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Metabolism

 
     
  In the life sciences, the term metabolism (Greek, ‘process of change’) refers collectively to all the chemical processes which occur within a living organism. Prior to the 19th century little was known about the functions associated with life, though philosophers had speculated since the time of the ancient Greeks. Justus von Liebig (1803 - 1873) listed input and excretion, but knew nothing of the processes between; since then, the gaps have been filled quite substantialy for a number of organisms, including man. RB

See also biochemistry; cytology; endocrinology; homeostasis; physiology.
 
 

 

 

 
 
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