Question : Hydrochloric acid is secreted by the cells lining the
Option 1: Oral cavity
Option 2: Stomach
Option 3: Ileum
Option 4: Colon
Correct Answer: Stomach
Solution : The correct answer is Stomach.
Stomach has a pH value between 1.5 - 3. It is because of the hydrochloric acid released by the parietal cells of the lining of stomach. Gastric juice release from the stomach activates the parietal cells of the stomach to release hydrochloric acid. Hydrochloric acid helps to break bigger bolus particle into smaller assimilable particles. It also kills the infectious bacteria and fungi present in the food particles and protects the digestive system from any disease.
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