Optimum pH for enzyme trypsin is

Options

A. 5.9
B. 4.6
C. 8.5
D. 7

Answer

To determine the optimum pH for the enzyme trypsin, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Source of Trypsin**:
- Trypsin is secreted by the pancreas.

2. **Understand the Activation of Trypsin**:
- It is initially secreted in an inactive form called trypsinogen.
- Trypsinogen is activated to trypsin in the duodenum by the enzyme enterokinase.

3. **Location of Action**:
- Trypsin acts in the duodenum, which is the first part of the small intestine.

4. **Consider the pH of the Stomach**:
- The stomach has an acidic pH, which is not suitable for trypsin activity.

5. **Determine the pH of the Small Intestine**:
- The small intestine has a more alkaline (basic) pH, which is conducive for the action of trypsin.

6. **Evaluate the Given Options**:
- The options provided are: 5.9, 4.6, 8.5, and 7.
- The pH values 5.9 and 4.6 are acidic, which are not suitable for trypsin.
- The pH of 7 is neutral, but not optimal for trypsin activity.
- The pH of 8.5 is basic and is the only suitable option for trypsin activity.

7. **Conclusion**:
- Therefore, the optimum pH for the enzyme trypsin is **8.5**.