The chemical reactions and pathways resulting in the formation of precursor metabolites, substances from which energy is derived, and any process involved in the liberation of energy from these substances.

The chemical reactions and pathways resulting in the breakdown of leucine, 2-amino-4-methylpentanoic acid.

The chemical reactions and pathways resulting in the breakdown of any isoprenoid compound, isoprene (2-methylbuta-1,3-diene) or compounds containing or derived from linked isoprene (3-methyl-2-butenylene) residues.

The chemical reactions and pathways resulting in the breakdown of terpenes, any of a large group of hydrocarbons made up of isoprene units.

The chemical reactions and pathways resulting in the breakdown of glyoxylate, the anion of glyoxylic acid, HOC-COOH.

The pathway that converts acetate, in the form of acetyl-CoA, to farnesyl diphosphate (FPP) through a series of mevalonate intermediates. Farnesyl diphosphate is an important substrate for other essential pathways, such as biosynthesis of sterols.

An autotrophic carbon dioxide fixation pathway by which two molecules of carbon dioxide are fixed to form glyoxylate. Acetyl coenzyme A (acetyl-CoA) is assumed to be converted to malate, and two CO2 molecules are thereby fixed. Malyl-CoA is thought to be cleaved to acetyl-CoA, the starting molecule, and glyoxylate, the carbon fixation product.