[1] Which of the following has no skeleton at all?
A.
Starfish
B.
Sponge
C.
Jelly fish
D.
Silver fish
Ans:
Silver fish
Explanation :
Silverfish are always wingless and are silvery to brown in color because their bodies are covered with fine scales. They are generally soft bodied.
[2] Fluid part of blood devoid of corpuscles is called -
A.
Tissue fluid
B.
Plasma
C.
Serum
D.
Lymph
Ans:
Serum
Explanation :
In blood, the serum is the component that is neither a blood cell (serum does not contain white or red blood cells) nor a clotting factor; it is the blood plasma with the fibrinogens removed. Serum includes all proteins not used in blood clotting (coagulation) and all the electrolytes, antibodies, antigens, hormones, and any exogenous substances (e.g., drugs and microorganisms). Serum is an essential factor for the self-renewal of embryonic stem cells in combination with the cytokine leukemia inhibitory factor.
[3] Heart murmur indicates a -
A.
defective valve
B.
poor oxygenation
C.
dislocation of the heart
D.
improper development of muscles
Ans:
defective valve
Explanation :
Murmurs are pathologic heart sounds that are produced as a result of turbulent blood flow that is sufficient to produce audible noise. A functional murmur or "physiologic murmur" is a heart murmur that is primarily due to physiologic conditions outside the heart, as opposed to structural defects in the heart itself. Murmurs may also be the result of various problems, such as narrowing or leaking of valves, or the presence of abnormal passages through which blood flows in or near the heart. Such murmurs are known as pathologic murmurs.
[4] Which of these components of the blood is responsible for clotting -
A.
R.B.C.
B.
Lymphocytes
C.
Monocytes
D.
Platelets
Ans:
Platelets
Explanation :
Coagulation is the process by which blood forms clots. It is an important part of hemostasis, the cessation of blood loss from a damaged vessel, wherein a damaged blood vessel wall is covered by a platelet and fibrin-containing clot to stop bleeding and begin repair of the damaged vessel. Disorders of coagulation can lead to an increased risk of bleeding (hemorrhage) or obstructive clotting (thrombosis). Coagulation begins almost instantly after an injury to the blood vessel has damaged the endothelium lining the vessel.
[5] A person will have brown eyes, blue eyes or black eyes depending on the particular pigment present in the :
A.
Pupil
B.
Cornea
C.
Iris
D.
Choroid
Ans:
Iris
Explanation :
Eye color is a polygenic phenotypic character determined by 2 distinct factors: the pigmentation of the eye's iris and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris. In humans, the pigmentation of the iris varies from light brown to black, depending on the concentration of melanin in the iris pigment epithelium (located on the back of the iris), the melanin content within the iris stroma (located at the front of the iris), and the cellular density of the stroma.
[6] Which of the following crops are used for producing Bio fuels?
A.
Sugarcane
B.
Corn
C.
Jatropha
D.
All options are correct
Ans:
All options are correct
Explanation :
A biofuel is a fuel that is produced through contemporary biological processes, such as agriculture and anaerobic digestion, rather than a fuel produced by geological processes such as those involved in the formation of fossil fuels, such as coal and petroleum, from prehistoric biological matter.
[7] Which one of the following has most corrosive effect?
A.
Air
B.
Carbon dioxide
C.
Plants
D.
Water
Ans:
Water
Explanation :
Common corrosives are either strong acids, strong bases, or concentrated solutions of certain weak acids or weak bases.
[8] A plant with compound leaves is -
A.
Papaya
B.
Coconut
C.
Peepal
D.
Hibiscus
Ans:
Coconut
Explanation :
A compound leaf has a fully subdivided blade, each leaflet of the blade separated along a main or secondary vein. Because each leaflet can appear to be a simple leaf, it is important to recognize where the petiole occurs to identify a compound leaf. Compound leaves are a characteristic of some families of higher plants, such as the Fabaceae. The coconut palm produces a crown of pinnately compound yellow-green leaves called fronds. Each frond reaches 15 to 17 feet in length.
[9] The scientist who explained about blood circulation for the first time was -
A.
Antonyvan Leewen Hock
B.
William Harvey
C.
Gregor Mendel
D.
Ronald Ross
Ans:
William Harvey
Explanation :
William Harvey was an English physician, who described completely and in detail the systemic circulation and properties of blood being pumped to the body by the heart, though earlier writers had provided precursors of the theory. After his death the William Harvey Hospital was constructed in the town of Ashford, several miles from his birthplace of Folkestone. He is not well recognized for his accomplishments in today's society.
[10] What are the basic units from which human spare parts can be created?
A.
Nerve cells
B.
Stern cells
C.
Heart cells
D.
Kidney cells
Ans:
Stern cells
Explanation :
Stem cells are biological cells found in all multicellular organisms, that can divide (through mitosis) and differentiate into diverse specialized cell types and can self-renew to produce more stem cells. Stem cells can now be artificially grown and transformed (differentiated) into specialized cell types with characteristics consistent with cells of various tissues such as muscles or nerves through cell culture.
[11] The pollen grains of flowers pollinated by insects are :
A.
smooth and dry
B.
rough and sticky
C.
rough and dry
D.
large and, showy
Ans:
rough and sticky
Explanation :
Pollen grains are large sticky and heavy, usually with rough surfaces so that they can readily cling onto the insects bodies. They are sticky so that pollen grains settling on them are not easily displaced.
[12] Which of the following structures present in mammalian skin directly helps in keeping the body warm?
A.
Pigmented cells
B.
Sweat glands
C.
Lymph vessels
D.
Blood capillaries
Ans:
Lymph vessels
Explanation :
The lymphatic system consists of a network of specialized lymphatic vessels and various tissues and organs throughout the body that contain lymphocytes (White Blood Cells) and other cells that help the body fight infection and disease. The lymphatic vessels are similar to veins but have thinner walls. Some of these vessels are very close to the skin surface and can be found near veins; others are just under the skin and in the deeper fatty tissues near the muscles and can be found near arteries.
[13] Which from the following diseases usually spreads through milk?
A.
Tuberculosis
B.
Jaundice
C.
Diphtheria
D.
Cholera
Ans:
Tuberculosis
Explanation :
There are two forms of tuberculosis that cause significant disease in mammals. Human tuberculosis, a sometimes acute, but much more commonly, a chronic lung infection is caused by the bacterium, Mycobacterium tuberculosis. Bovine tuberculosis is a very similar disease that infects cattle, as well as deer, goats, elk and many other animals. This infection is caused by a related bacterium, Mycobacterium bovis.
[14] Which of the following crops would be preferred for sowing in order to enrich the soil with nitrogen?
A.
Wheat
B.
Mustard
C.
Sunflower
D.
Gram
Ans:
Gram
Explanation :
Gram flour, also known as garbanzo bean flour, chickpea flour, or besan, is pulse flour made from ground chickpeas.
[15] Which among the following has segmented body?
A.
Phylum Mollusca
B.
Phylum Arthopoda
C.
Phylum Annelida
D.
Phylum Coelenterata
Ans:
Phylum Annelida
Explanation :
The Annelida, also known as the ringed worms or segmented worms, are a large phylum, with over 17,000 extant species including ragworms, earthworms, and leeches.
[16] How many layers does Human Skin have?
A.
5
B.
7
C.
11
D.
3
Ans:
3
Explanation :
The skin is made up of three distinct layers : the outermost epidermis, the dermis in the middle and the hypodermis. The hypodermis is the deepest layer (think hypodermic needle for injections) and is also known as the subcutaneous fat layer.
[17] It causes clotting of blood -
A.
Thrombin
B.
Haemoglobin
C.
Pectin
D.
All of the above
Ans:
Thrombin
Explanation :
There are two major facets of the clotting mechanism - the platelets, and the thrombin system. The thrombin system consists of several blood proteins that, when bleeding occurs, become activated. The activated clotting proteins engage in a cascade of chemical reactions that finally produce a substance called fibrin. Red blood cells become caught up in the web, and a "red clot" forms.
[18] The largest flightless bird which can run at a great speed is -
A.
Penguin
B.
Kiwi
C.
Ostrich
D.
Emu
Ans:
Ostrich
Explanation :
The Ostrich is the largest living species of bird. They usually weigh from 63 to 145 kilograms. Although it cannot fly, the ostrich is also the fastest-running bird today; it can run up to about 70 kilometres in an hour.
[19] Ginger is a modified -
A.
roof
B.
leaf
C.
tendril
D.
stem
Ans:
stem
Explanation :
Technically, ginger is a plant with a specialized stem called a rhizome which is a horizontal underground stem that often sends out roots and shoots from its nodes. These roots can develop into stern tubers for storage or root tubers for asexual reproduction.
[20] Honey contains mainly -
A.
Proteins
B.
Carbohydrates
C.
Fat
D.
Vitamin
Ans:
Carbohydrates
Explanation :
Honey is a mixture of sugars and other compounds. With respect to carbohydrates, honey is mainly fructose (about 38.5%) and glucose (about 31.0%), making it similar to the synthetically produced inverted sugar syrup, which is approximately 48% fructose, 47% glucose, and 5% sucrose. Honey's remaining carbohydrates include maltose, sucrose, and other complex carbohydrate.
[21] In a plant, the xylem tissue conducts -
A.
water
B.
food
C.
water and food
D.
