Which are all preteolytic enzymes

Options

A. Ptyalin,trypsin,Pepsin
B. Lipase,erepsin,trypsin
C. Erepsin,trypsin,Pepsin
D. Pepsin,nuclease,nucleotidase

Answer

**Step-by-Step Solution:**

1. **Understanding Proteolytic Enzymes:**
Proteolytic enzymes, also known as proteases, are enzymes that break down proteins into smaller peptides or amino acids. They play a crucial role in digestion.

2. **Identifying Examples of Proteolytic Enzymes:**
Common examples of proteolytic enzymes include:
- **Trypsin:** A serine protease produced in the pancreas that catalyzes the hydrolysis of peptide bonds.
- **Erypsin (or Enterokinase):** Found in intestinal juices, it digests peptones into amino acids.
- **Pepsin:** An enzyme present in the stomach that degrades food proteins into peptides.

3. **Analyzing the Given Options:**
- **Option 1:** Tylene, trypsin, pepsin - Incorrect because Tylene is not a proteolytic enzyme.
- **Option 2:** Lipase, irepsin, trypsin - Incorrect because lipase is not a proteolytic enzyme.
- **Option 3:** Irepsin, trypsin, and pepsin - Correct as all three are proteolytic enzymes.
- **Option 4:** Pepsin, nuclease, and nucleotide - Incorrect because nuclease and nucleotide are not proteolytic enzymes.

4. **Conclusion:**
The correct answer is **Option 3: Irepsin, Trypsin, and Pepsin** as they are all proteolytic enzymes.

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