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What are the two entry points for electrons in the electron transport chain.
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What are the two entry points for electrons in the electron transport chain.

User Godheaper
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Answer:

How do electrons enter the electron transport chain?

All of the electrons that enter the transport chain come from NADH and FADH 2​start subscript, 2, end subscript molecules produced during earlier stages of cellular respiration: glycolysis, pyruvate oxidation, and the citric acid cycle.

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User Astravagrant
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