Question

Write the steps of an experiment to prove that light is necessary for photosynthesis

CBSE Class X Science SA 1 ( 2 marks)

Answer 1

1.   Destarch leaf of the potted plant

2.   Using ships of black paper, cover a portion of the leaf.

3.   Expose the plant to sunlight for four hours.

4.   Pluck the experimental leaf.

5.   Remove the black paper ships from the leaf.

6.   Test the experimental leaf for presence of starch.

Answer 2

1.   Destarch leaf of the potted plant

2.   Using ships of black paper, cover a portion of the leaf.

3.   Expose the plant to sunlight for four hours.

4.   Pluck the experimental leaf.

5.   Remove the black paper ships from the leaf.

6.   Test the experimental leaf for presence of starch.