The enzyme which cleaves proteins is:

Options

A. Protease
B. Rnase
C. Lipase
D. Dnase

Explanation

To solve the question "The enzyme which cleaves proteins is:", we will follow these steps:

### Step 1: Understand the Question
The question is asking for the specific type of enzyme that is responsible for cleaving or breaking down proteins.

### Step 2: Identify the Options
The options provided are:
1. Protein
2. RNA
3. Lipid
4. DNA

### Step 3: Analyze Each Option
- **Protein**: This is a macromolecule made up of amino acids. It does not cleave proteins; rather, it is the subject of cleavage.
- **RNA**: This is a nucleic acid involved in protein synthesis and does not cleave proteins.
- **Lipid**: This refers to fats and oils, and lipases are enzymes that break down lipids, not proteins.
- **DNA**: This is another type of nucleic acid that is involved in genetic information storage and does not cleave proteins.

### Step 4: Identify the Correct Enzyme
The enzyme that cleaves proteins is called a **protease** or **peptidase**. These enzymes break down proteins into smaller peptides or amino acids.

### Step 5: Conclusion
Based on the analysis, the correct answer to the question is that the enzyme which cleaves proteins is a **protease**.

### Final Answer
The enzyme which cleaves proteins is **protease**.

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