Mark the right statement among the following

Options

A. Trypsinogen is an inactive enzyme
B. Trypsinogen is secreted by intestinal mucosa
C. Enterokinase is secreted by pancreas
D. Bile contains trypsin

Answer

### Step-by-Step Solution:

1. **Understanding Trypsinogen**:
- Trypsinogen is an enzyme that is secreted in an inactive form. It is produced by the pancreas.

2. **Activation of Trypsinogen**:
- Trypsinogen is activated to its active form, trypsin, by an enzyme called enterokinase. Enterokinase is secreted by the intestinal mucosa.

3. **Evaluating the Statements**:
- **Option 1**: "Trypsinogen is an inactive enzyme."
- This statement is correct because trypsinogen is indeed the inactive form of the enzyme.
- **Option 2**: "Trypsinogen is secreted by intestinal mucosa."
- This statement is incorrect because trypsinogen is secreted by the pancreas, not the intestinal mucosa.
- **Option 3**: "Enterokinase is secreted by pancreas."
- This statement is also incorrect because enterokinase is secreted by the intestinal mucosa, not the pancreas.
- **Option 4**: "Bile contains trypsin."
- This statement is incorrect because bile contains bile salts and pigments, but not trypsin.

4. **Conclusion**:
- The only correct statement among the options provided is **Option 1**: "Trypsinogen is an inactive enzyme."

### Final Answer:
The right statement is: **Trypsinogen is an inactive enzyme.**