The product(s) of cyclic phosphorylation is/are:
Correct answer: A. ATP
- A. ATP
- B. NADP
- C. NADP and ATP
- D. NADP, ATP and oxygen
Explanation
The product(s) of cyclic phosphorylation are ATP only.Cyclic phosphorylation is a process that occurs in the chloroplasts of plants. It is a type of photophosphorylation, which means that it uses light energy to produce ATP. However, cyclic phosphorylation does not produce NADPH, which is a different molecule that is also produced by photophosphorylation.The process of cyclic phosphorylation begins with the absorption of light energy by chlorophyll molecules in the thylakoid membrane. This energy is used to pump protons across the thylakoid membrane, creating a proton gradient. The proton gradient is then used to drive the synthesis of ATP by the enzyme ATP synthase.No electrons are transferred to NADP+ in cyclic phosphorylation, so NADPH is not produced. Therefore, the only product of cyclic phosphorylation is ATP.
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