Question

Assertion (A): Photosynthesis is the reverse process of cellular respiration.

Reason (R): Cellular respiration releases carbon dioxide and water, while photosynthesis uses them to produce glucose.

Options

• 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

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

Explanation:

The assertion is true because photosynthesis and cellular respiration are biochemically opposite processes; the chemical products of one serve directly as the starting reactants for the other. The reason is also true and provides the correct explanation because it outlines this exact reverse relationship. Photosynthesis consumes carbon dioxide and water to construct glucose, while cellular respiration breaks down that glucose to release carbon dioxide and water as byproducts.