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catabolism    
n. 异化作用,分解代谢

异化作用,分解代谢

catabolism
n 1: breakdown in living organisms of more complex substances
into simpler ones together with release of energy [synonym:
{catabolism}, {katabolism}, {dissimilation}, {destructive
metabolism}] [ant: {anabolism}, {constructive metabolism}]

Metabolism \Me*tab"o*lism\, n. (Physiol.)
1. 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 enzymes. Hence, metabolism may be either
constructive ({anabolism}), or destructive ({catabolism}).
[1913 Webster]

2. (Biol.) The series of chemical changes which take place in
an organism, by means of which food is manufactured and
utilized and waste materials are eliminated.
[Webster 1913 Suppl.]


Disassimilation \Dis`as*sim`i*la"tion\, n. (Physics)
The decomposition of complex substances, within the organism,
into simpler ones suitable only for excretion, with evolution
of energy, -- a normal nutritional process the reverse of
assimilation; downward metabolism; -- now more commonly
called {catabolism}.
[1913 Webster PJC]

The breaking down of already existing chemical
compounds into simpler ones, sometimes called
disassimilation. --Martin.
[1913 Webster]


catabolism \catabolism\ n.
the breakdown of more complex substances into simpler ones
with release of energy, in living organisms; destructive or
downward metabolism; -- a form of metabolism, opposed to
{anabolism}. See also {Disassimilation}. [Formerly spelled
{katabolism}.]

Syn: katabolism, dissimilation, destructive metabolism.
[WordNet 1.5]


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  • Catabolism | Definition Metabolism | Britannica
    Catabolism, the sequences of enzyme-catalyzed reactions by which relatively large molecules in living cells are broken down, or degraded Energy is released in three phases, the last of which is the tricarboxylic acid (or Krebs) cycle Learn more about the reactions and products of catabolism
  • Catabolism vs. Anabolism: What’s the Difference?
    Anabolism and catabolism are key parts of your overall metabolism Learn the difference between the two and how they affect your health
  • Catabolism - Definition and Examples - Biology Dictionary
    Catabolism is the part of the metabolism responsible for breaking complex molecules down into smaller molecules The other part of the metabolism, anabolism, builds simple molecules into more complex ones
  • Anabolism and Catabolism - Definitions and Differences
    Catabolism is the part of metabolism that breaks large molecules into smaller ones Catabolism yields energy that fuels anabolism Metabolism consists of two sets of biochemical pathways called anabolism and catabolism
  • Catabolism - Definition, Types, Example, Stages, Causes More
    Catabolism is the body’s process of breaking down molecules to release and produce energy What are the 5 Examples of Catabolism? Examples include glycogen breakdown, protein degradation, lipid oxidation, cellular respiration, and digestive processes
  • What is Catabolism? - BYJUS
    Catabolism is the breakdown of complex substances to their constituent parts (glucose, amino acids and fatty acids) which form substrates for metabolic pathways Metabolism comprises two major parts; one is anabolism and the other catabolism
  • Catabolism - Chemistry LibreTexts
    Catabolism is the biochemical processes of metabolism by which molecules are broken down Often catabolism is an oxidative process in which carbons have hydrogen atoms removed CO 2 is the most oxidized form of carbon NADH is the primary electron acceptor for catabolic reactions
  • Catabolism Definition and Examples - Biology Online Dictionary
    Catabolism is the branch of the metabolic process that breaks down complex, big molecules into smaller ones, yielding energy It is the destructive branch of the metabolism that results in the release of energy Each living cell depends on energy for its existence
  • 5. 3A: Types of Catabolism - Biology LibreTexts
    Catabolism is the set of metabolic processes that break down large molecules These include breaking down and oxidizing food molecules The purpose of catabolic reactions is to provide the energy and components needed by anabolic reactions





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