None of these
Ans:
water
Explanation :
Xylem is of a plant's vascular system that conveys water and dissolved minerals from the roots to the rest of the plant and furnishes mechanical support. It constitutes the major part of a mature woody stem or root and the wood of a tree, and consists of specialized water-conducting tissues made up mostly of several types of narrow, elongate, hollow cells.
[22] The gas released during photosynthesis :
A.
Carbon dioxide
B.
Oxygen
C.
Carbon monoxide
D.
Sulphur dioxide
Ans:
Oxygen
Explanation :
In plants, algae, and cyanobacteria, photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product. Photosynthesis is vital for all aerobic life on Earth. In oxygenic photosynthesis water is the electron donor and, since its hydrolysis releases oxygen, the equation for this process is: Carbon dioxide + Water + Light energy --> Carbohydrate + Oxygen + Water
[23] The transfer of minerals from top soil to subsoil through soil-water is called?
A.
Percolation
B.
Conduction
C.
Leaching
D.
Transpiration
Ans:
Leaching
Explanation :
Leaching refers to the loss of water-soluble plant nutrients from the soil, due to rain and irrigation.
[24] When you eat Carrot, you are eating:
A.
Root
B.
Leaf
C.
Stem
D.
Fruit
Ans:
Root
Explanation :
When we eat carrot, we are eating root part of a plant.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
Anther is the apical portion of a stamen, which produces the microspores or pollen grains. An anther normally comprises four pollen sacs arranged in two groups or lobes joined by the connective tissue to the filament
Explanation :
Silverfish are always wingless and are silvery to brown in color because their bodies are covered with fine scales. They are generally soft bodied.
[2] Fluid part of blood devoid of corpuscles is called -
A.
Tissue fluid
B.
Plasma
C.
Serum
D.
Lymph
Ans:
Serum
Explanation :
In blood, the serum is the component that is neither a blood cell (serum does not contain white or red blood cells) nor a clotting factor; it is the blood plasma with the fibrinogens removed. Serum includes all proteins not used in blood clotting (coagulation) and all the electrolytes, antibodies, antigens, hormones, and any exogenous substances (e.g., drugs and microorganisms). Serum is an essential factor for the self-renewal of embryonic stem cells in combination with the cytokine leukemia inhibitory factor.
[3] Heart murmur indicates a -
A.
defective valve
B.
poor oxygenation
C.
dislocation of the heart
D.
improper development of muscles
Ans:
defective valve
Explanation :
Murmurs are pathologic heart sounds that are produced as a result of turbulent blood flow that is sufficient to produce audible noise. A functional murmur or "physiologic murmur" is a heart murmur that is primarily due to physiologic conditions outside the heart, as opposed to structural defects in the heart itself. Murmurs may also be the result of various problems, such as narrowing or leaking of valves, or the presence of abnormal passages through which blood flows in or near the heart. Such murmurs are known as pathologic murmurs.
[4] Which of these components of the blood is responsible for clotting -
A.
R.B.C.
B.
Lymphocytes
C.
Monocytes
D.
Platelets
Ans:
Platelets
Explanation :
Coagulation is the process by which blood forms clots. It is an important part of hemostasis, the cessation of blood loss from a damaged vessel, wherein a damaged blood vessel wall is covered by a platelet and fibrin-containing clot to stop bleeding and begin repair of the damaged vessel. Disorders of coagulation can lead to an increased risk of bleeding (hemorrhage) or obstructive clotting (thrombosis). Coagulation begins almost instantly after an injury to the blood vessel has damaged the endothelium lining the vessel.
[5] A person will have brown eyes, blue eyes or black eyes depending on the particular pigment present in the :
A.
Pupil
B.
Cornea
C.
Iris
D.
Choroid
Ans:
Iris
Explanation :
Eye color is a polygenic phenotypic character determined by 2 distinct factors: the pigmentation of the eye's iris and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris. In humans, the pigmentation of the iris varies from light brown to black, depending on the concentration of melanin in the iris pigment epithelium (located on the back of the iris), the melanin content within the iris stroma (located at the front of the iris), and the cellular density of the stroma.
[6] Which of the following crops are used for producing Bio fuels?
A.
Sugarcane
B.
Corn
C.
Jatropha
D.
All options are correct
Ans:
All options are correct
Explanation :
A biofuel is a fuel that is produced through contemporary biological processes, such as agriculture and anaerobic digestion, rather than a fuel produced by geological processes such as those involved in the formation of fossil fuels, such as coal and petroleum, from prehistoric biological matter.
[7] Which one of the following has most corrosive effect?
A.
Air
B.
Carbon dioxide
C.
Plants
D.
Water
Ans:
Water
Explanation :
Common corrosives are either strong acids, strong bases, or concentrated solutions of certain weak acids or weak bases.
[8] A plant with compound leaves is -
A.
Papaya
B.
Coconut
C.
Peepal
D.
Hibiscus
Ans:
Coconut
Explanation :
A compound leaf has a fully subdivided blade, each leaflet of the blade separated along a main or secondary vein. Because each leaflet can appear to be a simple leaf, it is important to recognize where the petiole occurs to identify a compound leaf. Compound leaves are a characteristic of some families of higher plants, such as the Fabaceae. The coconut palm produces a crown of pinnately compound yellow-green leaves called fronds. Each frond reaches 15 to 17 feet in length.
[9] The scientist who explained about blood circulation for the first time was -
A.
Antonyvan Leewen Hock
B.
William Harvey
C.
Gregor Mendel
D.
Ronald Ross
Ans:
William Harvey
Explanation :
William Harvey was an English physician, who described completely and in detail the systemic circulation and properties of blood being pumped to the body by the heart, though earlier writers had provided precursors of the theory. After his death the William Harvey Hospital was constructed in the town of Ashford, several miles from his birthplace of Folkestone. He is not well recognized for his accomplishments in today's society.
[10] What are the basic units from which human spare parts can be created?
A.
Nerve cells
B.
Stern cells
C.
Heart cells
D.
Kidney cells
Ans:
Stern cells
Explanation :
Stem cells are biological cells found in all multicellular organisms, that can divide (through mitosis) and differentiate into diverse specialized cell types and can self-renew to produce more stem cells. Stem cells can now be artificially grown and transformed (differentiated) into specialized cell types with characteristics consistent with cells of various tissues such as muscles or nerves through cell culture.
[11] The pollen grains of flowers pollinated by insects are :
A.
smooth and dry
B.
rough and sticky
C.
rough and dry
D.
large and, showy
Ans:
rough and sticky
Explanation :
Pollen grains are large sticky and heavy, usually with rough surfaces so that they can readily cling onto the insects bodies. They are sticky so that pollen grains settling on them are not easily displaced.
[12] Which of the following structures present in mammalian skin directly helps in keeping the body warm?
A.
Pigmented cells
B.
Sweat glands
C.
Lymph vessels
D.
Blood capillaries
Ans:
Lymph vessels
Explanation :
The lymphatic system consists of a network of specialized lymphatic vessels and various tissues and organs throughout the body that contain lymphocytes (White Blood Cells) and other cells that help the body fight infection and disease. The lymphatic vessels are similar to veins but have thinner walls. Some of these vessels are very close to the skin surface and can be found near veins; others are just under the skin and in the deeper fatty tissues near the muscles and can be found near arteries.
[13] Which from the following diseases usually spreads through milk?
A.
Tuberculosis
B.
Jaundice
C.
Diphtheria
D.
Cholera
Ans:
Tuberculosis
Explanation :
There are two forms of tuberculosis that cause significant disease in mammals. Human tuberculosis, a sometimes acute, but much more commonly, a chronic lung infection is caused by the bacterium, Mycobacterium tuberculosis. Bovine tuberculosis is a very similar disease that infects cattle, as well as deer, goats, elk and many other animals. This infection is caused by a related bacterium, Mycobacterium bovis.
[14] Which of the following crops would be preferred for sowing in order to enrich the soil with nitrogen?
A.
Wheat
B.
Mustard
C.
Sunflower
D.
Gram
Ans:
Gram
Explanation :
Gram flour, also known as garbanzo bean flour, chickpea flour, or besan, is pulse flour made from ground chickpeas.
[15] Which among the following has segmented body?
A.
Phylum Mollusca
B.
Phylum Arthopoda
C.
Phylum Annelida
D.
Phylum Coelenterata
Ans:
Phylum Annelida
Explanation :
The Annelida, also known as the ringed worms or segmented worms, are a large phylum, with over 17,000 extant species including ragworms, earthworms, and leeches.
[16] How many layers does Human Skin have?
A.
5
B.
7
C.
11
D.
3
Ans:
3
Explanation :
The skin is made up of three distinct layers : the outermost epidermis, the dermis in the middle and the hypodermis. The hypodermis is the deepest layer (think hypodermic needle for injections) and is also known as the subcutaneous fat layer.
[17] It causes clotting of blood -
A.
Thrombin
B.
Haemoglobin
C.
Pectin
D.
All of the above
Ans:
Thrombin
Explanation :
There are two major facets of the clotting mechanism - the platelets, and the thrombin system. The thrombin system consists of several blood proteins that, when bleeding occurs, become activated. The activated clotting proteins engage in a cascade of chemical reactions that finally produce a substance called fibrin. Red blood cells become caught up in the web, and a "red clot" forms.
[18] The largest flightless bird which can run at a great speed is -
A.
Penguin
B.
Kiwi
C.
Ostrich
D.
Emu
Ans:
Ostrich
Explanation :
The Ostrich is the largest living species of bird. They usually weigh from 63 to 145 kilograms. Although it cannot fly, the ostrich is also the fastest-running bird today; it can run up to about 70 kilometres in an hour.
