Each time an electron is passed between the molecules of the electron transport chain,
A) energy is released.
B) oxygen accepts the electrons.
C) an ATP molecule is produced.
D) energy is gained.
E) carbon dioxide is produced.

Question

Quizplus · Accepted Answer

Energy is released each time an electron is passed between the molecules of the electron transport chain. This energy is used to pump protons across the mitochondrial membrane, creating a proton gradient that drives ATP synthesis.

Each Time an Electron Is Passed Between the Molecules of the Electron