Which of the following statements describes the function of the electron transport chain (ETC)in photosynthesis? A) As electrons move through the ETC,they release energy that is used to concentrate protons in the thylakoid lumen. B) As electrons move through the ETC,they catalyze the formation of ATP. C) The ETC releases CO₂ from glucose. D) The ETC captures and stores the electrons that are given off by NADPH.

Question

Quizplus · Accepted Answer

The function of the electron transport chain (ETC) in photosynthesis is to release energy as electrons move through it. This energy is used to concentrate protons in the thylakoid lumen, creating a proton gradient that drives the synthesis of ATP. Option B is incorrect because the formation of ATP is catalyzed by ATP synthase, not the ETC. Option C is incorrect because the ETC does not release CO₂ from glucose, but rather releases energy to synthesize ATP. Option D is incorrect because the ETC does not capture and store electrons from NADPH, but rather receives electrons from photosystem II.

Which of the Following Statements Describes the Function of the Electron