Lysosomes are so-called as they have

Options

A. hydrolytic enzymes
B. Oxidizing enzymes
C. respiratory enzymes
D. carboxylating enzymes

Answer

### Step-by-Step Solution:

1. **Understanding Lysosomes**:
- Lysosomes are membrane-bound organelles found in eukaryotic cells. They play a crucial role in cellular digestion and waste removal.

2. **Function of Lysosomes**:
- The primary function of lysosomes is to break down biomolecules. They are involved in the degradation of various macromolecules such as proteins, nucleic acids, carbohydrates, and lipids.

3. **Enzymatic Activity**:
- Lysosomes contain specific enzymes known as hydrolytic enzymes or digestive enzymes. These enzymes are responsible for catalyzing the breakdown of complex molecules into simpler ones.

4. **Types of Substrates**:
- The substrates that lysosomes act upon include:
- Excess or worn-out organelles (cellular components).
- Food particles that have been engulfed by the cell.
- Pathogens such as bacteria and viruses that the cell has internalized.
- Macro molecules that need to be degraded for recycling within the cell.

5. **Autolysis**:
- In certain circumstances, lysosomes can also digest their own cellular components, leading to a process called autolysis, which can result in cell death.

6. **Conclusion**:
- Given the above information, lysosomes are called lysosomes because they contain hydrolytic enzymes that facilitate the digestion of various biomolecules.

### Final Answer:
- Lysosomes are so-called because they contain **hydrolytic enzymes**.

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