Metabolism
From The Art and Popular Culture Encyclopedia
![The Canard Digérateur, or Digesting Duck, was an automaton in the form of duck, created by Jacques de Vaucanson in 1739. Voltaire wrote that "without [...] the duck of Vaucanson, you have nothing to remind you of the glory of France." ("Sans...le canard de Vaucanson vous n'auriez rien qui fit ressouvenir de la gloire de la France.") This is often misquoted as "Without the shitting duck, we would have nothing to remind us of the glory of France."](/Image:Duck_of_Vaucanson.jpg)
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Metabolism (from Greek μεταβολισμός (metabolismós), "outthrow") is the set of chemical reactions that happen in living organisms to maintain life. These processes allow organisms to grow and reproduce, maintain their structures, and respond to their environments. Metabolism is usually divided into two categories. Catabolism breaks down organic matter, for example to harvest energy in cellular respiration. Anabolism uses energy to construct components of cells such as proteins and nucleic acids.
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See also
- Anthropogenic metabolism
- Basal metabolic rate
- Calorimetry
- Inborn error of metabolism
- Iron-sulfur world theory, a "metabolism first" theory of the origin of life.
- Respirometry
- Thermic effect of food
- Water metabolism
- Sulphur metabolism
- Antimetabolite
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