oedogonium
D.
Sargassum
Ans:
Cephaleuros
Explanation :
Cephaleuros is a genus of parasitic thalloid algae comprising approximately 14 species. Its common name is red rust. The alga is parasitic on tea, coffee, mango and guava causing damage limited to the area of algal growth on leaves.
Explanation :
White blood cells (WBCs), also called leukocytes, are an important part of the immune system. These cells help fight infections by attacking bacteria, viruses, and germs that invade the body. White blood cells originate in the bone marrow, but circulate throughout the bloodstream.
[8] The oxygen liberated during photosynthesis comes from -
A.
Water
B.
Carbon dioxide
C.
Glucose
D.
Chlorophyll
Ans:
Water
Explanation :
The oxygen produced during photosynthesis comes from water. The electrons excited by light in the chlorophyll molecule are replaced by electrons produced from the oxidation of water into oxygen. Photosynthesis combines water and carbon dioxide into sugars, leaving oxygen gas as a waste product.
[9] Kyoto Protocol is associated with -
A.
Species conservation
B.
Climate change
C.
Wetland Conservation
D.
Medicinal plants
Ans:
Climate change
Explanation :
The Kyoto Protocol is an international agreement linked to the United Nations Framework Convention on Climate Change, which commits its Parties by setting internationally binding emission reduction targets. It was adopted in Kyoto, Japan, on 11 December 1997 and entered into force on 16 February 2005
[10] Which one of the following is also called as milk sugar?
A.
Glucose
B.
Fructose
C.
Maltose
D.
Lactose
Ans:
Lactose
Explanation :
The main sugar found in milk is known as lactose, which is a natural sugar that is made up of glucose and galactose. It provides a mildly sweet taste to milk. It makes up around 2-8% of the solids in milk. Lactase, found in the small intestine, breaks down lactose into two simpler forms of sugar: glucose and galactose, which is then absorbed by the body.
[11] The name of the longest muscle in human body is -
A.
Sartorius muscle
B.
Massete muscle
C.
Stapedius muscle
D.
Gluteus Maximus muscle
Ans:
Sartorius muscle
Explanation :
The Sartorius muscle is the longest muscle in the human body. It is a long, thin, superficial muscle that runs down the length of the thigh in the anterior compartment. Its upper portion forms the lateral border of the femoral triangle.
[12] A prokaryotic cell does not have which of the follow in -
A.
Ribosomes
B.
Cell membrane
C.
Nucleus
D.
DNA
Ans:
Nucleus
Explanation :
Prokaryotic cells do not contain a nucleus or any other membrane-bound organelle. The word "prokaryotic" means "before nucleus." Prokaryotes include two groups: bacteria and another group called archaea. In contrast, eukaryotic cells have true" nucleus containing their DNA.
[13] What would be the formula of Fructose?
A.
C5H10O5
B.
C6H12O6
C.
C6H10O5
D.
C6H10O8
Ans:
C6H12O6
Explanation :
Fructose, or fruit sugar, is a simple ketonic monosaccharide found in many plants, where it is often bonded to glucose to form the disaccharide sucrose. It is a 6-carbon polyhydroxy ketone with chemical formula of C6H12O6. Fructose was discovered by French chemist Augustin-Pierre Dubrunfaut in 1847.
[14] The basic unit of biosystematics is -
A.
Phenotype
B.
Ecotype
C.
Florotype
D.
Genotype
Ans:
Ecotype
Explanation :
Ecotype is the basic unit of Biosystematics. It is adapted to a particular environment but capable of producing fully fertile hybrids with other ecotypes. The term Ecotype was proposed by Turesson. According to him Ecotype is “an ecological unit to cover the product arising as a result of genotypical response of an ecospecies to a particular habitat.”
[15] Which endocrine gland is found in chest cavity?
A.
Pineal gland
B.
Thymus gland
C.
Adrenal gland
D.
Thyroid gland
Ans:
Thymus gland
Explanation :
The endocrine glands are widely distributed throughout the body. The pituitary gland, pineal gland and hypothalamus are located in the skull. The thyroid and parathyroid glands are in the neck, and the thymus gland is in the thoracic (chest) cavity. The thymus gland is only active until puberty. It helps the body protect itself against autoimmunity.
[16] In B.C.G. Vaccine the word 'C' stands for -
A.
Calmette
B.
Cough
C.
Chlorine
D.
Cadmium
Ans:
Calmette
Explanation :
The acronym BCG stands for Bacillus Calmette– Guérin, a vaccine against tuberculosis and for the treatment of some bladder cancers. It is prepared from a strain of the attenuated (virulence-reduced) live bovine tuberculosis bacillus, Mycobacterium bovis. It is on the World Health Organization’s List of Essential Medicines.
[17] The presence of pollutants in the environment is usually expressed in ppm, where ppm stands for:
A.
particles per mole
B.
purity per microgram
C.
pollutant prevent measures
D.
parts per million
Ans:
parts per million
Explanation :
PPM is an abbreviation of Parts Per Million. It is commonly used as a measure of small levels of pollutants in air, water, body fluids, etc. Parts per million is the mass ratio between the pollutant component and the solution.
