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What is the pathway electrons are passed through the electron transport chain? How many electrons are...

What is the pathway electrons are passed through the electron transport chain? How many electrons are donated by each NADH and FADH2? How many electrons can each complex accept at one time? How many protons are pumped by each complex?

How many electrons does oxygen accept at one time? Why is this important?

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Answer #1

Electron transport pathway: NADH-COENZYME q oxidoreductase complex II succinate Q oxidoreductase, complex III Q cytochrome III oxidoreductase, cytochrome c oxidase.

NADH: 2 electrons, FADH2: 2 electrons

Complex I 2 electrons, complex II2 electrons, complex III1 Electron, cytochrome C 1 Electron, complex IV 2 ELECTRONS

Complex I 4 protons reduced 4 protons added complex II2 protons reduced 4 protons added complex IV 2 protons reduced 2 protons added, 2 electrons to form water molecule and maintain proton gradient

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