MEDICAL
RECTUM AND ANUS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The class of food that can only be digested in the stomach in the presence of hydrochloric acid is
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carbohydrate
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fiber
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vitamin
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protein
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Explanation:
Detailed explanation-1: -Parietal cells within the stomach lining secrete hydrochloric acid that lowers the pH of the stomach. A low pH (1.5 to 2) activates pepsin. Acetylcholine, gastrin, and histamine stimulate the proton pump in parietal cells to release hydrogen ions and decrease pH.
Detailed explanation-2: -The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria.
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