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•  Metabolism is the web of all the enzyme-catalysed reactions in a cell or organism

Metabolism describes the totality of chemical processes that occur within a living organism in order to maintain life

  • It is the web of all enzyme-catalysed reactions that occur within a cell or organism

Metabolic reactions
serve two key functions: 

  • They provide a source of energy for cellular processes (growth, reproduction, etc.) 
  • They enable the synthesis and assimilation of new materials for use within the cell

Summary of Key Metabolic Processes

metabolic processes (bold)