What are the functions of lysosomes?

Explanation

### Step-by-Step Solution:

1. **Definition of Lysosomes**:
- Lysosomes are membrane-bound organelles found in the cytoplasm of eukaryotic cells. They are often referred to as "digestive bags" due to their role in breaking down waste materials and cellular debris.

2. **Extracellular Digestion**:
- One of the primary functions of lysosomes is to facilitate extracellular digestion. The enzymes contained within lysosomes can be released outside the cell to break down extracellular materials. This process helps in the degradation of substances that are outside the cell.

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