Which carrier produced in this process passes its electrons along the ETC on the inner mitochondrial membrane?

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Multiple Choice

Which carrier produced in this process passes its electrons along the ETC on the inner mitochondrial membrane?

Explanation:
NADH is the carrier that passes electrons to the electron transport chain on the inner mitochondrial membrane. In the citric acid cycle, NADH is produced and then donates its electrons to Complex I of the chain, kickstarting the proton-pumping workflow that powers ATP synthesis. While FADH2 also contributes electrons, it feeds into the chain at Complex II and doesn’t drive proton pumping to the same extent, so the primary driving carrier produced in this process is NADH. NAD+ and FAD+ are the oxidized forms and do not donate electrons.

NADH is the carrier that passes electrons to the electron transport chain on the inner mitochondrial membrane. In the citric acid cycle, NADH is produced and then donates its electrons to Complex I of the chain, kickstarting the proton-pumping workflow that powers ATP synthesis. While FADH2 also contributes electrons, it feeds into the chain at Complex II and doesn’t drive proton pumping to the same extent, so the primary driving carrier produced in this process is NADH. NAD+ and FAD+ are the oxidized forms and do not donate electrons.

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