Question

The production of starch, and not glucose, is often used as a measure of photosynthesis in leaves because:

(a) starch is the immediate product of photosynthesis.

(b) glucose formed in photosynthesis soon gets converted into starch.

(c) starch is soluble in water.

(d) sugar cannot be tested.

Answer 1

Answer: Option B

Explanation: The food prepared by green leaves during photosynthesis process is glucose. Glucose formed in photosynthesis soon gets converted into starch. This glucose is utilised by the plant and extra glucose is stored in form of starch in the leaves. As glucose gets utilised so its presence cannot be detected. Therefore, production of starch is used as a measure of photosynthesis in leaves.