Question

Assertion (A): Palisade cells of mesophyll are loosely arranged towards the lower epidermis of a dorsiventral leaf.

Reason (R): Palisade cells contain the maximum amount of chlorophyll, trap solar energy and help in the process of photosynthesis.

Options

• A is True and R is False.

• A is False and R is True.

• Both A and R are True.

• Both A and R are False.

Answer 1

A is False and R is True.

Explanation:

In a dorsiventral leaf, palisade cells are closely packed beneath the upper epidermis; the loosely arranged cells toward the lower epidermis are spongy mesophyll. Palisade cells contain abundant chlorophyll and are important in capturing light for photosynthesis. Thus, A is false and R is true.