Question

Which are the components in the digestive juices that destroy the germs which enter the digestive tract through food? [A] Lysozyme,Trypsin. [B] Pepsin,Hydrochloric acid. [C] Lysozyme,Hydrochloric acid. [D] Pepsin,Trypsin​

Answer 1

Answer:

(B)Pepsin, HCl

Explanation:

Hydrochloric acid converts pepsinogen into pepsin and breaks various nutrients apart from the food you eat. It also kills bacteria that comes along with your food.

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Answer 2

The correct answer is- option[A] Pepsin, Hydrochloric acid.

• Content of gastric juice involves Hydrochloric acid, pepsin, and lipase.
• It plays a major role in neutralizing microorganisms and inhibiting infectious agents from reaching the intestine.
• Hydrochloric acid or gastric acid is secreted into the lumen of the stomach by the parietal cells of the stomach.
• Hydrochloric acid activates pepsinogen secreted by chief cells to pepsin
• Pepsin is a proteolytic enzyme that causes the digestion of protein in the stomach.
• Hydrochloric acid also inhibits the growth of various microorganisms to prevent infection.
• In diseases such as achlorhydria and hypochlorhydria where there is low or no gastric acid which causes the disinfectant properties of hydrochloric acid to decrease causing a greater risk of developing infections of the digestive tract.
• Gastric juice is the first line of defense against infection throughout the G.I tract
• Lysozyme is an enzyme that is present in the saliva and the mouth but is absent in the stomach.
• Trypsin is also a proteolytic enzyme that aids in the digestion of protein in the small intestine. It is not a part of gastric juice.

Hence the components in the digestive juices that destroy the germs which enter the digestive tract through food are option [B] pepsin and hydrochloric acid.

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