[19] Ginger is a modified -
A.
roof
B.
leaf
C.
tendril
D.
stem
Ans:
stem
Explanation :
Technically, ginger is a plant with a specialized stem called a rhizome which is a horizontal underground stem that often sends out roots and shoots from its nodes. These roots can develop into stern tubers for storage or root tubers for asexual reproduction.
[20] Honey contains mainly -
A.
Proteins
B.
Carbohydrates
C.
Fat
D.
Vitamin
Ans:
Carbohydrates
Explanation :
Honey is a mixture of sugars and other compounds. With respect to carbohydrates, honey is mainly fructose (about 38.5%) and glucose (about 31.0%), making it similar to the synthetically produced inverted sugar syrup, which is approximately 48% fructose, 47% glucose, and 5% sucrose. Honey's remaining carbohydrates include maltose, sucrose, and other complex carbohydrate.
[21] In a plant, the xylem tissue conducts -
A.
water
B.
food
C.
water and food
D.
None of these
Ans:
water
Explanation :
Xylem is of a plant's vascular system that conveys water and dissolved minerals from the roots to the rest of the plant and furnishes mechanical support. It constitutes the major part of a mature woody stem or root and the wood of a tree, and consists of specialized water-conducting tissues made up mostly of several types of narrow, elongate, hollow cells.
[22] The gas released during photosynthesis :
A.
Carbon dioxide
B.
Oxygen
C.
Carbon monoxide
D.
Sulphur dioxide
Ans:
Oxygen
Explanation :
In plants, algae, and cyanobacteria, photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product. Photosynthesis is vital for all aerobic life on Earth. In oxygenic photosynthesis water is the electron donor and, since its hydrolysis releases oxygen, the equation for this process is: Carbon dioxide + Water + Light energy --> Carbohydrate + Oxygen + Water
[23] The transfer of minerals from top soil to subsoil through soil-water is called?
A.
Percolation
B.
Conduction
C.
Leaching
D.
Transpiration
Ans:
Leaching
Explanation :
Leaching refers to the loss of water-soluble plant nutrients from the soil, due to rain and irrigation.
[24] When you eat Carrot, you are eating:
A.
Root
B.
Leaf
C.
Stem
D.
Fruit
Ans:
Root
Explanation :
When we eat carrot, we are eating root part of a plant.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
Anther is the apical portion of a stamen, which produces the microspores or pollen grains. An anther normally comprises four pollen sacs arranged in two groups or lobes joined by the connective tissue to the filament
Explanation :
Murmurs are pathologic heart sounds that are produced as a result of turbulent blood flow that is sufficient to produce audible noise. A functional murmur or "physiologic murmur" is a heart murmur that is primarily due to physiologic conditions outside the heart, as opposed to structural defects in the heart itself. Murmurs may also be the result of various problems, such as narrowing or leaking of valves, or the presence of abnormal passages through which blood flows in or near the heart. Such murmurs are known as pathologic murmurs.
[4] Which of these components of the blood is responsible for clotting -
A.
R.B.C.
B.
Lymphocytes
C.
Monocytes
D.
Platelets
Ans:
Platelets
Explanation :
Coagulation is the process by which blood forms clots. It is an important part of hemostasis, the cessation of blood loss from a damaged vessel, wherein a damaged blood vessel wall is covered by a platelet and fibrin-containing clot to stop bleeding and begin repair of the damaged vessel. Disorders of coagulation can lead to an increased risk of bleeding (hemorrhage) or obstructive clotting (thrombosis). Coagulation begins almost instantly after an injury to the blood vessel has damaged the endothelium lining the vessel.
[5] A person will have brown eyes, blue eyes or black eyes depending on the particular pigment present in the :
A.
Pupil
B.
Cornea
C.
Iris
D.
Choroid
Ans:
Iris
Explanation :
Eye color is a polygenic phenotypic character determined by 2 distinct factors: the pigmentation of the eye's iris and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris. In humans, the pigmentation of the iris varies from light brown to black, depending on the concentration of melanin in the iris pigment epithelium (located on the back of the iris), the melanin content within the iris stroma (located at the front of the iris), and the cellular density of the stroma.
[6] Which of the following crops are used for producing Bio fuels?
A.
Sugarcane
B.
Corn
C.
Jatropha
D.
All options are correct
Ans:
All options are correct
Explanation :
A biofuel is a fuel that is produced through contemporary biological processes, such as agriculture and anaerobic digestion, rather than a fuel produced by geological processes such as those involved in the formation of fossil fuels, such as coal and petroleum, from prehistoric biological matter.
[7] Which one of the following has most corrosive effect?
A.
Air
B.
Carbon dioxide
C.
Plants
D.
Water
Ans:
Water
Explanation :
Common corrosives are either strong acids, strong bases, or concentrated solutions of certain weak acids or weak bases.
[8] A plant with compound leaves is -
A.
Papaya
B.
Coconut
C.
Peepal
D.
Hibiscus
Ans:
Coconut
Explanation :
A compound leaf has a fully subdivided blade, each leaflet of the blade separated along a main or secondary vein. Because each leaflet can appear to be a simple leaf, it is important to recognize where the petiole occurs to identify a compound leaf. Compound leaves are a characteristic of some families of higher plants, such as the Fabaceae. The coconut palm produces a crown of pinnately compound yellow-green leaves called fronds. Each frond reaches 15 to 17 feet in length.
[9] The scientist who explained about blood circulation for the first time was -
A.
Antonyvan Leewen Hock
B.
William Harvey
C.
Gregor Mendel
D.
Ronald Ross
Ans:
William Harvey
Explanation :
William Harvey was an English physician, who described completely and in detail the systemic circulation and properties of blood being pumped to the body by the heart, though earlier writers had provided precursors of the theory. After his death the William Harvey Hospital was constructed in the town of Ashford, several miles from his birthplace of Folkestone. He is not well recognized for his accomplishments in today's society.
[10] What are the basic units from which human spare parts can be created?
A.
Nerve cells
B.
Stern cells
C.
Heart cells
D.
Kidney cells
Ans:
Stern cells
Explanation :
Stem cells are biological cells found in all multicellular organisms, that can divide (through mitosis) and differentiate into diverse specialized cell types and can self-renew to produce more stem cells. Stem cells can now be artificially grown and transformed (differentiated) into specialized cell types with characteristics consistent with cells of various tissues such as muscles or nerves through cell culture.
[11] The pollen grains of flowers pollinated by insects are :
A.
smooth and dry
B.
rough and sticky
C.
rough and dry
D.
large and, showy
Ans:
rough and sticky
Explanation :
Pollen grains are large sticky and heavy, usually with rough surfaces so that they can readily cling onto the insects bodies. They are sticky so that pollen grains settling on them are not easily displaced.
[12] Which of the following structures present in mammalian skin directly helps in keeping the body warm?
A.
Pigmented cells
B.
Sweat glands
C.
Lymph vessels
D.
Blood capillaries
Ans:
Lymph vessels
Explanation :
The lymphatic system consists of a network of specialized lymphatic vessels and various tissues and organs throughout the body that contain lymphocytes (White Blood Cells) and other cells that help the body fight infection and disease. The lymphatic vessels are similar to veins but have thinner walls. Some of these vessels are very close to the skin surface and can be found near veins; others are just under the skin and in the deeper fatty tissues near the muscles and can be found near arteries.
[13] Which from the following diseases usually spreads through milk?
A.
Tuberculosis
B.
Jaundice
C.
Diphtheria
D.
Cholera
Ans:
Tuberculosis
Explanation :
There are two forms of tuberculosis that cause significant disease in mammals. Human tuberculosis, a sometimes acute, but much more commonly, a chronic lung infection is caused by the bacterium, Mycobacterium tuberculosis. Bovine tuberculosis is a very similar disease that infects cattle, as well as deer, goats, elk and many other animals. This infection is caused by a related bacterium, Mycobacterium bovis.
[14] Which of the following crops would be preferred for sowing in order to enrich the soil with nitrogen?
A.
Wheat
B.
Mustard
C.
Sunflower
D.
Gram
Ans:
Gram
Explanation :
Gram flour, also known as garbanzo bean flour, chickpea flour, or besan, is pulse flour made from ground chickpeas.
[15] Which among the following has segmented body?
A.
Phylum Mollusca
B.
Phylum Arthopoda
C.
Phylum Annelida
D.
Phylum Coelenterata
Ans:
Phylum Annelida
Explanation :
The Annelida, also known as the ringed worms or segmented worms, are a large phylum, with over 17,000 extant species including ragworms, earthworms, and leeches.
[16] How many layers does Human Skin have?
A.
5
B.
7
C.
11
D.
3
Ans:
3
Explanation :
The skin is made up of three distinct layers : the outermost epidermis, the dermis in the middle and the hypodermis. The hypodermis is the deepest layer (think hypodermic needle for injections) and is also known as the subcutaneous fat layer.
[17] It causes clotting of blood -
A.
Thrombin
B.
Haemoglobin
C.
Pectin
D.
All of the above
Ans:
Thrombin
Explanation :
There are two major facets of the clotting mechanism - the platelets, and the thrombin system. The thrombin system consists of several blood proteins that, when bleeding occurs, become activated. The activated clotting proteins engage in a cascade of chemical reactions that finally produce a substance called fibrin. Red blood cells become caught up in the web, and a "red clot" forms.
