PHOTOSYNTHESIS
LIGHT DEPENDENT REACTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the final electron acceptor for cyclic photophosphorylation?
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NADP+
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Ferredoxin (Fd)
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Photosystem I reaction center
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oxygen
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Explanation:
Detailed explanation-1: -NADP is the ultimate electron acceptor.
Detailed explanation-2: -photosynthesis, light reaction The final electron acceptor is NADP+, which is reduced to NADPH. NADPH generated from light reactions is used in sugar synthesis in dark reactions.
Detailed explanation-3: -So, the correct answer is, ‘ferredoxin. ‘
Detailed explanation-4: -Photosystem-I (PS-I) is an integral membrane protein complex that absorbs solar energy and mediate electron transfer from plastocyanin to ferredoxin. Ferredoxin is the iron-containing sulphur protein, which is the first pigment that accepts electrons.
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