KEY TERMS

oxidative phosphorylation

electron-transport chain

proton-motive force

cellular respiration

reduction (redox, oxidation–reduction, E'0) potential

coenzyme Q (Q, ubiquinone)

Q pool

iron–sulfur (nonheme iron) protein

NADH-Q oxidoreductase (Complex I)

flavin mononucleotide (FMN)

succinate-Q reductase (Complex II)

cytochrome c (Cyt c)

Q-cytochrome c oxidoreductase (Complex III)

Rieske center

Q cycle

cytochrome c oxidase (Complex IV)

superoxide dismutase

catalase

ATP synthase (Complex V, F1F0 ATPase)

glycerol 3-phosphate shuttle

malate–aspartate shuttle

ATP-ADP translocase (adenine nucleotide translocase, ANT)

respiratory (acceptor) control

uncoupling protein (UCP)

programmed cell death (apoptosis)

mitochondrial outer membrane permeabilization (MOMP)

apoptosome

caspase