[18] The largest flightless bird which can run at a great speed is -
A.
Penguin
B.
Kiwi
C.
Ostrich
D.
Emu
Ans:
Ostrich
Explanation :
The Ostrich is the largest living species of bird. They usually weigh from 63 to 145 kilograms. Although it cannot fly, the ostrich is also the fastest-running bird today; it can run up to about 70 kilometres in an hour.
[19] Ginger is a modified -
A.
roof
B.
leaf
C.
tendril
D.
stem
Ans:
stem
Explanation :
Technically, ginger is a plant with a specialized stem called a rhizome which is a horizontal underground stem that often sends out roots and shoots from its nodes. These roots can develop into stern tubers for storage or root tubers for asexual reproduction.
[20] Honey contains mainly -
A.
Proteins
B.
Carbohydrates
C.
Fat
D.
Vitamin
Ans:
Carbohydrates
Explanation :
Honey is a mixture of sugars and other compounds. With respect to carbohydrates, honey is mainly fructose (about 38.5%) and glucose (about 31.0%), making it similar to the synthetically produced inverted sugar syrup, which is approximately 48% fructose, 47% glucose, and 5% sucrose. Honey's remaining carbohydrates include maltose, sucrose, and other complex carbohydrate.
[21] In a plant, the xylem tissue conducts -
A.
water
B.
food
C.
water and food
D.
None of these
Ans:
water
Explanation :
Xylem is of a plant's vascular system that conveys water and dissolved minerals from the roots to the rest of the plant and furnishes mechanical support. It constitutes the major part of a mature woody stem or root and the wood of a tree, and consists of specialized water-conducting tissues made up mostly of several types of narrow, elongate, hollow cells.
[22] The gas released during photosynthesis :
A.
Carbon dioxide
B.
Oxygen
C.
Carbon monoxide
D.
Sulphur dioxide
Ans:
Oxygen
Explanation :
In plants, algae, and cyanobacteria, photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product. Photosynthesis is vital for all aerobic life on Earth. In oxygenic photosynthesis water is the electron donor and, since its hydrolysis releases oxygen, the equation for this process is: Carbon dioxide + Water + Light energy --> Carbohydrate + Oxygen + Water
[23] The transfer of minerals from top soil to subsoil through soil-water is called?
A.
Percolation
B.
Conduction
C.
Leaching
D.
Transpiration
Ans:
Leaching
Explanation :
Leaching refers to the loss of water-soluble plant nutrients from the soil, due to rain and irrigation.
[24] When you eat Carrot, you are eating:
A.
Root
B.
Leaf
C.
Stem
D.
Fruit
Ans:
Root
Explanation :
When we eat carrot, we are eating root part of a plant.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
Anther is the apical portion of a stamen, which produces the microspores or pollen grains. An anther normally comprises four pollen sacs arranged in two groups or lobes joined by the connective tissue to the filament
Explanation :
Eye color is a polygenic phenotypic character determined by 2 distinct factors: the pigmentation of the eye's iris and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris. In humans, the pigmentation of the iris varies from light brown to black, depending on the concentration of melanin in the iris pigment epithelium (located on the back of the iris), the melanin content within the iris stroma (located at the front of the iris), and the cellular density of the stroma.
[6] Which of the following crops are used for producing Bio fuels?
A.
Sugarcane
B.
Corn
C.
Jatropha
D.
All options are correct
Ans:
All options are correct
Explanation :
A biofuel is a fuel that is produced through contemporary biological processes, such as agriculture and anaerobic digestion, rather than a fuel produced by geological processes such as those involved in the formation of fossil fuels, such as coal and petroleum, from prehistoric biological matter.
[7] Which one of the following has most corrosive effect?
A.
Air
B.
Carbon dioxide
C.
Plants
D.
Water
Ans:
Water
Explanation :
Common corrosives are either strong acids, strong bases, or concentrated solutions of certain weak acids or weak bases.
[8] A plant with compound leaves is -
A.
Papaya
B.
Coconut
C.
Peepal
D.
Hibiscus
Ans:
Coconut
Explanation :
A compound leaf has a fully subdivided blade, each leaflet of the blade separated along a main or secondary vein. Because each leaflet can appear to be a simple leaf, it is important to recognize where the petiole occurs to identify a compound leaf. Compound leaves are a characteristic of some families of higher plants, such as the Fabaceae. The coconut palm produces a crown of pinnately compound yellow-green leaves called fronds. Each frond reaches 15 to 17 feet in length.
[9] The scientist who explained about blood circulation for the first time was -
A.
Antonyvan Leewen Hock
B.
William Harvey
C.
Gregor Mendel
D.
Ronald Ross
Ans:
William Harvey
Explanation :
William Harvey was an English physician, who described completely and in detail the systemic circulation and properties of blood being pumped to the body by the heart, though earlier writers had provided precursors of the theory. After his death the William Harvey Hospital was constructed in the town of Ashford, several miles from his birthplace of Folkestone. He is not well recognized for his accomplishments in today's society.
[10] What are the basic units from which human spare parts can be created?
A.
Nerve cells
B.
Stern cells
C.
Heart cells
D.
Kidney cells
Ans:
Stern cells
Explanation :
Stem cells are biological cells found in all multicellular organisms, that can divide (through mitosis) and differentiate into diverse specialized cell types and can self-renew to produce more stem cells. Stem cells can now be artificially grown and transformed (differentiated) into specialized cell types with characteristics consistent with cells of various tissues such as muscles or nerves through cell culture.
[11] The pollen grains of flowers pollinated by insects are :
A.
smooth and dry
B.
rough and sticky
C.
rough and dry
D.
large and, showy
Ans:
rough and sticky
Explanation :
Pollen grains are large sticky and heavy, usually with rough surfaces so that they can readily cling onto the insects bodies. They are sticky so that pollen grains settling on them are not easily displaced.
[12] Which of the following structures present in mammalian skin directly helps in keeping the body warm?
A.
Pigmented cells
B.
Sweat glands
C.
Lymph vessels
D.
Blood capillaries
Ans:
Lymph vessels
Explanation :
The lymphatic system consists of a network of specialized lymphatic vessels and various tissues and organs throughout the body that contain lymphocytes (White Blood Cells) and other cells that help the body fight infection and disease. The lymphatic vessels are similar to veins but have thinner walls. Some of these vessels are very close to the skin surface and can be found near veins; others are just under the skin and in the deeper fatty tissues near the muscles and can be found near arteries.
[13] Which from the following diseases usually spreads through milk?
A.
Tuberculosis
B.
Jaundice
C.
Diphtheria
D.
Cholera
Ans:
Tuberculosis
Explanation :
There are two forms of tuberculosis that cause significant disease in mammals. Human tuberculosis, a sometimes acute, but much more commonly, a chronic lung infection is caused by the bacterium, Mycobacterium tuberculosis. Bovine tuberculosis is a very similar disease that infects cattle, as well as deer, goats, elk and many other animals. This infection is caused by a related bacterium, Mycobacterium bovis.
[14] Which of the following crops would be preferred for sowing in order to enrich the soil with nitrogen?
A.
Wheat
B.
Mustard
C.
Sunflower
D.
Gram
Ans:
Gram
Explanation :
Gram flour, also known as garbanzo bean flour, chickpea flour, or besan, is pulse flour made from ground chickpeas.
[15] Which among the following has segmented body?
A.
Phylum Mollusca
B.
Phylum Arthopoda
C.
Phylum Annelida
D.
Phylum Coelenterata
Ans:
Phylum Annelida
Explanation :
The Annelida, also known as the ringed worms or segmented worms, are a large phylum, with over 17,000 extant species including ragworms, earthworms, and leeches.
[16] How many layers does Human Skin have?
A.
5
B.
7
C.
11
D.
3
Ans:
3
Explanation :
The skin is made up of three distinct layers : the outermost epidermis, the dermis in the middle and the hypodermis. The hypodermis is the deepest layer (think hypodermic needle for injections) and is also known as the subcutaneous fat layer.
[17] It causes clotting of blood -
A.
Thrombin
B.
Haemoglobin
C.
Pectin
D.
All of the above
Ans:
Thrombin
Explanation :
There are two major facets of the clotting mechanism - the platelets, and the thrombin system. The thrombin system consists of several blood proteins that, when bleeding occurs, become activated. The activated clotting proteins engage in a cascade of chemical reactions that finally produce a substance called fibrin. Red blood cells become caught up in the web, and a "red clot" forms.
[18] The largest flightless bird which can run at a great speed is -
A.
Penguin
B.
Kiwi
C.
Ostrich
D.
Emu
Ans:
Ostrich
Explanation :
The Ostrich is the largest living species of bird. They usually weigh from 63 to 145 kilograms. Although it cannot fly, the ostrich is also the fastest-running bird today; it can run up to about 70 kilometres in an hour.
[19] Ginger is a modified -
A.
roof
B.
leaf
C.
tendril
D.
stem
Ans:
stem
Explanation :
Technically, ginger is a plant with a specialized stem called a rhizome which is a horizontal underground stem that often sends out roots and shoots from its nodes. These roots can develop into stern tubers for storage or root tubers for asexual reproduction.
[20] Honey contains mainly -
A.
Proteins
B.
Carbohydrates
C.
Fat
D.
