HISTOLOGY
DIGESTIVE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Pepsine and hydrochloric acid
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Saliva and bile
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Bile and hydrochloric acid
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Amyase and hydrochloric acid
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Detailed explanation-1: -Hydrochloric acid (HCl), another component of the gastric juice, plays a crucial role in creating the pH required for pepsin activity. Parietal cells produce HCl by secreting hydrogen and chloride ions. When pepsinogen and hydrochloric acid exist together in the gastric juice, pepsin takes its active form.
Detailed explanation-2: -Gastric juices secreted by the stomach have a pH of 1.8 due to HCL secreted into it. Gastric chief cells secretes inactive zymogen like pepsinogen, lipase, and renin. Pepsinogen gets activated in acidic pH and convert into active pepsin. Pepsin is a protein-digesting enzyme.
Detailed explanation-3: -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.