What Happens in an Electron Transport Chain

Multiple Choice

What happens in an electron transport chain?

A) Electrons move from a low energy level to a higher energy level.
B) Electron movement generates energy which can be harvested.
C) Electrons combine with hydrogen ions to generate electron carriers, like NADH.
D) Energy is consumed.
E) The energy generated is used to break down coenzymes like NADH and ATP.