1 Pepsin is the main gastric enzyme. 2  It is produced by the stomach cells called chief cells in its inactive form pepsinogen, which is a zymogen. 3  Pepsinogen is then activated by the stomach acid into its active form, pepsin.igestive enzymes are enzymes that break down polymeric macromolecules into their smaller building blocks, in order to facilitate their absorption by the body.
Search form. Trending. The 10 best arcade games of ALL TIME. If you were alive and had access to coins at any time between the 1970s and the mid-1990s, chances are you'll have spent a bit of time in a video arcade, hammering buttons, frantically waggling a sweaty joystick and pumping a week's worth of pocket money into Wonder Boy.
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