[18] Which one of the following animals belongs to mollusca?
A.
Haliotis
B.
Hare
C.
Hydra
D.
Hyla
Ans:
Hare
Explanation :
Sea hares are molluscs. They belong to Phylum Mollusca and Class Gastropoda like snails. Like many other sea slugs (Subclass Opistobranchia), sea hares lack external shells as adults. Sea hares belong to Order Anaspidea.
[19] The site where complete digestion of carbohydrates, proteins and fats takes place is called -
A.
Liver
B.
Stomach
C.
Large Intestine
D.
Small Intestine
Ans:
Small Intestine
Explanation :
The small intestine is the site of the complete digestion of carbohydrates, proteins and fats. It receives the secretions of the liver and pancreas for this purpose.
[20] Polio is caused by -
A.
Bacteria
B.
Virus
C.
Fungus
D.
Protozoa
Ans:
Virus
Explanation :
Poliomyelitis, often called polio or infantile paralysis, is an infectious disease caused by the poliovirus.Poliovirus is usually spread from person to person through infected fecal matter entering the mouth. It may also be spread by food or water containing human feces and less commonly from infected saliva.
[21] Phototropic movement is controlled by -
A.
Auxin
B.
Gibberellin
C.
Cytolthiin
D.
Ethylene
Ans:
Auxin
Explanation :
Phototropism is the growth of organisms in response to light. In plants, phototropism is a response to blue wavelengths of light and is caused by a redistribution of auxin from the illuminated side to the darker side of the shoot, resulting in quicker growth on the darker side and bending of the shoot toward the source of light.
[22] Lactogenic hormone is secreted by -
A.
Mammary glands
B.
Placenta
C.
Ovary
D.
Pituitary
Ans:
Pituitary
Explanation :
Lactogenic hormone is gonadotropic hormone which is secreted by the anterior pituitary. In females, it stimulates growth of the mammary glands and lactation after parturition.
[23] The type of fruit obtained from a multicarpillary, apocarpous gynoecium is:
A.
composite
B.
aggregate
C.
simple
D.
multiple
Ans:
aggregate
Explanation :
Aggregate fruits are the group of fruitlets which develop from the multicarpellary, apocarpous ovary. Flowers with apocarpous multiple gynoecium are apt to give rise to a number of fruits as there are a number of free ovaries, each capable of giving rise to one fruit. Berries are good example of such fruits.
[24] The plants, which grow under water stress conditions of deserts are -
A.
Epiphytes
B.
Xerophytes
C.
Heliophytes
D.
Sciophytes
Ans:
Xerophytes
Explanation :
The term xerophyte refers to a plant species that has evolved over time to adapt to dry regions like deserts. Xerophytes have adapted to be able to keep extremely large amounts of water for a long period of time. Without this capability, the plant would die, as the desert region itself does not provide enough water to sustain life.
[25] Which of the following is an example of parasitic alga?
A.
Ulothrix
B.
Cephaleuros
C.
Oedogonium
D.
Sargassum
Ans:
Cephaleuros
Explanation :
Cephaleuros is a genus of parasitic thalloid algae comprising approximately 14 species. Its common name is red rust. The alga is parasitic on tea, coffee, mango and guava causing damage limited to the area of algal growth on leaves.
Explanation :
The Kyoto Protocol is an international agreement linked to the United Nations Framework Convention on Climate Change, which commits its Parties by setting internationally binding emission reduction targets. It was adopted in Kyoto, Japan, on 11 December 1997 and entered into force on 16 February 2005
[10] Which one of the following is also called as milk sugar?
A.
Glucose
B.
Fructose
C.
Maltose
D.
Lactose
Ans:
Lactose
Explanation :
The main sugar found in milk is known as lactose, which is a natural sugar that is made up of glucose and galactose. It provides a mildly sweet taste to milk. It makes up around 2-8% of the solids in milk. Lactase, found in the small intestine, breaks down lactose into two simpler forms of sugar: glucose and galactose, which is then absorbed by the body.
[11] The name of the longest muscle in human body is -
A.
Sartorius muscle
B.
Massete muscle
C.
Stapedius muscle
D.
Gluteus Maximus muscle
Ans:
Sartorius muscle
Explanation :
The Sartorius muscle is the longest muscle in the human body. It is a long, thin, superficial muscle that runs down the length of the thigh in the anterior compartment. Its upper portion forms the lateral border of the femoral triangle.
[12] A prokaryotic cell does not have which of the follow in -
A.
Ribosomes
B.
Cell membrane
C.
Nucleus
D.
DNA
Ans:
Nucleus
Explanation :
Prokaryotic cells do not contain a nucleus or any other membrane-bound organelle. The word "prokaryotic" means "before nucleus." Prokaryotes include two groups: bacteria and another group called archaea. In contrast, eukaryotic cells have true" nucleus containing their DNA.
[13] What would be the formula of Fructose?
A.
C5H10O5
B.
C6H12O6
C.
C6H10O5
D.
C6H10O8
Ans:
C6H12O6
Explanation :
Fructose, or fruit sugar, is a simple ketonic monosaccharide found in many plants, where it is often bonded to glucose to form the disaccharide sucrose. It is a 6-carbon polyhydroxy ketone with chemical formula of C6H12O6. Fructose was discovered by French chemist Augustin-Pierre Dubrunfaut in 1847.
