Metabolism of Elements in an Animal | Zoology

Metabolism is the sum total of the various chemical processes by which food is utilised by a living organism to provide energy, growth sub­stances and cell repair. Metabolism has two parts: (i) Degradation of absorbed food substances into smaller molecules, i.e. catabolism, and (ii) The biosynthesis of com­plex molecules from simpler components, i.e., anabolism. Catabolic reactions are exothermic, and anabolic [...]