Which of the following statements concerning the electron-transport chain is true?

A) Hydrogen ions are pumped across the plasma membrane.
B) Electrons pass from one electron carrier to another in the electron transport chain.
C) Water serves as the final electron acceptor.
D) Chemiosmosis forms carbon dioxide.
E) The chemiosmosis model refers to movement of water.

Electrons

Negatively charged subatomic particles that orbit the nucleus of an atom.

Electron-Transport Chain

A chain of molecular structures that move electrons from donors to acceptors through oxidation-reduction reactions, while simultaneously moving protons (H+ ions) across a membrane.

Hydrogen Ions

Positively charged ions (protons) of hydrogen, H+, which play a significant role in acid-base balance and cellular metabolism.