[14] The basic unit of biosystematics is -
A.
Phenotype
B.
Ecotype
C.
Florotype
D.
Genotype
Ans:
Ecotype
Explanation :
Ecotype is the basic unit of Biosystematics. It is adapted to a particular environment but capable of producing fully fertile hybrids with other ecotypes. The term Ecotype was proposed by Turesson. According to him Ecotype is “an ecological unit to cover the product arising as a result of genotypical response of an ecospecies to a particular habitat.”
[15] Which endocrine gland is found in chest cavity?
A.
Pineal gland
B.
Thymus gland
C.
Adrenal gland
D.
Thyroid gland
Ans:
Thymus gland
Explanation :
The endocrine glands are widely distributed throughout the body. The pituitary gland, pineal gland and hypothalamus are located in the skull. The thyroid and parathyroid glands are in the neck, and the thymus gland is in the thoracic (chest) cavity. The thymus gland is only active until puberty. It helps the body protect itself against autoimmunity.
[16] In B.C.G. Vaccine the word 'C' stands for -
A.
Calmette
B.
Cough
C.
Chlorine
D.
Cadmium
Ans:
Calmette
Explanation :
The acronym BCG stands for Bacillus Calmette– Guérin, a vaccine against tuberculosis and for the treatment of some bladder cancers. It is prepared from a strain of the attenuated (virulence-reduced) live bovine tuberculosis bacillus, Mycobacterium bovis. It is on the World Health Organization’s List of Essential Medicines.
[17] The presence of pollutants in the environment is usually expressed in ppm, where ppm stands for:
A.
particles per mole
B.
purity per microgram
C.
pollutant prevent measures
D.
parts per million
Ans:
parts per million
Explanation :
PPM is an abbreviation of Parts Per Million. It is commonly used as a measure of small levels of pollutants in air, water, body fluids, etc. Parts per million is the mass ratio between the pollutant component and the solution.
[18] Which one of the following animals belongs to mollusca?
A.
Haliotis
B.
Hare
C.
Hydra
D.
Hyla
Ans:
Hare
Explanation :
Sea hares are molluscs. They belong to Phylum Mollusca and Class Gastropoda like snails. Like many other sea slugs (Subclass Opistobranchia), sea hares lack external shells as adults. Sea hares belong to Order Anaspidea.
[19] The site where complete digestion of carbohydrates, proteins and fats takes place is called -
A.
Liver
B.
Stomach
C.
Large Intestine
D.
Small Intestine
Ans:
Small Intestine
Explanation :
The small intestine is the site of the complete digestion of carbohydrates, proteins and fats. It receives the secretions of the liver and pancreas for this purpose.
[20] Polio is caused by -
A.
Bacteria
B.
Virus
C.
Fungus
D.
Protozoa
Ans:
Virus
Explanation :
Poliomyelitis, often called polio or infantile paralysis, is an infectious disease caused by the poliovirus.Poliovirus is usually spread from person to person through infected fecal matter entering the mouth. It may also be spread by food or water containing human feces and less commonly from infected saliva.
[21] Phototropic movement is controlled by -
A.
Auxin
B.
Gibberellin
C.
Cytolthiin
D.
Ethylene
Ans:
Auxin
Explanation :
Phototropism is the growth of organisms in response to light. In plants, phototropism is a response to blue wavelengths of light and is caused by a redistribution of auxin from the illuminated side to the darker side of the shoot, resulting in quicker growth on the darker side and bending of the shoot toward the source of light.
[22] Lactogenic hormone is secreted by -
A.
Mammary glands
B.
Placenta
C.
Ovary
D.
Pituitary
Ans:
Pituitary
Explanation :
Lactogenic hormone is gonadotropic hormone which is secreted by the anterior pituitary. In females, it stimulates growth of the mammary glands and lactation after parturition.
[23] The type of fruit obtained from a multicarpillary, apocarpous gynoecium is:
A.
composite
B.
aggregate
C.
simple
D.
multiple
Ans:
aggregate
Explanation :
Aggregate fruits are the group of fruitlets which develop from the multicarpellary, apocarpous ovary. Flowers with apocarpous multiple gynoecium are apt to give rise to a number of fruits as there are a number of free ovaries, each capable of giving rise to one fruit. Berries are good example of such fruits.
[24] The plants, which grow under water stress conditions of deserts are -
A.
Epiphytes
B.
Xerophytes
C.
Heliophytes
D.
Sciophytes
Ans:
Xerophytes
Explanation :
The term xerophyte refers to a plant species that has evolved over time to adapt to dry regions like deserts. Xerophytes have adapted to be able to keep extremely large amounts of water for a long period of time. Without this capability, the plant would die, as the desert region itself does not provide enough water to sustain life.
[25] Which of the following is an example of parasitic alga?
A.
Ulothrix
B.
Cephaleuros
C.
Oedogonium
D.
