A series of chemical components, starting with glucose, each successively oxidized in aerobic respiration to release energy and synthesize ATP by the stepwise transfer of electrons to their ultimate acceptor, oxygen reduced to water. The process involves three large multiprotein complexes flavoproteins, cytochromes and other metaloproteins. with the smaller components of ubiquinone also coenzyme Q and cytochrome c. See panel on Mitochondrion,

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