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Question
Higher Order Thinking Skill
If pepsin is lacking in gastric juice, then which event in the stomach will be affected?
Options
digestion of starch into sugars.
breaking of proteins into peptides.
digestion of nucleic acids.
breaking of fats into glycerol and fatty acids.
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Solution
b. Breaking of protein into peptides
Explanation:
The acid in the stomach causes food proteins to unfold in a process called denaturation. Denaturation exposes the protein's molecular bonds so that pepsin can access them and break the proteins into smaller fragments, called peptides or polypeptides.
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