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Electron Transfer to NADP+
Grade Level
AP Biology
APB.186 Electron Transfer to NADP+
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In a proposed model, NADP+ accepts electrons directly from plastoquinone in the thylakoid membrane. Which evidence would most directly contradict the model?
A
Blocking ATP synthase lowers ATP formation while plastoquinone remains present.
B
Adding carbon dioxide increases Calvin cycle activity when NADPH is already available.
C
Blocking photosystem I-to-ferredoxin transfer lowers NADPH even when plastoquinone is reduced.
D
Water splitting releases oxygen when photosystem II is illuminated.
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