Vitamin
Ans:
Carbohydrates
Explanation :
Honey is a mixture of sugars and other compounds. With respect to carbohydrates, honey is mainly fructose (about 38.5%) and glucose (about 31.0%), making it similar to the synthetically produced inverted sugar syrup, which is approximately 48% fructose, 47% glucose, and 5% sucrose. Honey's remaining carbohydrates include maltose, sucrose, and other complex carbohydrate.
[21] In a plant, the xylem tissue conducts -
A.
water
B.
food
C.
water and food
D.
None of these
Ans:
water
Explanation :
Xylem is of a plant's vascular system that conveys water and dissolved minerals from the roots to the rest of the plant and furnishes mechanical support. It constitutes the major part of a mature woody stem or root and the wood of a tree, and consists of specialized water-conducting tissues made up mostly of several types of narrow, elongate, hollow cells.
[22] The gas released during photosynthesis :
A.
Carbon dioxide
B.
Oxygen
C.
Carbon monoxide
D.
Sulphur dioxide
Ans:
Oxygen
Explanation :
In plants, algae, and cyanobacteria, photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product. Photosynthesis is vital for all aerobic life on Earth. In oxygenic photosynthesis water is the electron donor and, since its hydrolysis releases oxygen, the equation for this process is: Carbon dioxide + Water + Light energy --> Carbohydrate + Oxygen + Water
[23] The transfer of minerals from top soil to subsoil through soil-water is called?
A.
Percolation
B.
Conduction
C.
Leaching
D.
Transpiration
Ans:
Leaching
Explanation :
Leaching refers to the loss of water-soluble plant nutrients from the soil, due to rain and irrigation.
[24] When you eat Carrot, you are eating:
A.
Root
B.
Leaf
C.
Stem
D.
Fruit
Ans:
Root
Explanation :
When we eat carrot, we are eating root part of a plant.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
Anther is the apical portion of a stamen, which produces the microspores or pollen grains. An anther normally comprises four pollen sacs arranged in two groups or lobes joined by the connective tissue to the filament
Explanation :
Common corrosives are either strong acids, strong bases, or concentrated solutions of certain weak acids or weak bases.
[8] A plant with compound leaves is -
A.
Papaya
B.
Coconut
C.
Peepal
D.
Hibiscus
Ans:
Coconut
Explanation :
A compound leaf has a fully subdivided blade, each leaflet of the blade separated along a main or secondary vein. Because each leaflet can appear to be a simple leaf, it is important to recognize where the petiole occurs to identify a compound leaf. Compound leaves are a characteristic of some families of higher plants, such as the Fabaceae. The coconut palm produces a crown of pinnately compound yellow-green leaves called fronds. Each frond reaches 15 to 17 feet in length.
[9] The scientist who explained about blood circulation for the first time was -
A.
Antonyvan Leewen Hock
B.
William Harvey
C.
Gregor Mendel
D.
Ronald Ross
Ans:
William Harvey
Explanation :
William Harvey was an English physician, who described completely and in detail the systemic circulation and properties of blood being pumped to the body by the heart, though earlier writers had provided precursors of the theory. After his death the William Harvey Hospital was constructed in the town of Ashford, several miles from his birthplace of Folkestone. He is not well recognized for his accomplishments in today's society.
[10] What are the basic units from which human spare parts can be created?
A.
Nerve cells
B.
Stern cells
C.
Heart cells
D.
Kidney cells
Ans:
Stern cells
Explanation :
Stem cells are biological cells found in all multicellular organisms, that can divide (through mitosis) and differentiate into diverse specialized cell types and can self-renew to produce more stem cells. Stem cells can now be artificially grown and transformed (differentiated) into specialized cell types with characteristics consistent with cells of various tissues such as muscles or nerves through cell culture.
[11] The pollen grains of flowers pollinated by insects are :
A.
smooth and dry
B.
rough and sticky
C.
rough and dry
D.
large and, showy
Ans:
rough and sticky
Explanation :
Pollen grains are large sticky and heavy, usually with rough surfaces so that they can readily cling onto the insects bodies. They are sticky so that pollen grains settling on them are not easily displaced.
[12] Which of the following structures present in mammalian skin directly helps in keeping the body warm?
A.
Pigmented cells
B.
Sweat glands
C.
Lymph vessels
D.
Blood capillaries
Ans:
Lymph vessels
Explanation :
The lymphatic system consists of a network of specialized lymphatic vessels and various tissues and organs throughout the body that contain lymphocytes (White Blood Cells) and other cells that help the body fight infection and disease. The lymphatic vessels are similar to veins but have thinner walls. Some of these vessels are very close to the skin surface and can be found near veins; others are just under the skin and in the deeper fatty tissues near the muscles and can be found near arteries.
[13] Which from the following diseases usually spreads through milk?
A.
Tuberculosis
B.
Jaundice
C.
Diphtheria
D.
Cholera
Ans:
Tuberculosis
Explanation :
There are two forms of tuberculosis that cause significant disease in mammals. Human tuberculosis, a sometimes acute, but much more commonly, a chronic lung infection is caused by the bacterium, Mycobacterium tuberculosis. Bovine tuberculosis is a very similar disease that infects cattle, as well as deer, goats, elk and many other animals. This infection is caused by a related bacterium, Mycobacterium bovis.
[14] Which of the following crops would be preferred for sowing in order to enrich the soil with nitrogen?
A.
Wheat
B.
Mustard
C.
Sunflower
D.
Gram
Ans:
Gram
Explanation :
Gram flour, also known as garbanzo bean flour, chickpea flour, or besan, is pulse flour made from ground chickpeas.
[15] Which among the following has segmented body?
A.
Phylum Mollusca
B.
Phylum Arthopoda
C.
Phylum Annelida
D.
Phylum Coelenterata
Ans:
Phylum Annelida
Explanation :
The Annelida, also known as the ringed worms or segmented worms, are a large phylum, with over 17,000 extant species including ragworms, earthworms, and leeches.
[16] How many layers does Human Skin have?
A.
5
B.
7
C.
11
D.
3
Ans:
3
Explanation :
The skin is made up of three distinct layers : the outermost epidermis, the dermis in the middle and the hypodermis. The hypodermis is the deepest layer (think hypodermic needle for injections) and is also known as the subcutaneous fat layer.
[17] It causes clotting of blood -
A.
Thrombin
B.
Haemoglobin
C.
Pectin
D.
All of the above
Ans:
Thrombin
Explanation :
There are two major facets of the clotting mechanism - the platelets, and the thrombin system. The thrombin system consists of several blood proteins that, when bleeding occurs, become activated. The activated clotting proteins engage in a cascade of chemical reactions that finally produce a substance called fibrin. Red blood cells become caught up in the web, and a "red clot" forms.
[18] The largest flightless bird which can run at a great speed is -
A.
Penguin
B.
Kiwi
C.
Ostrich
D.
Emu
Ans:
Ostrich
Explanation :
The Ostrich is the largest living species of bird. They usually weigh from 63 to 145 kilograms. Although it cannot fly, the ostrich is also the fastest-running bird today; it can run up to about 70 kilometres in an hour.
[19] Ginger is a modified -
A.
roof
B.
leaf
C.
tendril
D.
stem
Ans:
stem
Explanation :
Technically, ginger is a plant with a specialized stem called a rhizome which is a horizontal underground stem that often sends out roots and shoots from its nodes. These roots can develop into stern tubers for storage or root tubers for asexual reproduction.
[20] Honey contains mainly -
A.
Proteins
B.
Carbohydrates
C.
Fat
D.
Vitamin
Ans:
Carbohydrates
Explanation :
Honey is a mixture of sugars and other compounds. With respect to carbohydrates, honey is mainly fructose (about 38.5%) and glucose (about 31.0%), making it similar to the synthetically produced inverted sugar syrup, which is approximately 48% fructose, 47% glucose, and 5% sucrose. Honey's remaining carbohydrates include maltose, sucrose, and other complex carbohydrate.
[21] In a plant, the xylem tissue conducts -
A.
water
B.
food
C.
water and food
D.
None of these
Ans:
water
Explanation :
Xylem is of a plant's vascular system that conveys water and dissolved minerals from the roots to the rest of the plant and furnishes mechanical support. It constitutes the major part of a mature woody stem or root and the wood of a tree, and consists of specialized water-conducting tissues made up mostly of several types of narrow, elongate, hollow cells.
[22] The gas released during photosynthesis :
A.
Carbon dioxide
B.
Oxygen
C.
Carbon monoxide
D.
Sulphur dioxide
Ans:
Oxygen
Explanation :
In plants, algae, and cyanobacteria, photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product. Photosynthesis is vital for all aerobic life on Earth. In oxygenic photosynthesis water is the electron donor and, since its hydrolysis releases oxygen, the equation for this process is: Carbon dioxide + Water + Light energy --> Carbohydrate + Oxygen + Water
[23] The transfer of minerals from top soil to subsoil through soil-water is called?
A.
Percolation
B.
Conduction
C.
Leaching
D.
Transpiration
Ans:
Leaching
Explanation :
Leaching refers to the loss of water-soluble plant nutrients from the soil, due to rain and irrigation.
[24] When you eat Carrot, you are eating:
A.
Root
B.
Leaf
C.
Stem
D.
Fruit
Ans:
Root
Explanation :
When we eat carrot, we are eating root part of a plant.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
Anther is the apical portion of a stamen, which produces the microspores or pollen grains. An anther normally comprises four pollen sacs arranged in two groups or lobes joined by the connective tissue to the filament
Explanation :
William Harvey was an English physician, who described completely and in detail the systemic circulation and properties of blood being pumped to the body by the heart, though earlier writers had provided precursors of the theory. After his death the William Harvey Hospital was constructed in the town of Ashford, several miles from his birthplace of Folkestone. He is not well recognized for his accomplishments in today's society.
