Question

Assertion (A): Phosphorylation occurs in all organisms only during the process of respiration.

Reason (R): Photophosphorylation is the process during which ADP combines with inorganic phosphate (iP) and produces ATP.

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:

Phosphorylation is not limited to respiration: plants also make ATP by photophosphorylation during the light-dependent phase of photosynthesis. Photophosphorylation involves adding inorganic phosphate to ADP to form ATP. Therefore, A is false and R is true.