Succus entericus does not contain:

Options

A. Dipeptidase
B. Sucrase
C. Nuclease
D. Lipase

Answer

To solve the question "Succus entericus does not contain:", we need to understand what succus entericus is and what enzymes are typically found in it.

### Step-by-Step Solution:

1. **Define Succus Entericus**: Succus entericus is also known as intestinal juice. It is secreted by the intestinal glands and plays a crucial role in the digestion of food in the small intestine.

2. **Identify Components of Succus Entericus**: This intestinal juice contains various digestive enzymes that help in breaking down different types of biomolecules. The main enzymes present in succus entericus include:
- **Dipeptidase**: Breaks down dipeptides into amino acids.
- **Sucrase**: Converts disaccharides (like sucrose) into monosaccharides (like glucose).
- **Lipase**: Aids in the digestion of fats.

3. **Determine What is NOT Present**: The question specifically asks for what is not contained in succus entericus. One of the key enzymes that is not part of succus entericus is **Nuclease**. Nuclease is an enzyme that breaks down nucleic acids (DNA and RNA) and is primarily found in pancreatic juice, not in intestinal juice.

4. **Conclusion**: Based on the above analysis, the answer to the question "Succus entericus does not contain:" is **Nuclease**.

### Final Answer:
Succus entericus does not contain **Nuclease**.

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