Question

Oxidative phosphorylation occurs in respiration and _______ occurs in photosynthesis.

• A. Oxidative phosphorylation
• B. Reductive phosphorylation
• C. Cyclic phosphorylation
• D. None of the above

Answer 1

Answer: (C)

Cyclic phosphorylation

Phosphorylation refers to the process of formation of ATP. During respiration, the oxidation of NADH and FADH${}_2$ results in ATP formation, hence called oxidative phosphorylation. In photosynthesis, the photosystem II is involved in cyclic photophosphorylation.

Hence, the correct answer is 'Cyclic Phosphorylation'