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Why are NADH and FADH2 necessities in the electron transport chain?

A. They accept electrons in order to power the electron transport chain
B. They move down the electron transport chain
C. They remove electrons from the electron transport chain
D. THey move electrons to the electron transport chain

1 answer

The correct answer is D. They move electrons to the electron transport chain.

NADH and FADH2 are essential because they serve as electron carriers that transfer high-energy electrons to the electron transport chain, where their energy is used to produce ATP through oxidative phosphorylation.