Sargassum
Ans:
Cephaleuros
Explanation :
Cephaleuros is a genus of parasitic thalloid algae comprising approximately 14 species. Its common name is red rust. The alga is parasitic on tea, coffee, mango and guava causing damage limited to the area of algal growth on leaves.
Explanation :
The Sartorius muscle is the longest muscle in the human body. It is a long, thin, superficial muscle that runs down the length of the thigh in the anterior compartment. Its upper portion forms the lateral border of the femoral triangle.
[12] A prokaryotic cell does not have which of the follow in -
A.
Ribosomes
B.
Cell membrane
C.
Nucleus
D.
DNA
Ans:
Nucleus
Explanation :
Prokaryotic cells do not contain a nucleus or any other membrane-bound organelle. The word "prokaryotic" means "before nucleus." Prokaryotes include two groups: bacteria and another group called archaea. In contrast, eukaryotic cells have true" nucleus containing their DNA.
[13] What would be the formula of Fructose?
A.
C5H10O5
B.
C6H12O6
C.
C6H10O5
D.
C6H10O8
Ans:
C6H12O6
Explanation :
Fructose, or fruit sugar, is a simple ketonic monosaccharide found in many plants, where it is often bonded to glucose to form the disaccharide sucrose. It is a 6-carbon polyhydroxy ketone with chemical formula of C6H12O6. Fructose was discovered by French chemist Augustin-Pierre Dubrunfaut in 1847.
[14] The basic unit of biosystematics is -
A.
Phenotype
B.
Ecotype
C.
Florotype
D.
Genotype
Ans:
Ecotype
Explanation :
Ecotype is the basic unit of Biosystematics. It is adapted to a particular environment but capable of producing fully fertile hybrids with other ecotypes. The term Ecotype was proposed by Turesson. According to him Ecotype is “an ecological unit to cover the product arising as a result of genotypical response of an ecospecies to a particular habitat.”
[15] Which endocrine gland is found in chest cavity?
A.
Pineal gland
B.
Thymus gland
C.
Adrenal gland
D.
Thyroid gland
Ans:
Thymus gland
Explanation :
The endocrine glands are widely distributed throughout the body. The pituitary gland, pineal gland and hypothalamus are located in the skull. The thyroid and parathyroid glands are in the neck, and the thymus gland is in the thoracic (chest) cavity. The thymus gland is only active until puberty. It helps the body protect itself against autoimmunity.
[16] In B.C.G. Vaccine the word 'C' stands for -
A.
Calmette
B.
Cough
C.
Chlorine
D.
Cadmium
Ans:
Calmette
Explanation :
The acronym BCG stands for Bacillus Calmette– Guérin, a vaccine against tuberculosis and for the treatment of some bladder cancers. It is prepared from a strain of the attenuated (virulence-reduced) live bovine tuberculosis bacillus, Mycobacterium bovis. It is on the World Health Organization’s List of Essential Medicines.
[17] The presence of pollutants in the environment is usually expressed in ppm, where ppm stands for:
A.
particles per mole
B.
purity per microgram
C.
pollutant prevent measures
D.
parts per million
Ans:
parts per million
Explanation :
PPM is an abbreviation of Parts Per Million. It is commonly used as a measure of small levels of pollutants in air, water, body fluids, etc. Parts per million is the mass ratio between the pollutant component and the solution.
[18] Which one of the following animals belongs to mollusca?
A.
Haliotis
B.
Hare
C.
Hydra
D.
Hyla
Ans:
Hare
Explanation :
Sea hares are molluscs. They belong to Phylum Mollusca and Class Gastropoda like snails. Like many other sea slugs (Subclass Opistobranchia), sea hares lack external shells as adults. Sea hares belong to Order Anaspidea.
[19] The site where complete digestion of carbohydrates, proteins and fats takes place is called -
A.
Liver
B.
Stomach
C.
Large Intestine
D.
Small Intestine
Ans:
Small Intestine
Explanation :
The small intestine is the site of the complete digestion of carbohydrates, proteins and fats. It receives the secretions of the liver and pancreas for this purpose.
[20] Polio is caused by -
A.
Bacteria
B.
Virus
C.
Fungus
D.
Protozoa
Ans:
Virus
Explanation :
Poliomyelitis, often called polio or infantile paralysis, is an infectious disease caused by the poliovirus.Poliovirus is usually spread from person to person through infected fecal matter entering the mouth. It may also be spread by food or water containing human feces and less commonly from infected saliva.
[21] Phototropic movement is controlled by -
A.
Auxin
B.
Gibberellin
C.
Cytolthiin
D.
Ethylene
Ans:
Auxin
Explanation :
Phototropism is the growth of organisms in response to light. In plants, phototropism is a response to blue wavelengths of light and is caused by a redistribution of auxin from the illuminated side to the darker side of the shoot, resulting in quicker growth on the darker side and bending of the shoot toward the source of light.
[22] Lactogenic hormone is secreted by -
A.
Mammary glands
B.
Placenta
C.
Ovary
D.
Pituitary
Ans:
Pituitary
Explanation :
Lactogenic hormone is gonadotropic hormone which is secreted by the anterior pituitary. In females, it stimulates growth of the mammary glands and lactation after parturition.
