Which of one matches with protein digestion

Options

A. Lipase,secretin,erepsin,casein
B. pepsin,lactase,casein,erepsin
C. Erepsin,amylase,pepsin
D. Erepsin,trysin,pepsin,rennin

Answer

To determine which option matches with protein digestion, we will analyze each of the provided choices step by step.

### Step 1: Identify the Enzymes Related to Protein Digestion
Protein digestion primarily involves specific enzymes that break down proteins into smaller peptides and amino acids. The main enzymes involved in protein digestion are:
- Pepsin: Secreted in the stomach, it begins the process of protein digestion.
- Trypsin: Secreted by the pancreas into the small intestine, it continues the digestion of proteins.
- Erepsin: Also found in the small intestine, it further breaks down peptides into amino acids.

### Step 2: Evaluate Each Option
1. **Lipase**: This enzyme is responsible for the digestion of fats, not proteins. Therefore, it does not match with protein digestion.

2. **Lactase**: This enzyme breaks down lactose (a sugar found in milk) and is not involved in protein digestion. Thus, it is not the correct answer.

3. **Amylase**: This enzyme is responsible for the digestion of carbohydrates. It does not play a role in protein digestion, making this option incorrect.

4. **Erepsin, Trypsin, Pepsin, Renin**:
- **Erepsin**: Involved in the final stages of protein digestion in the small intestine.
- **Trypsin**: A pancreatic enzyme that continues protein digestion in the small intestine.
- **Pepsin**: Initiates protein digestion in the stomach.
- **Renin**: Involved in milk protein digestion in infants.

Since all these enzymes (Erepsin, Trypsin, Pepsin) are directly involved in protein digestion, this option is correct.

### Conclusion
The correct answer that matches with protein digestion is **option number 4: Erepsin, Trypsin, Pepsin, Renin**.

---