<unk>  is the biochemical reaction that uses<unk>  to form acetyl-CoA, releasing reducing equivalents and carbon dioxide.<unk> , which links the metabolic pathways glycolysis and the citric acid cycle, is referred to as "the transition reaction," "the link reaction," or "the oxidative<unk>  reaction." This reaction is usually catalyzed by the<unk>  dehydrogenase complex as part of aerobic respiration. In eukaryotes,<unk>  takes place exclusively inside mitochondria; in prokaryotes similar reactions take place in the cytoplasm and at the plasma membrane.
The oxidative<unk>  of<unk>  in anaerobic organisms differs from the aerobic process in that the electron acceptor is an iron-sulfur protein, not NAD+.  The conversion is catalyzed by a thiamine-dependent enzyme that also acylates coenzyme A.  The reducing equivalents are disposed of by the production of H2 via hydrogenase.
Pyruvate decarboxylation
Chiral pool synthesis
Beta oxidation
Oxidative phosphorylation
Biotinylation
Glucuronidation
Glycolysis
Arndt-Eistert synthesis