[23] The type of fruit obtained from a multicarpillary, apocarpous gynoecium is:
A.
composite
B.
aggregate
C.
simple
D.
multiple
Ans:
aggregate
Explanation :
Aggregate fruits are the group of fruitlets which develop from the multicarpellary, apocarpous ovary. Flowers with apocarpous multiple gynoecium are apt to give rise to a number of fruits as there are a number of free ovaries, each capable of giving rise to one fruit. Berries are good example of such fruits.
[24] The plants, which grow under water stress conditions of deserts are -
A.
Epiphytes
B.
Xerophytes
C.
Heliophytes
D.
Sciophytes
Ans:
Xerophytes
Explanation :
The term xerophyte refers to a plant species that has evolved over time to adapt to dry regions like deserts. Xerophytes have adapted to be able to keep extremely large amounts of water for a long period of time. Without this capability, the plant would die, as the desert region itself does not provide enough water to sustain life.
[25] Which of the following is an example of parasitic alga?
A.
Ulothrix
B.
Cephaleuros
C.
Oedogonium
D.
Sargassum
Ans:
Cephaleuros
Explanation :
Cephaleuros is a genus of parasitic thalloid algae comprising approximately 14 species. Its common name is red rust. The alga is parasitic on tea, coffee, mango and guava causing damage limited to the area of algal growth on leaves.
Explanation :
Fructose, or fruit sugar, is a simple ketonic monosaccharide found in many plants, where it is often bonded to glucose to form the disaccharide sucrose. It is a 6-carbon polyhydroxy ketone with chemical formula of C6H12O6. Fructose was discovered by French chemist Augustin-Pierre Dubrunfaut in 1847.
[14] The basic unit of biosystematics is -
A.
Phenotype
B.
Ecotype
C.
Florotype
D.
Genotype
Ans:
Ecotype
Explanation :
Ecotype is the basic unit of Biosystematics. It is adapted to a particular environment but capable of producing fully fertile hybrids with other ecotypes. The term Ecotype was proposed by Turesson. According to him Ecotype is “an ecological unit to cover the product arising as a result of genotypical response of an ecospecies to a particular habitat.”
[15] Which endocrine gland is found in chest cavity?
A.
Pineal gland
B.
Thymus gland
C.
Adrenal gland
D.
Thyroid gland
Ans:
Thymus gland
Explanation :
The endocrine glands are widely distributed throughout the body. The pituitary gland, pineal gland and hypothalamus are located in the skull. The thyroid and parathyroid glands are in the neck, and the thymus gland is in the thoracic (chest) cavity. The thymus gland is only active until puberty. It helps the body protect itself against autoimmunity.
[16] In B.C.G. Vaccine the word 'C' stands for -
A.
Calmette
B.
Cough
C.
Chlorine
D.
Cadmium
Ans:
Calmette
Explanation :
The acronym BCG stands for Bacillus Calmette– Guérin, a vaccine against tuberculosis and for the treatment of some bladder cancers. It is prepared from a strain of the attenuated (virulence-reduced) live bovine tuberculosis bacillus, Mycobacterium bovis. It is on the World Health Organization’s List of Essential Medicines.
[17] The presence of pollutants in the environment is usually expressed in ppm, where ppm stands for:
A.
particles per mole
B.
purity per microgram
C.
pollutant prevent measures
D.
parts per million
Ans:
parts per million
Explanation :
PPM is an abbreviation of Parts Per Million. It is commonly used as a measure of small levels of pollutants in air, water, body fluids, etc. Parts per million is the mass ratio between the pollutant component and the solution.
[18] Which one of the following animals belongs to mollusca?
A.
Haliotis
B.
Hare
C.
Hydra
D.
Hyla
Ans:
Hare
Explanation :
Sea hares are molluscs. They belong to Phylum Mollusca and Class Gastropoda like snails. Like many other sea slugs (Subclass Opistobranchia), sea hares lack external shells as adults. Sea hares belong to Order Anaspidea.
[19] The site where complete digestion of carbohydrates, proteins and fats takes place is called -
A.
Liver
B.
Stomach
C.
Large Intestine
D.
Small Intestine
Ans:
Small Intestine
Explanation :
The small intestine is the site of the complete digestion of carbohydrates, proteins and fats. It receives the secretions of the liver and pancreas for this purpose.
[20] Polio is caused by -
A.
Bacteria
B.
Virus
C.
Fungus
D.
Protozoa
Ans:
Virus
Explanation :
Poliomyelitis, often called polio or infantile paralysis, is an infectious disease caused by the poliovirus.Poliovirus is usually spread from person to person through infected fecal matter entering the mouth. It may also be spread by food or water containing human feces and less commonly from infected saliva.
[21] Phototropic movement is controlled by -
A.
Auxin
B.
Gibberellin
C.
Cytolthiin
D.
Ethylene
Ans:
Auxin
Explanation :
Phototropism is the growth of organisms in response to light. In plants, phototropism is a response to blue wavelengths of light and is caused by a redistribution of auxin from the illuminated side to the darker side of the shoot, resulting in quicker growth on the darker side and bending of the shoot toward the source of light.
[22] Lactogenic hormone is secreted by -
A.