[10] What are the basic units from which human spare parts can be created?
A.
Nerve cells
B.
Stern cells
C.
Heart cells
D.
Kidney cells
Ans:
Stern cells
Explanation :
Stem cells are biological cells found in all multicellular organisms, that can divide (through mitosis) and differentiate into diverse specialized cell types and can self-renew to produce more stem cells. Stem cells can now be artificially grown and transformed (differentiated) into specialized cell types with characteristics consistent with cells of various tissues such as muscles or nerves through cell culture.
[11] The pollen grains of flowers pollinated by insects are :
A.
smooth and dry
B.
rough and sticky
C.
rough and dry
D.
large and, showy
Ans:
rough and sticky
Explanation :
Pollen grains are large sticky and heavy, usually with rough surfaces so that they can readily cling onto the insects bodies. They are sticky so that pollen grains settling on them are not easily displaced.
[12] Which of the following structures present in mammalian skin directly helps in keeping the body warm?
A.
Pigmented cells
B.
Sweat glands
C.
Lymph vessels
D.
Blood capillaries
Ans:
Lymph vessels
Explanation :
The lymphatic system consists of a network of specialized lymphatic vessels and various tissues and organs throughout the body that contain lymphocytes (White Blood Cells) and other cells that help the body fight infection and disease. The lymphatic vessels are similar to veins but have thinner walls. Some of these vessels are very close to the skin surface and can be found near veins; others are just under the skin and in the deeper fatty tissues near the muscles and can be found near arteries.
[13] Which from the following diseases usually spreads through milk?
A.
Tuberculosis
B.
Jaundice
C.
Diphtheria
D.
Cholera
Ans:
Tuberculosis
Explanation :
There are two forms of tuberculosis that cause significant disease in mammals. Human tuberculosis, a sometimes acute, but much more commonly, a chronic lung infection is caused by the bacterium, Mycobacterium tuberculosis. Bovine tuberculosis is a very similar disease that infects cattle, as well as deer, goats, elk and many other animals. This infection is caused by a related bacterium, Mycobacterium bovis.
[14] Which of the following crops would be preferred for sowing in order to enrich the soil with nitrogen?
A.
Wheat
B.
Mustard
C.
Sunflower
D.
Gram
Ans:
Gram
Explanation :
Gram flour, also known as garbanzo bean flour, chickpea flour, or besan, is pulse flour made from ground chickpeas.
[15] Which among the following has segmented body?
A.
Phylum Mollusca
B.
Phylum Arthopoda
C.
Phylum Annelida
D.
Phylum Coelenterata
Ans:
Phylum Annelida
Explanation :
The Annelida, also known as the ringed worms or segmented worms, are a large phylum, with over 17,000 extant species including ragworms, earthworms, and leeches.
[16] How many layers does Human Skin have?
A.
5
B.
7
C.
11
D.
3
Ans:
3
Explanation :
The skin is made up of three distinct layers : the outermost epidermis, the dermis in the middle and the hypodermis. The hypodermis is the deepest layer (think hypodermic needle for injections) and is also known as the subcutaneous fat layer.
[17] It causes clotting of blood -
A.
Thrombin
B.
Haemoglobin
C.
Pectin
D.
All of the above
Ans:
Thrombin
Explanation :
There are two major facets of the clotting mechanism - the platelets, and the thrombin system. The thrombin system consists of several blood proteins that, when bleeding occurs, become activated. The activated clotting proteins engage in a cascade of chemical reactions that finally produce a substance called fibrin. Red blood cells become caught up in the web, and a "red clot" forms.
[18] The largest flightless bird which can run at a great speed is -
A.
Penguin
B.
Kiwi
C.
Ostrich
D.
Emu
Ans:
Ostrich
Explanation :
The Ostrich is the largest living species of bird. They usually weigh from 63 to 145 kilograms. Although it cannot fly, the ostrich is also the fastest-running bird today; it can run up to about 70 kilometres in an hour.
[19] Ginger is a modified -
A.
roof
B.
leaf
C.
tendril
D.
stem
Ans:
stem
Explanation :
Technically, ginger is a plant with a specialized stem called a rhizome which is a horizontal underground stem that often sends out roots and shoots from its nodes. These roots can develop into stern tubers for storage or root tubers for asexual reproduction.
[20] Honey contains mainly -
A.
Proteins
B.
Carbohydrates
C.
Fat
D.
Vitamin
Ans:
Carbohydrates
Explanation :
Honey is a mixture of sugars and other compounds. With respect to carbohydrates, honey is mainly fructose (about 38.5%) and glucose (about 31.0%), making it similar to the synthetically produced inverted sugar syrup, which is approximately 48% fructose, 47% glucose, and 5% sucrose. Honey's remaining carbohydrates include maltose, sucrose, and other complex carbohydrate.
[21] In a plant, the xylem tissue conducts -
A.
water
B.
food
C.
water and food
D.
None of these
Ans:
water
Explanation :
Xylem is of a plant's vascular system that conveys water and dissolved minerals from the roots to the rest of the plant and furnishes mechanical support. It constitutes the major part of a mature woody stem or root and the wood of a tree, and consists of specialized water-conducting tissues made up mostly of several types of narrow, elongate, hollow cells.
[22] The gas released during photosynthesis :
A.
Carbon dioxide
B.
Oxygen
C.
Carbon monoxide
D.
Sulphur dioxide
Ans:
Oxygen
Explanation :
In plants, algae, and cyanobacteria, photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product. Photosynthesis is vital for all aerobic life on Earth. In oxygenic photosynthesis water is the electron donor and, since its hydrolysis releases oxygen, the equation for this process is: Carbon dioxide + Water + Light energy --> Carbohydrate + Oxygen + Water
[23] The transfer of minerals from top soil to subsoil through soil-water is called?
A.
Percolation
B.
Conduction
C.
Leaching
D.
Transpiration
Ans:
Leaching
Explanation :
Leaching refers to the loss of water-soluble plant nutrients from the soil, due to rain and irrigation.
[24] When you eat Carrot, you are eating:
A.
Root
B.
Leaf
C.
Stem
D.
Fruit
Ans:
Root
Explanation :
When we eat carrot, we are eating root part of a plant.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
Anther is the apical portion of a stamen, which produces the microspores or pollen grains. An anther normally comprises four pollen sacs arranged in two groups or lobes joined by the connective tissue to the filament
Explanation :
Pollen grains are large sticky and heavy, usually with rough surfaces so that they can readily cling onto the insects bodies. They are sticky so that pollen grains settling on them are not easily displaced.
[12] Which of the following structures present in mammalian skin directly helps in keeping the body warm?
A.
Pigmented cells
B.
Sweat glands
C.
Lymph vessels
D.
Blood capillaries
Ans:
Lymph vessels
Explanation :
The lymphatic system consists of a network of specialized lymphatic vessels and various tissues and organs throughout the body that contain lymphocytes (White Blood Cells) and other cells that help the body fight infection and disease. The lymphatic vessels are similar to veins but have thinner walls. Some of these vessels are very close to the skin surface and can be found near veins; others are just under the skin and in the deeper fatty tissues near the muscles and can be found near arteries.
[13] Which from the following diseases usually spreads through milk?
A.
Tuberculosis
B.
Jaundice
C.
Diphtheria
D.
Cholera
Ans:
Tuberculosis
Explanation :
There are two forms of tuberculosis that cause significant disease in mammals. Human tuberculosis, a sometimes acute, but much more commonly, a chronic lung infection is caused by the bacterium, Mycobacterium tuberculosis. Bovine tuberculosis is a very similar disease that infects cattle, as well as deer, goats, elk and many other animals. This infection is caused by a related bacterium, Mycobacterium bovis.
[14] Which of the following crops would be preferred for sowing in order to enrich the soil with nitrogen?
A.
Wheat
B.
Mustard
C.
Sunflower
D.
Gram
Ans:
Gram
Explanation :
Gram flour, also known as garbanzo bean flour, chickpea flour, or besan, is pulse flour made from ground chickpeas.
[15] Which among the following has segmented body?
A.
Phylum Mollusca
B.
Phylum Arthopoda
C.
Phylum Annelida
D.
Phylum Coelenterata
Ans:
Phylum Annelida
Explanation :
The Annelida, also known as the ringed worms or segmented worms, are a large phylum, with over 17,000 extant species including ragworms, earthworms, and leeches.
[16] How many layers does Human Skin have?
A.
5
B.
7
C.
11
D.
3
Ans:
3
Explanation :
The skin is made up of three distinct layers : the outermost epidermis, the dermis in the middle and the hypodermis. The hypodermis is the deepest layer (think hypodermic needle for injections) and is also known as the subcutaneous fat layer.
[17] It causes clotting of blood -
A.
Thrombin
B.
Haemoglobin
C.
Pectin
D.
All of the above
Ans:
Thrombin
Explanation :
There are two major facets of the clotting mechanism - the platelets, and the thrombin system. The thrombin system consists of several blood proteins that, when bleeding occurs, become activated. The activated clotting proteins engage in a cascade of chemical reactions that finally produce a substance called fibrin. Red blood cells become caught up in the web, and a "red clot" forms.
[18] The largest flightless bird which can run at a great speed is -
A.
Penguin
B.
Kiwi
C.
