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Questions and Answers
What is the optimal pH range for pepsin activity?
What is the optimal pH range for pepsin activity?
- pH above 5.0
- pH 3.0 to 5.0
- pH 2.0 to 3.0 (correct)
- pH 0.8 to 2.0
What is the main role of hydrochloric acid in the stomach?
What is the main role of hydrochloric acid in the stomach?
- To activate pepsinogen into pepsin (correct)
- To break down carbohydrates
- To neutralize stomach contents
- To absorb nutrients
What is the pH of hydrochloric acid when it is secreted by the parietal cells in the stomach?
What is the pH of hydrochloric acid when it is secreted by the parietal cells in the stomach?
- pH 5.0
- pH 2.0 to 3.0
- pH 0.8 (correct)
- pH above 5.0
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