what are succus entericus
what are the inactive precursors present in it
Answers
Answer:
succus entericus The alkaline secretion produced by glands in the wall of the duodenum, consisting of water, mucoproteins, and hydrogencarbonate ions. It helps to counteract the highly acidic and proteolytic chyme entering the small intestine from the stomach, and thus protects the duodenum from damage. It was formerly believed to contain digestive enzymes, but duodenal enzymes are now known to be confined to cells of the brush border.
An inactive precursor of an enzyme, particularly those concerned with protein digestion, for example, PEPSINOGEN and TRYPSINOGEN. Zymogens require ACTIVATION ENERGY to become functional. an inactive precursor that is converted into an active enzyme by action of an acid or another enzyme or by other means; a proenzyme.
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