zymogen

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Related to zymogen cells: proenzyme, Chief cells, Parietal cells

zymogen

 [zi´mo-jen]
an inactive precursor that is converted into an active enzyme by action of an acid or another enzyme or by other means; a proenzyme. adj., adj zymogen´ic.

pro·en·zyme

(prō-en'zīm),
The precursor of an enzyme, requiring some change (usually the hydrolysis of an inhibiting fragment that masks an active grouping) to render it active; for example, pepsinogen, trypsinogen, profibrolysin.
Synonym(s): zymogen

zymogen

(zī′mə-jən)
n.

pro·en·zyme

(prō-en'zīm)
The precursor of an enzyme, requiring some change (usually the hydrolysis of an inhibiting fragment that masks an active grouping) to render it active, e.g., pepsinogen, trypsinogen, profibrinolysin.
Synonym(s): zymogen.

zymogen

The inactive protein precursor of an ENZYME.

zymogen

an inactive precursor of an enzyme, particularly those concerned with protein digestion, for example, PEPSINOGEN and TRYPSINOGEN. Zymogens require ACTIVATION ENERGY to become functional.