A process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors.
energy derivation by oxidation of organic compounds +
energy derivation by oxidation of reduced inorganic compounds +
ethanol oxidation
glucose catabolic process to pyruvate utilizing ADP
ketone body metabolic process +
NADPH regeneration +
pentose-phosphate shunt, non-oxidative branch
photosynthesis, light harvesting +
photosynthesis, light reaction +
regulation of generation of precursor metabolites and energy +