Which of the following enzymes are found in matrix of peroxisomes :-

Options

A. NADH cytochrome reductase
B. Glyoxidases and malate dehydrogenase
C. Acid phosphatases and isocitric lysase
D. Catalases and oxidases

Answer

To determine which enzymes are found in the matrix of peroxisomes, we will analyze each option provided in the question step by step.

### Step 1: Analyze Option 1 - NADH Cytochrome Reductase
- **Explanation**: NADH cytochrome reductase is an enzyme involved in the electron transport chain, primarily located in the inner mitochondrial membrane, not in peroxisomes.
- **Conclusion**: This option is incorrect.

### Step 2: Analyze Option 2 - Glyoxydase
- **Explanation**: Glyoxydase is an enzyme that is typically associated with microorganisms, particularly fungi. It is not specifically found in the matrix of peroxisomes.
- **Conclusion**: This option is incorrect.

### Step 3: Analyze Option 3 - Malate Dehydrogenase
- **Explanation**: Malate dehydrogenase is an enzyme that is primarily found in the mitochondria, where it plays a role in the citric acid cycle. It is not found in the matrix of peroxisomes.
- **Conclusion**: This option is incorrect.

### Step 4: Analyze Option 4 - Catalases and Oxidases
- **Explanation**: Catalases and oxidases are enzymes that are indeed found in the matrix of peroxisomes. They are involved in oxidative reactions, including the breakdown of hydrogen peroxide, which is a byproduct of various metabolic processes.
- **Conclusion**: This option is correct.

### Final Answer
The correct answer is **Option 4: Catalases and Oxidases**.

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