1. a
2. Pericardium
3. Absorption of glycerol; Facilitated diffusion in the method of absorption of the others.
4. Plays a major role in the coagulation of blood; Plasma proteins and their functions.
5. $ It is against concentration gradient
$ It utilises energy.
6. D - Immunity
7. a) Emphysema
b) The respiratory surface is reduced, thereby reducing vital capacity.
8. a) Partially converts starch to a form of sugar called maltose.
b) Mucus
c) Lysozyme
d) Destroys germs that enter the body through food to some extent.
9. a) Melvin Calvin: Explained the various stages of the formation of glucose during photosynthesis.
b) Van Neil: Proved that the source of oxygen evolved during photosynthesis is water.
10. b, c
11. a- Aorta; b-Different parts of the body
c-Veins; d-Right atrium
12. Sucrose - Sugar cane
Fructose - Fruits
Fat - Oil seeds
Protein Pulses
13. Lymph helps in the absorption and transport of fatty acids and glycerols from the small intestine. When lymph passes through lymph nodes, the white blood cells in lymph destroy pathogenic bacteria present in it.
14. a. A - Carbon dioxide
B- Oxygen
b. C - Capillary wall
D - Wall of the alveolus
c. The inner wall of the alveolus is always moist. The walls of the alveoli and capillaries are made up of a single layer of cells
15. Water is lost from the intercellular spaces of leaves through stomata by transpiration. This reduces the pressure in the cells of leaves. In order to compensate this pressure difference, water enters these cells from adjacent cells by osmosis. Thus the transpiration pull developed due to transpiration helps to carry water to the leaves high above.
16. i-b-4; ii-c-1; iii-d-2
17. a. Light reaction (Light phase)
b. In the grana of the chloroplast.
c. $ Light emergy is converted into chem ical energy and stored as ATP molecules.
$ Water is split into hydrogen and oxygen.
18. CO2 is removed in the following ways.
$ Dissolves in blood plasma.
$ As carbaminohaemoglobin formed by the combination with haemoglobin.
$ As bicarbonates formed by dissolving in the water in the red blood cells.
19.
20. a - Straightens; b- Relaxes; c-Increases; d- Decreases; e-Becomes lower than the atmospheric pressure; f-Becomes higher than the atmospheric pressure; g-Rise; h-Lower.
21.
2. Pericardium
3. Absorption of glycerol; Facilitated diffusion in the method of absorption of the others.
4. Plays a major role in the coagulation of blood; Plasma proteins and their functions.
5. $ It is against concentration gradient
$ It utilises energy.
6. D - Immunity
7. a) Emphysema
b) The respiratory surface is reduced, thereby reducing vital capacity.
8. a) Partially converts starch to a form of sugar called maltose.
b) Mucus
c) Lysozyme
d) Destroys germs that enter the body through food to some extent.
9. a) Melvin Calvin: Explained the various stages of the formation of glucose during photosynthesis.
b) Van Neil: Proved that the source of oxygen evolved during photosynthesis is water.
10. b, c
11. a- Aorta; b-Different parts of the body
c-Veins; d-Right atrium
12. Sucrose - Sugar cane
Fructose - Fruits
Fat - Oil seeds
Protein Pulses
13. Lymph helps in the absorption and transport of fatty acids and glycerols from the small intestine. When lymph passes through lymph nodes, the white blood cells in lymph destroy pathogenic bacteria present in it.
14. a. A - Carbon dioxide
B- Oxygen
b. C - Capillary wall
D - Wall of the alveolus
c. The inner wall of the alveolus is always moist. The walls of the alveoli and capillaries are made up of a single layer of cells
15. Water is lost from the intercellular spaces of leaves through stomata by transpiration. This reduces the pressure in the cells of leaves. In order to compensate this pressure difference, water enters these cells from adjacent cells by osmosis. Thus the transpiration pull developed due to transpiration helps to carry water to the leaves high above.
16. i-b-4; ii-c-1; iii-d-2
17. a. Light reaction (Light phase)
b. In the grana of the chloroplast.
c. $ Light emergy is converted into chem ical energy and stored as ATP molecules.
$ Water is split into hydrogen and oxygen.
18. CO2 is removed in the following ways.
$ Dissolves in blood plasma.
$ As carbaminohaemoglobin formed by the combination with haemoglobin.
$ As bicarbonates formed by dissolving in the water in the red blood cells.
19.
20. a - Straightens; b- Relaxes; c-Increases; d- Decreases; e-Becomes lower than the atmospheric pressure; f-Becomes higher than the atmospheric pressure; g-Rise; h-Lower.
21.
22. a. A- Aorta; B-Pulmonary vein
b. C- Tricuspid valve; D-Bicuspid valve
c. Aorta carries blood to the various parts of the body.
d. Tricuspid valve permits blood to flow from the right atrium to the right ventricle. It prevents the flow of blood from the right ventricle to the right atrium.
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