That acid is needed to activate the protein-digesting enzyme called:
ALipase
BMaltase
CAmylase
DPepsin
Answer & Solution
Correct answer: D. Pepsin
1. Proteins are its substrate.
2. It works in the stomach.
3. It is pepsin.
_Source: OpenStax Anatomy and Physiology 2e, Chapter 23, The Digestive System._
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