Which of the following converts peptones, proteoses and proteins into dipeptides ?

Options

A. Amylase
B. Trypsin
C. Lipase
D. Remin

Answer

To determine which enzyme converts peptones, proteoses, and proteins into dipeptides, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: We need to identify which enzyme from the given options is responsible for converting peptones, proteoses, and proteins into dipeptides.

2. **Identify the Enzymes**: The options given are:
- A. Amylase
- B. Trypsin
- C. Lipase
- D. Renin

3. **Know the Function of Each Enzyme**:
- **Amylase**: This enzyme is responsible for breaking down carbohydrates into simpler sugars. It does not act on proteins.
- **Trypsin**: This is a proteolytic enzyme that breaks down proteins into smaller peptides, including dipeptides.
- **Lipase**: This enzyme is involved in the digestion of fats and does not act on proteins.
- **Renin**: This enzyme is primarily involved in the digestion of milk proteins in infants but is not the main enzyme for converting peptones and proteoses into dipeptides.

4. **Focus on Trypsin**: Trypsin is produced in the pancreas and is activated from its inactive form, trypsinogen, by the enzyme enterokinase. Once activated, trypsin works alongside other enzymes like chymotrypsin and carboxypeptidase to break down proteins, peptones, and proteoses into dipeptides.

5. **Conclusion**: Based on the functions of the enzymes, the correct answer is **B. Trypsin**, as it specifically converts peptones, proteoses, and proteins into dipeptides.

### Final Answer:
**B. Trypsin**