Page 8 - Ripples SCIENCE 7 - TEJPUR Edition 2024 Answer Key

9. The presence of ................................ distinguishes a plant cell from an animal

cell.

(a) Vacuole (b) Cell wall (c) Nucleus (d) Cell membrane

Ans. (d)

B. Fill in the blanks.

1. The green pigment present in the chloroplast of the leaf cell is called .............. .

Ans. chlorophyll
2. .............. and .............. are produced during photosynthesis.

Ans. Glucose, oxygen

3. Plants prepare their food by using raw materials present in their .............. .

Ans. surroundings

4. .............. helps leaves to capture energy from sunlight.

Ans. Chlorophyll

5. During photosynthesis, plants take-in .............. and release .............. .

Ans. carbon dioxide, oxygen

6. Plant that has both autotrophic and heterotrophic mode of nutrition is .............. .
Ans. pitcher plant

7. .............. in the leaves take-in carbon dioxide and release oxygen.

Ans. Stomata

8. If a plant is kept in a completely dark room for 2 to 3 days, it will become free from

.............. .

Ans. starch

C. State whether the following statements are true (T) or false (F).
1. The type of relationship in which organisms live together and share shelter and

nutrients, is called parasitic relationship.

2. Carbon dioxide is released during photosynthesis.

3. Chlorophyll is the green pigment present in leaves.

4. Plants are heterotrophs.

5. Photosynthesis takes place all the time.

6. Starch is also a carbohydrate.

7. Amarbel is an example of a parasitic plant.

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