Function of HCl in stomach is to

Options

A. Kill micro-organism of food
B. Facilitate absorption of food
C. Dissolve hormones secreted by gastric glands
D. Active trypsinogen to trypsin

Answer

### Step-by-Step Solution:

1. **Understanding the Role of HCl**: Hydrochloric acid (HCl) is secreted by the gastric glands in the stomach. Its primary role is to create an acidic environment.

2. **Killing Microorganisms**: One of the main functions of HCl is to kill harmful microorganisms that may enter the stomach with food. The acidic environment is hostile to many bacteria and pathogens.

3. **Pepsinogen Activation**: HCl converts the inactive enzyme pepsinogen into its active form, pepsin. This enzyme is crucial for protein digestion. However, it does not activate trypsinogen, which is activated in the alkaline environment of the small intestine.

4. **Absorption of Nutrients**: The absorption of nutrients primarily occurs in the small intestine, facilitated by villi and microvilli, not by HCl in the stomach.

5. **Dissolving Hormones**: HCl does not dissolve hormones secreted by gastric glands; rather, it aids in the digestion of food.

6. **Conclusion**: Based on the functions discussed, the correct answer to the question is that the function of HCl in the stomach is to kill microorganisms present in food.

### Final Answer:
The function of HCl in the stomach is to kill microorganisms in food.

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