The process involving a set of chemical reactions that modifies a molecule into another for storage, or for immediate use in another reaction or as a by product.
Metabolism includes processes for cell growth, reproduction, response to environment, survival mechanisms, sustenance, and maintenance of cell structure and integrity. It is made up of two categories: catabolism and anabolism.
Word origin: From Greek metabolē, change, from metaballein, to change : meta-, meta- + ballein, to throw.
Related terms: basal metabolism, carbohydrate metabolism, constructive metabolism, destructive metabolism, fat metabolism, inborn error of metabolism, inborn errors of metabolism, oxidative metabolism.
See also: anabolism, catabolism.