At which pH lysosomal enzymes remain active

Options

A. pH - 5
B. PH - 7
C. pH - 8
D. pH - 1.0

Answer

### Step-by-Step Solution:

1. **Understanding Lysosomes**:
- Lysosomes are membrane-bound organelles found in eukaryotic cells. They contain enzymes that are responsible for breaking down waste materials and cellular debris.

2. **Identifying the Enzymes**:
- The enzymes found in lysosomes are known as acid hydrolases. These enzymes are crucial for the digestion of various biomolecules, including proteins, lipids, carbohydrates, and nucleic acids.

3. **Function of Lysosomal Enzymes**:
- These enzymes help in the breakdown of excess organelles, food particles, and other waste materials within the cell. This process is essential for cellular maintenance and recycling.

4. **Optimal pH for Activity**:
- Enzymes typically have an optimal pH range at which they function most effectively. For lysosomal enzymes, this optimal pH is around 5.

5. **Conclusion**:
- Therefore, lysosomal enzymes remain active at a pH of approximately 5.

### Final Answer:
Lysosomal enzymes remain active at a pH of 5.

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