Mammary glands
B.
Placenta
C.
Ovary
D.
Pituitary
Ans:
Pituitary
Explanation :
Lactogenic hormone is gonadotropic hormone which is secreted by the anterior pituitary. In females, it stimulates growth of the mammary glands and lactation after parturition.
[23] The type of fruit obtained from a multicarpillary, apocarpous gynoecium is:
A.
composite
B.
aggregate
C.
simple
D.
multiple
Ans:
aggregate
Explanation :
Aggregate fruits are the group of fruitlets which develop from the multicarpellary, apocarpous ovary. Flowers with apocarpous multiple gynoecium are apt to give rise to a number of fruits as there are a number of free ovaries, each capable of giving rise to one fruit. Berries are good example of such fruits.
[24] The plants, which grow under water stress conditions of deserts are -
A.
Epiphytes
B.
Xerophytes
C.
Heliophytes
D.
Sciophytes
Ans:
Xerophytes
Explanation :
The term xerophyte refers to a plant species that has evolved over time to adapt to dry regions like deserts. Xerophytes have adapted to be able to keep extremely large amounts of water for a long period of time. Without this capability, the plant would die, as the desert region itself does not provide enough water to sustain life.
[25] Which of the following is an example of parasitic alga?
A.
Ulothrix
B.
Cephaleuros
C.
Oedogonium
D.
Sargassum
Ans:
Cephaleuros
Explanation :
Cephaleuros is a genus of parasitic thalloid algae comprising approximately 14 species. Its common name is red rust. The alga is parasitic on tea, coffee, mango and guava causing damage limited to the area of algal growth on leaves.
Explanation :
The endocrine glands are widely distributed throughout the body. The pituitary gland, pineal gland and hypothalamus are located in the skull. The thyroid and parathyroid glands are in the neck, and the thymus gland is in the thoracic (chest) cavity. The thymus gland is only active until puberty. It helps the body protect itself against autoimmunity.
[16] In B.C.G. Vaccine the word 'C' stands for -
A.
Calmette
B.
Cough
C.
Chlorine
D.
Cadmium
Ans:
Calmette
Explanation :
The acronym BCG stands for Bacillus Calmette– Guérin, a vaccine against tuberculosis and for the treatment of some bladder cancers. It is prepared from a strain of the attenuated (virulence-reduced) live bovine tuberculosis bacillus, Mycobacterium bovis. It is on the World Health Organization’s List of Essential Medicines.
[17] The presence of pollutants in the environment is usually expressed in ppm, where ppm stands for:
A.
particles per mole
B.
purity per microgram
C.
pollutant prevent measures
D.
parts per million
Ans:
parts per million
Explanation :
PPM is an abbreviation of Parts Per Million. It is commonly used as a measure of small levels of pollutants in air, water, body fluids, etc. Parts per million is the mass ratio between the pollutant component and the solution.
[18] Which one of the following animals belongs to mollusca?
A.
Haliotis
B.
Hare
C.
Hydra
D.
Hyla
Ans:
Hare
Explanation :
Sea hares are molluscs. They belong to Phylum Mollusca and Class Gastropoda like snails. Like many other sea slugs (Subclass Opistobranchia), sea hares lack external shells as adults. Sea hares belong to Order Anaspidea.
[19] The site where complete digestion of carbohydrates, proteins and fats takes place is called -
A.
Liver
B.
Stomach
C.
Large Intestine
D.
Small Intestine
Ans:
Small Intestine
Explanation :
The small intestine is the site of the complete digestion of carbohydrates, proteins and fats. It receives the secretions of the liver and pancreas for this purpose.
[20] Polio is caused by -
A.
Bacteria
B.
Virus
C.
Fungus
D.
Protozoa
Ans:
Virus
Explanation :
Poliomyelitis, often called polio or infantile paralysis, is an infectious disease caused by the poliovirus.Poliovirus is usually spread from person to person through infected fecal matter entering the mouth. It may also be spread by food or water containing human feces and less commonly from infected saliva.
[21] Phototropic movement is controlled by -
A.
Auxin
B.
Gibberellin
C.
Cytolthiin
D.
Ethylene
Ans:
Auxin
Explanation :
Phototropism is the growth of organisms in response to light. In plants, phototropism is a response to blue wavelengths of light and is caused by a redistribution of auxin from the illuminated side to the darker side of the shoot, resulting in quicker growth on the darker side and bending of the shoot toward the source of light.
[22] Lactogenic hormone is secreted by -
A.
Mammary glands
B.
Placenta
C.
Ovary
D.
Pituitary
Ans:
Pituitary
Explanation :
Lactogenic hormone is gonadotropic hormone which is secreted by the anterior pituitary. In females, it stimulates growth of the mammary glands and lactation after parturition.
[23] The type of fruit obtained from a multicarpillary, apocarpous gynoecium is:
A.
composite
B.
aggregate
C.
simple
D.
multiple
Ans:
aggregate
Explanation :
Aggregate fruits are the group of fruitlets which develop from the multicarpellary, apocarpous ovary. Flowers with apocarpous multiple gynoecium are apt to give rise to a number of fruits as there are a number of free ovaries, each capable of giving rise to one fruit. Berries are good example of such fruits.
