The electrons from Fd to NADP are transferred by which enzyme?
Correct answer: B. NADP reductase
- A. NADP Oxidase
- B. NADP reductase
- C. ATP synthase
- D. Both A and B
Explanation
The transfer of electrons from ferredoxin (Fd) to NADP+ during the light-dependent reactions of photosynthesis is facilitated by the enzyme ferredoxin-NADP+ reductase (FNR). This enzyme plays a key role in the conversion of NADP+ to NADPH, which is an important molecule for the synthesis of sugars during the photosynthetic process. The transfer of electrons from ferredoxin to NADP+ is part of the final steps in the electron transport chain of the thylakoid membrane.
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Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
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