Question

ATP synthesis during photosynthesis is termed as

• A. Photophosphorylation
• B. Oxidative phosphorylation
• C. Reductive phosphorylation
• D. Calvin synthesis

Answer 1

The correct option is A Photophosphorylation

• Photophosphorylation refers to the synthesis of ATP from ADP and $P_i$ in the presence of sunlight and occurs in chloroplast wherein photosynthetic pigments absorb the sunlight.
• Oxidative phosphorylation refers to the synthesis of ATP by ADP and $P_i$ driven by energy released from the oxidation of reducing powers NADH and FAD by transfer of their electrons to oxygen. It occurs in the inner mitochondrial membrane.
• Calvin synthesis is a series of assimilatory reactions that use ATP energy to drive the fixation of carbon dioxide into organic compounds.

So, the correct answer is option A.