[24] The plants, which grow under water stress conditions of deserts are -
A.
Epiphytes
B.
Xerophytes
C.
Heliophytes
D.
Sciophytes
Ans:
Xerophytes
Explanation :
The term xerophyte refers to a plant species that has evolved over time to adapt to dry regions like deserts. Xerophytes have adapted to be able to keep extremely large amounts of water for a long period of time. Without this capability, the plant would die, as the desert region itself does not provide enough water to sustain life.
[25] Which of the following is an example of parasitic alga?
A.
Ulothrix
B.
Cephaleuros
C.
Oedogonium
D.
Sargassum
Ans:
Cephaleuros
Explanation :
Cephaleuros is a genus of parasitic thalloid algae comprising approximately 14 species. Its common name is red rust. The alga is parasitic on tea, coffee, mango and guava causing damage limited to the area of algal growth on leaves.
Explanation :
PPM is an abbreviation of Parts Per Million. It is commonly used as a measure of small levels of pollutants in air, water, body fluids, etc. Parts per million is the mass ratio between the pollutant component and the solution.
[18] Which one of the following animals belongs to mollusca?
A.
Haliotis
B.
Hare
C.
Hydra
D.
Hyla
Ans:
Hare
Explanation :
Sea hares are molluscs. They belong to Phylum Mollusca and Class Gastropoda like snails. Like many other sea slugs (Subclass Opistobranchia), sea hares lack external shells as adults. Sea hares belong to Order Anaspidea.
[19] The site where complete digestion of carbohydrates, proteins and fats takes place is called -
A.
Liver
B.
Stomach
C.
Large Intestine
D.
Small Intestine
Ans:
Small Intestine
Explanation :
The small intestine is the site of the complete digestion of carbohydrates, proteins and fats. It receives the secretions of the liver and pancreas for this purpose.
[20] Polio is caused by -
A.
Bacteria
B.
Virus
C.
Fungus
D.
Protozoa
Ans:
Virus
Explanation :
Poliomyelitis, often called polio or infantile paralysis, is an infectious disease caused by the poliovirus.Poliovirus is usually spread from person to person through infected fecal matter entering the mouth. It may also be spread by food or water containing human feces and less commonly from infected saliva.
[21] Phototropic movement is controlled by -
A.
Auxin
B.
Gibberellin
C.
Cytolthiin
D.
Ethylene
Ans:
Auxin
Explanation :
Phototropism is the growth of organisms in response to light. In plants, phototropism is a response to blue wavelengths of light and is caused by a redistribution of auxin from the illuminated side to the darker side of the shoot, resulting in quicker growth on the darker side and bending of the shoot toward the source of light.
[22] Lactogenic hormone is secreted by -
A.
Mammary glands
B.
Placenta
C.
Ovary
D.
Pituitary
Ans:
Pituitary
Explanation :
Lactogenic hormone is gonadotropic hormone which is secreted by the anterior pituitary. In females, it stimulates growth of the mammary glands and lactation after parturition.
[23] The type of fruit obtained from a multicarpillary, apocarpous gynoecium is:
A.
composite
B.
aggregate
C.
simple
D.
multiple
Ans:
aggregate
Explanation :
Aggregate fruits are the group of fruitlets which develop from the multicarpellary, apocarpous ovary. Flowers with apocarpous multiple gynoecium are apt to give rise to a number of fruits as there are a number of free ovaries, each capable of giving rise to one fruit. Berries are good example of such fruits.
[24] The plants, which grow under water stress conditions of deserts are -
A.
Epiphytes
B.
Xerophytes
C.
Heliophytes
D.
Sciophytes
Ans:
Xerophytes
Explanation :
The term xerophyte refers to a plant species that has evolved over time to adapt to dry regions like deserts. Xerophytes have adapted to be able to keep extremely large amounts of water for a long period of time. Without this capability, the plant would die, as the desert region itself does not provide enough water to sustain life.
[25] Which of the following is an example of parasitic alga?
A.
Ulothrix
B.
Cephaleuros
C.
Oedogonium
D.
Sargassum
Ans:
Cephaleuros
Explanation :
Cephaleuros is a genus of parasitic thalloid algae comprising approximately 14 species. Its common name is red rust. The alga is parasitic on tea, coffee, mango and guava causing damage limited to the area of algal growth on leaves.
Explanation :
The small intestine is the site of the complete digestion of carbohydrates, proteins and fats. It receives the secretions of the liver and pancreas for this purpose.
[20] Polio is caused by -
A.
Bacteria
B.
Virus
C.
Fungus
D.
Protozoa
Ans:
Virus
Explanation :
Poliomyelitis, often called polio or infantile paralysis, is an infectious disease caused by the poliovirus.Poliovirus is usually spread from person to person through infected fecal matter entering the mouth. It may also be spread by food or water containing human feces and less commonly from infected saliva.
[21] Phototropic movement is controlled by -
A.
Auxin
B.
Gibberellin
C.
Cytolthiin
D.
