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Question

Function of hydrochloric acid in the stomach is to

A
Digest carbohydrates
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B
Clean the stomach
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C
Kill the germs
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D
Break down proteins
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Solution

The correct option is C Kill the germs
The stomach wall consists gastric gland which secretes gastric juice for digestion of food. The gastric juice is made up of hydrochloric acid, pepsinogen and other digestive enzymes, gastrin, mucus, and bicarbonates. It has a pH ranging from 1 to 2. Its low pH is essential in activating many digestive enzymes and in destroying various pathogens. Thus, the correct answer is option C.

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