catabolism

(noun)

The destructive metabolism, usually including the release of energy and breakdown of materials.

Related Terms

  • circadian rhythms
  • anabolism

Examples of catabolism in the following topics:

  • Catabolic-Anabolic Steady State

    • Catabolic reactions that break complex molecules provide the energy needed by anabolic reactions to produce complex molecules.
    • Anabolism is the opposite of catabolism.
    • Catabolism is a "downhill" process where energy is released as the organism uses up energy.
    • Anabolism and catabolism must be regulated to avoid the two processes occurring simultaneously.
    • Catabolic hormones include adrenaline, cortisol and glucagon.
  • Absorptive State

    • When the gastrointestinal tract is full, anabolism exceeds catabolism; this is the absorptive state.
    • Absorptive state is the period in which the gastrointestinal tract is full and the anabolic processes exceed catabolism.
  • Mechanisms of Chemical Digestion

    • Digestion is a form of catabolism: a breakdown of large food molecules (i.e., polysaccharides, proteins, fats, nucleic acids) to smaller ones (i.e., monosaccharides, amino acids, fatty acids, nucleotides) .
    • A simplified outline of the catabolism of proteins, carbohydrates and fats
  • The Resistance Reaction

    • Resistance is the second stage and increased secretion of glucocorticoids play a major role, intensifying the systemic response—they have lypolytic, catabolic and antianabolic effects: increased glucose, fat and amino acid/protein concentration in blood.
  • Anabolic Steroids and Muscles

    • The effect of anabolic steroids on muscle mass is caused in at least two ways: first, they increase the production of proteins; second, they reduce recovery time by blocking the effects of the stress hormone cortisol on muscle tissue, so that catabolism of muscle is greatly reduced.
  • Digestion in the Mouth, Pharynx, and Esophagus

    • It is a form of catabolism: a breakdown of large food molecules into smaller ones.
  • Acidosis

    • Renal acidosis is associated with an accumulation of urea and creatinine as well as metabolic acid residues of protein catabolism.
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