Ethylene
Ans:
Auxin
Explanation :
Phototropism is the growth of organisms in response to light. In plants, phototropism is a response to blue wavelengths of light and is caused by a redistribution of auxin from the illuminated side to the darker side of the shoot, resulting in quicker growth on the darker side and bending of the shoot toward the source of light.
[22] Lactogenic hormone is secreted by -
A.
Mammary glands
B.
Placenta
C.
Ovary
D.
Pituitary
Ans:
Pituitary
Explanation :
Lactogenic hormone is gonadotropic hormone which is secreted by the anterior pituitary. In females, it stimulates growth of the mammary glands and lactation after parturition.
[23] The type of fruit obtained from a multicarpillary, apocarpous gynoecium is:
A.
composite
B.
aggregate
C.
simple
D.
multiple
Ans:
aggregate
Explanation :
Aggregate fruits are the group of fruitlets which develop from the multicarpellary, apocarpous ovary. Flowers with apocarpous multiple gynoecium are apt to give rise to a number of fruits as there are a number of free ovaries, each capable of giving rise to one fruit. Berries are good example of such fruits.
[24] The plants, which grow under water stress conditions of deserts are -
A.
Epiphytes
B.
Xerophytes
C.
Heliophytes
D.
Sciophytes
Ans:
Xerophytes
Explanation :
The term xerophyte refers to a plant species that has evolved over time to adapt to dry regions like deserts. Xerophytes have adapted to be able to keep extremely large amounts of water for a long period of time. Without this capability, the plant would die, as the desert region itself does not provide enough water to sustain life.
[25] Which of the following is an example of parasitic alga?
A.
Ulothrix
B.
Cephaleuros
C.
Oedogonium
D.
Sargassum
Ans:
Cephaleuros
Explanation :
Cephaleuros is a genus of parasitic thalloid algae comprising approximately 14 species. Its common name is red rust. The alga is parasitic on tea, coffee, mango and guava causing damage limited to the area of algal growth on leaves.
Explanation :
Phototropism is the growth of organisms in response to light. In plants, phototropism is a response to blue wavelengths of light and is caused by a redistribution of auxin from the illuminated side to the darker side of the shoot, resulting in quicker growth on the darker side and bending of the shoot toward the source of light.
[22] Lactogenic hormone is secreted by -
A.
Mammary glands
B.
Placenta
C.
Ovary
D.
Pituitary
Ans:
Pituitary
Explanation :
Lactogenic hormone is gonadotropic hormone which is secreted by the anterior pituitary. In females, it stimulates growth of the mammary glands and lactation after parturition.
[23] The type of fruit obtained from a multicarpillary, apocarpous gynoecium is:
A.
composite
B.
aggregate
C.
simple
D.
multiple
Ans:
aggregate
Explanation :
Aggregate fruits are the group of fruitlets which develop from the multicarpellary, apocarpous ovary. Flowers with apocarpous multiple gynoecium are apt to give rise to a number of fruits as there are a number of free ovaries, each capable of giving rise to one fruit. Berries are good example of such fruits.
[24] The plants, which grow under water stress conditions of deserts are -
A.
Epiphytes
B.
Xerophytes
C.
Heliophytes
D.
Sciophytes
Ans:
Xerophytes
Explanation :
The term xerophyte refers to a plant species that has evolved over time to adapt to dry regions like deserts. Xerophytes have adapted to be able to keep extremely large amounts of water for a long period of time. Without this capability, the plant would die, as the desert region itself does not provide enough water to sustain life.
[25] Which of the following is an example of parasitic alga?
A.
Ulothrix
B.
Cephaleuros
C.
Oedogonium
D.
Sargassum
Ans:
Cephaleuros
Explanation :
Cephaleuros is a genus of parasitic thalloid algae comprising approximately 14 species. Its common name is red rust. The alga is parasitic on tea, coffee, mango and guava causing damage limited to the area of algal growth on leaves.
Explanation :
Aggregate fruits are the group of fruitlets which develop from the multicarpellary, apocarpous ovary. Flowers with apocarpous multiple gynoecium are apt to give rise to a number of fruits as there are a number of free ovaries, each capable of giving rise to one fruit. Berries are good example of such fruits.
[24] The plants, which grow under water stress conditions of deserts are -
A.
Epiphytes
B.
Xerophytes
C.
Heliophytes
D.
Sciophytes
Ans:
Xerophytes
Explanation :
The term xerophyte refers to a plant species that has evolved over time to adapt to dry regions like deserts. Xerophytes have adapted to be able to keep extremely large amounts of water for a long period of time. Without this capability, the plant would die, as the desert region itself does not provide enough water to sustain life.
[25] Which of the following is an example of parasitic alga?
A.
Ulothrix
B.
Cephaleuros
C.
Oedogonium
D.
Sargassum
Ans:
Cephaleuros
Explanation :
Cephaleuros is a genus of parasitic thalloid algae comprising approximately 14 species. Its common name is red rust. The alga is parasitic on tea, coffee, mango and guava causing damage limited to the area of algal growth on leaves.
Explanation :
Cephaleuros is a genus of parasitic thalloid algae comprising approximately 14 species. Its common name is red rust. The alga is parasitic on tea, coffee, mango and guava causing damage limited to the area of algal growth on leaves.