Definitions for metabolismməˈtæb əˌlɪz əm

This page provides all possible meanings and translations of the word metabolism

Princeton's WordNetRate this definition:(0.00 / 0 votes)

  1. metamorphosis, metabolism(noun)

    the marked and rapid transformation of a larva into an adult that occurs in some animals

  2. metabolism, metabolic process(noun)

    the organic processes (in a cell or organism) that are necessary for life

WiktionaryRate this definition:(0.00 / 0 votes)

  1. metabolism(Noun)

    The complete set of chemical reactions that occur in living cells.

  2. Origin: From μεταβολή, from μετά + βάλλω.

Webster DictionaryRate this definition:(0.00 / 0 votes)

  1. Metabolism(noun)

    the act or process, by which living tissues or cells take up and convert into their own proper substance the nutritive material brought to them by the blood, or by which they transform their cell protoplasm into simpler substances, which are fitted either for excretion or for some special purpose, as in the manufacture of the digestive ferments. Hence, metabolism may be either constructive (anabolism), or destructive (katabolism)

FreebaseRate this definition:(0.00 / 0 votes)

  1. Metabolism

    Metabolism is the set of life-sustaining chemical transformations within the cells of living organisms. These enzyme-catalyzed reactions allow organisms to grow and reproduce, maintain their structures, and respond to their environments. The word metabolism can also refer to all chemical reactions that occur in living organisms, including digestion and the transport of substances into and between different cells, in which case the set of reactions within the cells is called intermediary metabolism or intermediate metabolism. 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. The chemical reactions of metabolism are organized into metabolic pathways, in which one chemical is transformed through a series of steps into another chemical, by a sequence of enzymes. Enzymes are crucial to metabolism because they allow organisms to drive desirable reactions that require energy and will not occur by themselves, by coupling them to spontaneous reactions that release energy. As enzymes act as catalysts they allow these reactions to proceed quickly and efficiently. Enzymes also allow the regulation of metabolic pathways in response to changes in the cell's environment or signals from other cells.

The Nuttall EncyclopediaRate this definition:(0.00 / 0 votes)

  1. Metabolism

    name given to a chemical change in the cells or tissues of living matter.

U.S. National Library of MedicineRate this definition:(0.00 / 0 votes)

  1. Metabolism

    The chemical reactions that occur within the cells, tissues, or an organism. These processes include both the biosynthesis (ANABOLISM) and the breakdown (CATABOLISM) of organic materials utilized by the living organism.


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