Acetogenesis is energy metabolism in which acetate is produced from either H₂ and CO₂ or from organic compounds

The acetyl CoA pathway is a wide distributed pathway in oligate anaerobes that converts hydrogen gas and carbon dioxide into acetate or orxidizes acetate to carbon dioxide

Denitrification is anaerobic respiration in which nitrate or nitrite is reduced to a form of nitrogen gas, primarily diatomic nitrogen

Fermentation is anaerobic catabolism of an organic compound in which the compound serves as both an electron donor and an electron acceptor and in which ATP is usually produced by substrate-level phosphorylation

The glyoxylate cycle is a series of reactions including some citric acid cycle reactions that are used for aerobic growth on bi or tricarbonic organic acids

A methylotroph is an organism capable of growth on compounds containing no C-C bonds; some methylotrophs are also methanotrophic

Oxygenase is an enzyme that catalyzes the incorporation of oxygen from oxygen gas into organic or inorganic compounds

The pentose phosphate pathway is a major metabolic pathway for the production and catabolism of pentoses (sugars with five carbons)

Reductive dechlornation is an anaerobic respiration form in which a chlorinated organic compound is used as an electron acceptor which releases its chlorine ion to create energy needed for phosphorylation

The ribose monophosphate pathway is a reaction series in certain methylotrophs in which formaldehyde is assimilated into cellular material using ribulose monophophate as the primary carbon acceptor molecule

The serine pathway is a reactio nseries in certain methylotrophs in which formaldehyde and carbon dioxide is assimilated into cellular material by way of the amino acid serine

A stickland reaction is the fermentation of an amino acid pair