alleryCyclic photophosphorylation also takes place when the only available light is
ABelow 500 nm only
BBetween 400 and 450 nm
COnly in the green band
DBeyond 680 nm only
Answer & Solution
Correct answer: D. Beyond 680 nm only
Light beyond 680 nm cannot excite P680 of PS II, so only PS I works and electrons cycle back.
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