Where do the protons and electrons come from that are used in the electron transport chain? A) ATP B) NADH C) FADH₂ D) ADP E) NADH and FADH₂

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The electron transport chain located in the cristae of mitochondria is a series of carriers that pass electrons from one to the other. NADH and FADH₂ deliver electrons to the chain; the H atoms attached to the NADH and FADH₂ consist of an e- and a hydrogen ion.

Where Do the Protons and Electrons Come from That Are