The primary electron acceptor in cyclic photophosphorylation is:
Correct answer: C. NADP
- A. Carbon dioxide
- B. A protein that contains iron and sulphur
- C. NADP
- D. FAD
Explanation
c) NADP:NADP (nicotinamide adenine dinucleotide phosphate) is the correct answer. In cyclic photophosphorylation, the primary electron acceptor is a molecule of NADP+. During the light-dependent reactions of photosynthesis, electrons are transferred from photosystem I (PSI) to the primary electron acceptor, NADP+, which is reduced to NADPH. NADPH is then utilized in the Calvin cycle for the production of carbohydrates. it is a correct option.
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Plants require macronutrients and micronutrients for growth, and mineral deficiencies produce recognizable symptoms. Transport involves water and minerals through xylem by transpiration pull, cohesion and adhesion, while phloem translocates sugars from sources to sinks. Root pressure and transpiration are distinct mechanisms.
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