HISTOLOGY
DIGESTIVE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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amylase
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Hydrochloric acid
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Sodium bicarbonate
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bile
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Detailed explanation-1: -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-2: -Hydrochloric acid secreted from gastric parietal cells generates the strongly acidic environment of the gastric lumen (pH <2) (305), which kills food-derived bacteria, facilitates food digestion, and promotes absorption of minerals including phosphate, calcium, and iron.
Detailed explanation-3: -Your stomach lining also secretes hydrochloric acid, which creates the ideal conditions for the protein-digesting enzymes to work. The potent hydrochloric acid kills bacteria, protecting your body from harmful microbes which can enter your body in food.