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Why are H+ ions pumped into the thylakoid space as the electrons pass through the cytochrome complex from PS2 to PS1 during photosynthesis?

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closed as off-topic by theforestecologist, David, iayork, The Last Word, Chris Jan 22 '18 at 20:34

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Homework questions are off-topic on Biology unless you have shown your attempt at an answer. For more information see our homework policy." – theforestecologist, David, iayork, The Last Word, Chris
If this question can be reworded to fit the rules in the help center, please edit the question.

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    $\begingroup$ This is covered in most texts of biochemistry. Have you tried to find the answer yourself as explained in the Help Centre? Try, for example, Section 19.3 of Berg et al. online. $\endgroup$ – David Jan 16 '18 at 14:54