Which of the following enzymes is found in pancreatic juice ?

Options

A. Nuclease
B. Enterokinase
C. Aminopeptidase
D. Dipeptidase

Answer

To determine which enzyme is found in pancreatic juice, we can analyze the options provided:

1. **Nuclease**: This enzyme is indeed produced by the acinar cells of the pancreas. It is responsible for digesting nucleic acids (DNA and RNA) that are present in the food we consume. Therefore, nuclease is found in pancreatic juice.

2. **Enterokinase**: This enzyme is not produced by the pancreas; instead, it is secreted by the mucosa of the duodenum (the first part of the small intestine). Its primary function is to activate trypsinogen into trypsin, which is important for protein digestion, but it is not a component of pancreatic juice.

3. **Aminopeptidase**: This enzyme is secreted by the small intestine and is involved in protein digestion by breaking down peptides into amino acids. However, it is not produced by the pancreas and thus is not found in pancreatic juice.

4. **Dipeptidase**: Similar to aminopeptidase, dipeptidase is also found in the small intestine and is responsible for breaking down dipeptides into amino acids. It is not secreted by the pancreas.

Based on this analysis, the correct answer is **Nuclease**, as it is the only enzyme listed that is found in pancreatic juice.

### Step-by-Step Solution:
1. Identify the enzymes listed in the options.
2. Determine the origin of each enzyme:
- Nuclease: Produced by the pancreas.
- Enterokinase: Secreted by the duodenal mucosa.
- Aminopeptidase: Secreted by the small intestine.
- Dipeptidase: Found in the small intestine.
3. Conclude that the only enzyme produced by the pancreas and found in pancreatic juice is **Nuclease**.