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The chemical processes occurring within a living cell or organism that are necessary for the maintenance of life
1. • The chemical processes occurring within a living cell or organism that are necessary for the
maintenance of life. In metabolism some substances are broken down to yield energy for vital
processes while other substances, necessary for life, are synthesized.
• The processing of a specific substance within the living body: water metabolism; iodine
metabolism
The synthesis of complex molecules in living organisms from simpler ones together with the storage
of energy; constructive metabolism
The breakdown of complex molecules in living organisms to form simpler ones, together with the
release of energy; destructive metabolism