biological process metabolic process single-organism metabolic process metabolism resulting in cell growth http://purl.obolibrary.org/obo/go.owl metabolism multicellular organism metabolic process metabolic process resulting in cell growth The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.