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The acid present in the stomach:
(a) kills the harmful bacteria that may enter along with the food.
(b) protects the stomach lining from harmful substances.
(c) digests starch into simpler sugars.
(d) makes the medium alkaline.
Correct Answer: (a) kills the harmful bacteria that may enter along with the food.
Explanation:
The gastric gland, which is located in the stomach's wall, secretes gastric juice.
There are three components in gastric juice.
This includes hydrochloric acid, pepsin, and mucus.
Hydrochloric acid's primary purpose in food is to destroy microorganisms that may enter the stomach with food. It also contributes to the formation of the acidic environment or pH level essential for the activation of dormant pepsinogen.
Pepsin is a digestive enzyme that breaks down proteins in meals into smaller molecules. Pepsin facilitates protein breakdown into amino acids.
Mucus helps protect the inner lining of the stomach from its own hydrochloric acid discharges. It aids in protecting the stomach wall from hydrochloric acid's corrosive effects.
If the gastric glands do not secrete mucus, the gas will harm the inside lining of the stomach and cause stomach ulcers.
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