Ostrich
D.
Emu
Ans:
Ostrich
Explanation :
The Ostrich is the largest living species of bird. They usually weigh from 63 to 145 kilograms. Although it cannot fly, the ostrich is also the fastest-running bird today; it can run up to about 70 kilometres in an hour.
[19] Ginger is a modified -
A.
roof
B.
leaf
C.
tendril
D.
stem
Ans:
stem
Explanation :
Technically, ginger is a plant with a specialized stem called a rhizome which is a horizontal underground stem that often sends out roots and shoots from its nodes. These roots can develop into stern tubers for storage or root tubers for asexual reproduction.
[20] Honey contains mainly -
A.
Proteins
B.
Carbohydrates
C.
Fat
D.
Vitamin
Ans:
Carbohydrates
Explanation :
Honey is a mixture of sugars and other compounds. With respect to carbohydrates, honey is mainly fructose (about 38.5%) and glucose (about 31.0%), making it similar to the synthetically produced inverted sugar syrup, which is approximately 48% fructose, 47% glucose, and 5% sucrose. Honey's remaining carbohydrates include maltose, sucrose, and other complex carbohydrate.
[21] In a plant, the xylem tissue conducts -
A.
water
B.
food
C.
water and food
D.
None of these
Ans:
water
Explanation :
Xylem is of a plant's vascular system that conveys water and dissolved minerals from the roots to the rest of the plant and furnishes mechanical support. It constitutes the major part of a mature woody stem or root and the wood of a tree, and consists of specialized water-conducting tissues made up mostly of several types of narrow, elongate, hollow cells.
[22] The gas released during photosynthesis :
A.
Carbon dioxide
B.
Oxygen
C.
Carbon monoxide
D.
Sulphur dioxide
Ans:
Oxygen
Explanation :
In plants, algae, and cyanobacteria, photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product. Photosynthesis is vital for all aerobic life on Earth. In oxygenic photosynthesis water is the electron donor and, since its hydrolysis releases oxygen, the equation for this process is: Carbon dioxide + Water + Light energy --> Carbohydrate + Oxygen + Water
[23] The transfer of minerals from top soil to subsoil through soil-water is called?
A.
Percolation
B.
Conduction
C.
Leaching
D.
Transpiration
Ans:
Leaching
Explanation :
Leaching refers to the loss of water-soluble plant nutrients from the soil, due to rain and irrigation.
[24] When you eat Carrot, you are eating:
A.
Root
B.
Leaf
C.
Stem
D.
Fruit
Ans:
Root
Explanation :
When we eat carrot, we are eating root part of a plant.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
Anther is the apical portion of a stamen, which produces the microspores or pollen grains. An anther normally comprises four pollen sacs arranged in two groups or lobes joined by the connective tissue to the filament
Explanation :
There are two forms of tuberculosis that cause significant disease in mammals. Human tuberculosis, a sometimes acute, but much more commonly, a chronic lung infection is caused by the bacterium, Mycobacterium tuberculosis. Bovine tuberculosis is a very similar disease that infects cattle, as well as deer, goats, elk and many other animals. This infection is caused by a related bacterium, Mycobacterium bovis.
[14] Which of the following crops would be preferred for sowing in order to enrich the soil with nitrogen?
A.
Wheat
B.
Mustard
C.
Sunflower
D.
Gram
Ans:
Gram
Explanation :
Gram flour, also known as garbanzo bean flour, chickpea flour, or besan, is pulse flour made from ground chickpeas.
[15] Which among the following has segmented body?
A.
Phylum Mollusca
B.
Phylum Arthopoda
C.
Phylum Annelida
D.
Phylum Coelenterata
Ans:
Phylum Annelida
Explanation :
The Annelida, also known as the ringed worms or segmented worms, are a large phylum, with over 17,000 extant species including ragworms, earthworms, and leeches.
[16] How many layers does Human Skin have?
A.
5
B.
7
C.
11
D.
3
Ans:
3
Explanation :
The skin is made up of three distinct layers : the outermost epidermis, the dermis in the middle and the hypodermis. The hypodermis is the deepest layer (think hypodermic needle for injections) and is also known as the subcutaneous fat layer.
[17] It causes clotting of blood -
A.
Thrombin
B.
Haemoglobin
C.
Pectin
D.
All of the above
Ans:
Thrombin
Explanation :
There are two major facets of the clotting mechanism - the platelets, and the thrombin system. The thrombin system consists of several blood proteins that, when bleeding occurs, become activated. The activated clotting proteins engage in a cascade of chemical reactions that finally produce a substance called fibrin. Red blood cells become caught up in the web, and a "red clot" forms.
[18] The largest flightless bird which can run at a great speed is -
A.
Penguin
B.
Kiwi
C.
Ostrich
D.
Emu
Ans:
Ostrich
Explanation :
The Ostrich is the largest living species of bird. They usually weigh from 63 to 145 kilograms. Although it cannot fly, the ostrich is also the fastest-running bird today; it can run up to about 70 kilometres in an hour.
[19] Ginger is a modified -
A.
roof
B.
leaf
C.
tendril
D.
stem
Ans:
stem
Explanation :
Technically, ginger is a plant with a specialized stem called a rhizome which is a horizontal underground stem that often sends out roots and shoots from its nodes. These roots can develop into stern tubers for storage or root tubers for asexual reproduction.
[20] Honey contains mainly -
A.
Proteins
B.
Carbohydrates
C.
Fat
D.
Vitamin
Ans:
Carbohydrates
Explanation :
Honey is a mixture of sugars and other compounds. With respect to carbohydrates, honey is mainly fructose (about 38.5%) and glucose (about 31.0%), making it similar to the synthetically produced inverted sugar syrup, which is approximately 48% fructose, 47% glucose, and 5% sucrose. Honey's remaining carbohydrates include maltose, sucrose, and other complex carbohydrate.
[21] In a plant, the xylem tissue conducts -
A.
water
B.
food
C.
water and food
D.
None of these
Ans:
water
Explanation :
Xylem is of a plant's vascular system that conveys water and dissolved minerals from the roots to the rest of the plant and furnishes mechanical support. It constitutes the major part of a mature woody stem or root and the wood of a tree, and consists of specialized water-conducting tissues made up mostly of several types of narrow, elongate, hollow cells.
[22] The gas released during photosynthesis :
A.
Carbon dioxide
B.
Oxygen
C.
Carbon monoxide
D.
Sulphur dioxide
Ans:
Oxygen
Explanation :
In plants, algae, and cyanobacteria, photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product. Photosynthesis is vital for all aerobic life on Earth. In oxygenic photosynthesis water is the electron donor and, since its hydrolysis releases oxygen, the equation for this process is: Carbon dioxide + Water + Light energy --> Carbohydrate + Oxygen + Water
[23] The transfer of minerals from top soil to subsoil through soil-water is called?
A.
Percolation
B.
Conduction
C.
Leaching
D.
Transpiration
Ans:
Leaching
Explanation :
Leaching refers to the loss of water-soluble plant nutrients from the soil, due to rain and irrigation.
[24] When you eat Carrot, you are eating:
A.
Root
B.
Leaf
C.
Stem
D.
Fruit
Ans:
Root
Explanation :
When we eat carrot, we are eating root part of a plant.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
Anther is the apical portion of a stamen, which produces the microspores or pollen grains. An anther normally comprises four pollen sacs arranged in two groups or lobes joined by the connective tissue to the filament
Explanation :
The Annelida, also known as the ringed worms or segmented worms, are a large phylum, with over 17,000 extant species including ragworms, earthworms, and leeches.
[16] How many layers does Human Skin have?
A.
5
B.
7
C.
11
D.
3
Ans:
3
Explanation :
The skin is made up of three distinct layers : the outermost epidermis, the dermis in the middle and the hypodermis. The hypodermis is the deepest layer (think hypodermic needle for injections) and is also known as the subcutaneous fat layer.
[17] It causes clotting of blood -
A.
Thrombin
B.
Haemoglobin
C.
Pectin
D.
All of the above
Ans:
Thrombin
Explanation :
There are two major facets of the clotting mechanism - the platelets, and the thrombin system. The thrombin system consists of several blood proteins that, when bleeding occurs, become activated. The activated clotting proteins engage in a cascade of chemical reactions that finally produce a substance called fibrin. Red blood cells become caught up in the web, and a "red clot" forms.
[18] The largest flightless bird which can run at a great speed is -
A.
Penguin
B.
Kiwi
C.
Ostrich
D.
Emu
Ans:
Ostrich
Explanation :
The Ostrich is the largest living species of bird. They usually weigh from 63 to 145 kilograms. Although it cannot fly, the ostrich is also the fastest-running bird today; it can run up to about 70 kilometres in an hour.
[19] Ginger is a modified -
A.
roof
B.
leaf
C.
tendril
D.
stem
Ans:
stem
Explanation :
Technically, ginger is a plant with a specialized stem called a rhizome which is a horizontal underground stem that often sends out roots and shoots from its nodes. These roots can develop into stern tubers for storage or root tubers for asexual reproduction.
[20] Honey contains mainly -
A.
Proteins
B.
Carbohydrates
C.
Fat
D.
Vitamin
Ans:
Carbohydrates
Explanation :
Honey is a mixture of sugars and other compounds. With respect to carbohydrates, honey is mainly fructose (about 38.5%) and glucose (about 31.0%), making it similar to the synthetically produced inverted sugar syrup, which is approximately 48% fructose, 47% glucose, and 5% sucrose. Honey's remaining carbohydrates include maltose, sucrose, and other complex carbohydrate.
