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29 January, 05:57

What happens to the free energy released as electrons are passed from photosystem ii to photosystem i through a series of electron carriers? it is used to establish and maintain a proton gradient. it is used to phosphorylate nad + to nadph. it excites electrons of the reaction center in photosystem i. it is used to synthesize atp through substrate-level phosphorylation?

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  1. 29 January, 06:08
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    The correct answer is: It is used to synthesize ATP through substrate-level phosphorylation.

    The free energy released as electrons are passed from photosystem II to photosystem I drive pumping of H + and building a gradient. H + flow down their gradient and when they pass through ATP synthase, the ATP is produced by substrate-level phosphorylation (ADP+Pi).
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