Cell is the basic unit of life. Discuss in brief.

Explanation

**Step-by-Step Text Solution:**

1. **Definition of Cell**: A cell is defined as the smallest structural and functional unit of life. It is the basic building block of all living organisms.

2. **Functional Role of Cells**: Cells are capable of performing all necessary biochemical processes that are essential for life. These processes include respiration, digestion, and excretion.

3. **Basic Needs for Survival**: All living organisms, regardless of their complexity, share basic needs for survival. These include:
- **Respiration**: The process through which cells obtain energy by converting food into usable energy.
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