[21] In a plant, the xylem tissue conducts -
A.
water
B.
food
C.
water and food
D.
None of these
Ans:
water
Explanation :
Xylem is of a plant's vascular system that conveys water and dissolved minerals from the roots to the rest of the plant and furnishes mechanical support. It constitutes the major part of a mature woody stem or root and the wood of a tree, and consists of specialized water-conducting tissues made up mostly of several types of narrow, elongate, hollow cells.
[22] The gas released during photosynthesis :
A.
Carbon dioxide
B.
Oxygen
C.
Carbon monoxide
D.
Sulphur dioxide
Ans:
Oxygen
Explanation :
In plants, algae, and cyanobacteria, photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product. Photosynthesis is vital for all aerobic life on Earth. In oxygenic photosynthesis water is the electron donor and, since its hydrolysis releases oxygen, the equation for this process is: Carbon dioxide + Water + Light energy --> Carbohydrate + Oxygen + Water
[23] The transfer of minerals from top soil to subsoil through soil-water is called?
A.
Percolation
B.
Conduction
C.
Leaching
D.
Transpiration
Ans:
Leaching
Explanation :
Leaching refers to the loss of water-soluble plant nutrients from the soil, due to rain and irrigation.
[24] When you eat Carrot, you are eating:
A.
Root
B.
Leaf
C.
Stem
D.
Fruit
Ans:
Root
Explanation :
When we eat carrot, we are eating root part of a plant.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
Anther is the apical portion of a stamen, which produces the microspores or pollen grains. An anther normally comprises four pollen sacs arranged in two groups or lobes joined by the connective tissue to the filament
Explanation :
There are two major facets of the clotting mechanism - the platelets, and the thrombin system. The thrombin system consists of several blood proteins that, when bleeding occurs, become activated. The activated clotting proteins engage in a cascade of chemical reactions that finally produce a substance called fibrin. Red blood cells become caught up in the web, and a "red clot" forms.
[18] The largest flightless bird which can run at a great speed is -
A.
Penguin
B.
Kiwi
C.
Ostrich
D.
Emu
Ans:
Ostrich
Explanation :
The Ostrich is the largest living species of bird. They usually weigh from 63 to 145 kilograms. Although it cannot fly, the ostrich is also the fastest-running bird today; it can run up to about 70 kilometres in an hour.
[19] Ginger is a modified -
A.
roof
B.
leaf
C.
tendril
D.
stem
Ans:
stem
Explanation :
Technically, ginger is a plant with a specialized stem called a rhizome which is a horizontal underground stem that often sends out roots and shoots from its nodes. These roots can develop into stern tubers for storage or root tubers for asexual reproduction.
[20] Honey contains mainly -
A.
Proteins
B.
Carbohydrates
C.
Fat
D.
Vitamin
Ans:
Carbohydrates
Explanation :
Honey is a mixture of sugars and other compounds. With respect to carbohydrates, honey is mainly fructose (about 38.5%) and glucose (about 31.0%), making it similar to the synthetically produced inverted sugar syrup, which is approximately 48% fructose, 47% glucose, and 5% sucrose. Honey's remaining carbohydrates include maltose, sucrose, and other complex carbohydrate.
[21] In a plant, the xylem tissue conducts -
A.
water
B.
food
C.
water and food
D.
None of these
Ans:
water
Explanation :
Xylem is of a plant's vascular system that conveys water and dissolved minerals from the roots to the rest of the plant and furnishes mechanical support. It constitutes the major part of a mature woody stem or root and the wood of a tree, and consists of specialized water-conducting tissues made up mostly of several types of narrow, elongate, hollow cells.
[22] The gas released during photosynthesis :
A.
Carbon dioxide
B.
Oxygen
C.
Carbon monoxide
D.
Sulphur dioxide
Ans:
Oxygen
Explanation :
In plants, algae, and cyanobacteria, photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product. Photosynthesis is vital for all aerobic life on Earth. In oxygenic photosynthesis water is the electron donor and, since its hydrolysis releases oxygen, the equation for this process is: Carbon dioxide + Water + Light energy --> Carbohydrate + Oxygen + Water
[23] The transfer of minerals from top soil to subsoil through soil-water is called?
A.
Percolation
B.
Conduction
C.
Leaching
D.
Transpiration
Ans:
Leaching
Explanation :
Leaching refers to the loss of water-soluble plant nutrients from the soil, due to rain and irrigation.
[24] When you eat Carrot, you are eating:
A.
Root
B.
Leaf
C.
Stem
D.
Fruit
Ans:
Root
Explanation :
When we eat carrot, we are eating root part of a plant.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
Anther is the apical portion of a stamen, which produces the microspores or pollen grains. An anther normally comprises four pollen sacs arranged in two groups or lobes joined by the connective tissue to the filament
Explanation :
Technically, ginger is a plant with a specialized stem called a rhizome which is a horizontal underground stem that often sends out roots and shoots from its nodes. These roots can develop into stern tubers for storage or root tubers for asexual reproduction.
[20] Honey contains mainly -
A.
Proteins
B.
Carbohydrates
C.
Fat
D.
Vitamin
Ans:
Carbohydrates
Explanation :
Honey is a mixture of sugars and other compounds. With respect to carbohydrates, honey is mainly fructose (about 38.5%) and glucose (about 31.0%), making it similar to the synthetically produced inverted sugar syrup, which is approximately 48% fructose, 47% glucose, and 5% sucrose. Honey's remaining carbohydrates include maltose, sucrose, and other complex carbohydrate.
[21] In a plant, the xylem tissue conducts -
A.
water
B.
food
C.
water and food
D.
None of these
Ans:
water
Explanation :
Xylem is of a plant's vascular system that conveys water and dissolved minerals from the roots to the rest of the plant and furnishes mechanical support. It constitutes the major part of a mature woody stem or root and the wood of a tree, and consists of specialized water-conducting tissues made up mostly of several types of narrow, elongate, hollow cells.
[22] The gas released during photosynthesis :
A.
Carbon dioxide
B.
Oxygen
C.
Carbon monoxide
D.
Sulphur dioxide
Ans:
Oxygen
Explanation :
In plants, algae, and cyanobacteria, photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product. Photosynthesis is vital for all aerobic life on Earth. In oxygenic photosynthesis water is the electron donor and, since its hydrolysis releases oxygen, the equation for this process is: Carbon dioxide + Water + Light energy --> Carbohydrate + Oxygen + Water
[23] The transfer of minerals from top soil to subsoil through soil-water is called?
A.
Percolation
B.
Conduction
C.
Leaching
D.
Transpiration
Ans:
Leaching
Explanation :
Leaching refers to the loss of water-soluble plant nutrients from the soil, due to rain and irrigation.
[24] When you eat Carrot, you are eating:
A.
Root
B.
Leaf
C.
Stem
D.
Fruit
Ans:
Root
Explanation :
When we eat carrot, we are eating root part of a plant.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
Anther is the apical portion of a stamen, which produces the microspores or pollen grains. An anther normally comprises four pollen sacs arranged in two groups or lobes joined by the connective tissue to the filament
Explanation :
Xylem is of a plant's vascular system that conveys water and dissolved minerals from the roots to the rest of the plant and furnishes mechanical support. It constitutes the major part of a mature woody stem or root and the wood of a tree, and consists of specialized water-conducting tissues made up mostly of several types of narrow, elongate, hollow cells.
[22] The gas released during photosynthesis :
A.
Carbon dioxide
B.
Oxygen
C.
Carbon monoxide
D.
Sulphur dioxide
Ans:
Oxygen
Explanation :
In plants, algae, and cyanobacteria, photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product. Photosynthesis is vital for all aerobic life on Earth. In oxygenic photosynthesis water is the electron donor and, since its hydrolysis releases oxygen, the equation for this process is: Carbon dioxide + Water + Light energy --> Carbohydrate + Oxygen + Water
[23] The transfer of minerals from top soil to subsoil through soil-water is called?
A.
Percolation
B.
Conduction
C.
Leaching
D.
Transpiration
Ans:
Leaching
Explanation :
Leaching refers to the loss of water-soluble plant nutrients from the soil, due to rain and irrigation.
[24] When you eat Carrot, you are eating:
A.
Root
B.
Leaf
C.
Stem
D.
Fruit
Ans:
Root
Explanation :
When we eat carrot, we are eating root part of a plant.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
Anther is the apical portion of a stamen, which produces the microspores or pollen grains. An anther normally comprises four pollen sacs arranged in two groups or lobes joined by the connective tissue to the filament
Explanation :
Leaching refers to the loss of water-soluble plant nutrients from the soil, due to rain and irrigation.
[24] When you eat Carrot, you are eating:
A.
Root
B.
Leaf
C.
Stem
D.
Fruit
Ans:
Root
Explanation :
When we eat carrot, we are eating root part of a plant.
[25] The floral part that produces pollen grains is -
A.
Sepal
B.
Petal
C.
Anther
D.
Ovary
Ans:
Anther
Explanation :
Anther is the apical portion of a stamen, which produces the microspores or pollen grains. An anther normally comprises four pollen sacs arranged in two groups or lobes joined by the connective tissue to the filament
Explanation :
Anther is the apical portion of a stamen, which produces the microspores or pollen grains. An anther normally comprises four pollen sacs arranged in two groups or lobes joined by the connective tissue to the filament