Question

Assertion (A): Mineral salt absorption is an active process.

Reason (R): Metabolic energy is not used in active absorption.

विकल्प

• Both A and R are true and R is the correct explanation of A.

• Both A and R are true but R is not the correct explanation of A.

• A is true but R is false.

• A is false but R is true.

Answer 1

A is true but R is false.

Explanation:

The assertion is true because plant roots absorb mineral salts primarily through active transport, pushing ions against their concentration gradient from the soil into root cells. However, the reason is false because active absorption by definition explicitly requires the expenditure of metabolic energy in the form of ATP. Since active processes cannot function without cellular energy, the reason’s claim is entirely incorrect.