ANIMAL PHYSIOLOGY
DIGESTION IN HUMANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following kills bacteria in the human alimentary canal?
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HCl in gastric juice
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mucus
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pancreatic juice
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saliva
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Explanation:
Detailed explanation-1: -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.
Detailed explanation-2: -Gastric juice is a unique combination of hydrochloric acid (HCl), lipase, and pepsin. Acidic gastric juice is found in all vertebrates, and its main function is to inactivate microorganisms.
Detailed explanation-3: -Gastric acid in the stomach kills most organisms that are swallowed.
Detailed explanation-4: -In our mouth, the enzyme lysozyme destroys germs in food, and in the stomach, HCl (hydrochloric acid) from gastric juice kills bacteria.
There is 1 question to complete.