Question

8. In addition to carbon dioxide and water, state two other conditions necessary for the process of photosynthesis
to take place
9. Apart from sunlight and chlorophyll, what other things are required to make food by photosynthesis?
10. (a) Name a gps used in photosynthesis,
Name a gps produced in photosynthesis
11. The leaves of a plant first prepare food A by photosynthesis. Food Athen gets converted into food B. What
are A and B ?
12. Which substance is used to remove chlorophyll from a green leaf during photosynthesis experiments ?
13. Why do we boll the leaf in alcohol when we are testing it for starch?
14. (a) Name the pigment in leaves which absorbs sunlight energy.
chy What is the colour of this pigment?
15. Name the pigment which can absorb solar energy.
16. Name the organelle of plant cells in which photosynthesis occurs.
17. Apart from carbon dioxide and water, name four other raw materials which are needed by the plants.
18. Where is chlorophyll mainly present in a plant?
19. What is the name of those cells in the leaf of a plant which control the opening and closing of stomata?
20. Name an animal whose process of obtaining food is called phagocytosis.
21. All the animals can be divided into three groups on the basis of their eating habits. Name the three groups.
22. What is the scientific name of the animals which are:
(1) only meat eaters?
6) only plant eaters?
Cl) both, plant and meat eater

Answer 1

8. Sunlight and chlorophyll

9. carbon dioxide and water

10. carbon dioxide gas is used.

oxygen gas is released or produced.

11. A- glucose

B- starch

12. Alcohol is used to remove chlorophyll.

13. to remove chlorophyll from the leaf we boil the leaf in alcohol.

14. pigment is chlorophyll and it is green in colour.

15. chlorophyll

16. chloroplast (plastid)

17. sunlight, chlorophyll, water, soil.

18. leaves.

19. guard cells.

20. amoeba

21. herbivores, carnivorous, omnivorous

22. 1) carnivorous

2) herbivores

3) omnivorous

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