Digestion of foreign particles within the cell by lysosomes is called

Options

A. Autolysis
B. Autophagy
C. Phagocytosis
D. Heterophagy

Answer

To answer the question "Digestion of foreign particles within the cell by lysosomes is called," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Role of Lysosomes**:
- Lysosomes are membrane-bound organelles that contain digestive enzymes. Their primary function is to break down waste materials and cellular debris.

2. **Identify the Processes Related to Digestion**:
- There are several processes that involve the digestion of materials within cells, including:
- **Autolysis**: This is the process where a cell self-destructs using its own enzymes.
- **Autophagy**: This refers to the removal of damaged or unnecessary cellular components.
- **Phagocytosis**: This is the process of engulfing larger particles or cells, typically by immune cells.
- **Heterophagy**: This is the digestion of foreign particles that enter the cell, specifically by lysosomes.

3. **Focus on the Correct Definition**:
- The question specifically asks about the digestion of foreign particles within the cell by lysosomes.
- Among the definitions provided, **heterophagy** is the term that specifically refers to the lysosomal digestion of foreign particles.

4. **Conclusion**:
- Therefore, the correct answer to the question is **heterophagy**.

### Final Answer:
The digestion of foreign particles within the cell by lysosomes is called **heterophagy**.

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