Biological oxidation is the mechanism by which oxygen is supplied to living
organisms and energy is produced. These processes involve the participation of oxygen
incorporated into the substrates by oxidoreductase enzymes. The mechanisms of
reaction of enzymes involved in both oxidation-reduction processes and electron
transport chain mitochondrial-ETC, and their relationship with reactive oxygen species
(ROS) production, are presented here.
Keywords: Dehydrogenases, Hydroperoxidases, Mitochondrial Electron
Transport Chain-ETC, Oxidases, Oxidoreductases, Oxygenases, Redox potential,
ROS.