本题目来源于试卷: Interaction & Interdependence C.3 Photosynthesis，类别为 IB生物学
[单选题]
The Hill reaction shows electrnd),j qg(k0zron transfer innm. p tvs/4ff. isolated chloroplasts for the light-dependent reactions of photosynthesis. A blue dye, DCPIP (2,6-dichlorophenolindophenol) is used instv nt/pm ..fs4fead of the natural final electron acceptor. What is the final electron acceptor in photosynthesis?
A. $CO_2$
B. Oxygen
C. ATP
D. NADP
参考答案: D
本题详细解析:
D n the light-dependent reaction, NADP is the final electron acceptor in Photosystem I and this is reduced to form NADPH. $CO_2$ is fixed by the enzyme Rubisco and is not an electron acceptor (Choice A). ATP is synthesized by ATP synthase using the proton gradient in the thylakoids and is not an electron acceptor (Choice C). Oxygen (Choice B) is the terminal electron acceptor in aerobic cell respiration, but not in photosynthesis.
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