pepsin
pepsin — noun
1. a natural chemical made in your stomach that cuts the proteins you eat into shor
a natural chemical made in your stomach that cuts the proteins you eat into shorter chains, helping your body break down food
Naoko learned that pepsin works best in the acidic environment of the stomach.
pepsin + works best + acidic environment
The doctor explained how pepsin breaks down egg protein into smaller pieces.
pepsin breaks down [specific food protein]
Without enough pepsin, the Watanabe family found it hard to digest meat.
Kabir read that pepsin needs a strongly acidic setting to work properly.
Students in biology class watched pepsin turn solid egg white into liquid.
- protease
a broader category; pepsin is one specific type of protease that works in the stomach
- gastric enzyme
a more general term for any enzyme produced in the stomach
用法筆記
Pepsin is usually treated as an uncountable noun in general use (e.g., 'Pepsin helps digest protein'). In technical writing it may appear as a countable noun when referring to different types.