Cells consist of many organelles, yet we do not call any of these organelles as structural and functional unit of living organisms. Explain.

Explanation

### Step-by-Step Solution:

1. **Understanding Organelles**:
- Cells are composed of various organelles, such as the nucleus, endoplasmic reticulum, Golgi bodies, and mitochondria. Each of these organelles has specific functions that are crucial for the cell's overall operation.

2. **Definition of a Cell**:
- A cell is considered the smallest structural and functional unit of living organisms. It is the basic building block that makes up all living things.

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