Page 9 - Ripples SCIENCE 7 - TEJPUR Edition 2024 Answer Key

8. Chloroplast is the site of photosynthesis.

Ans. 1. (F) 2. (F) 3. (T) 4. (F) 5. (F) 6. (T) 7. (T) 8. (T)

D. Match the following.

Column A Column B

1. Saprotroph (a) Pitcher plant

2. Chlorophyll (b) Food factory of plants

3. Rhizobium (c) Green plant leaf
4. Cuscuta (d) Fungi

5. Insects (e) Nitrogen-fixing

6. Mango tree (f) Stomata

7. Leaf (g) Parasite

8. Tiny pores present on leaves (h) Raw materials

9. Carbon dioxide and water (i) Dead and decaying organic matter

10. Mushroom (j) Autotroph

Ans. 1. (i) 2. (c) 3. (e) 4. (g) 5. (a) 6. (j) 7. (b) 8. (f) 9. (h) 10. (d)

E. Very short-answer questions.
1. Define the following.

(a) Photosynthesis

Ans. Photosynthesis : The process by which green plants prepare their food with the help

of carbon dioxide and water in the presence of sunlight and chlorophyll is called

photosynthesis.

(b) Chlorophyll

Ans. Chlorophyll: It is a green pigment present in the leaves of a plant that absorbs energy
from sunlight.

(c) Stomata

Ans. Stomata: These are tiny pores present on the surface of the leaves of the plant. These

help on taking in carbon dioxide from air and giving out oxygen during photosynthesis.

2. Write the equation of photosynthesis.

Ans. The equation of photosynthesis can be given as follows :
Sunlight
Carbon dioxide + Water Chlorophyl Glucose + Oxygen.

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