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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 3.0 to 5.0
- pH 2.0 to 3.0 (correct)
- pH above 5.0
- 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 break down carbohydrates
- To absorb nutrients
- To neutralize stomach contents
- To activate pepsinogen into pepsin (correct)
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 2.0 to 3.0
- pH above 5.0
- pH 0.8 (correct)
- pH 5.0
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