Which phase of growth is represented by root apex & shoot apex?

Answer

### Step-by-Step Solution:

1. **Identify the Structures**: The question asks about the root apex and shoot apex of a plant. These are the tips of the root and stem where growth occurs.

2. **Understand the Role of Meristems**: At both the root apex and shoot apex, there are specific types of tissues known as meristems. These tissues are responsible for the growth of the plant.

3. **Differentiate Between Types of Meristems**:
- The shoot apex contains **shoot meristematic tissue**, which contributes to the growth of the stem and leaves.
- The root apex contains **root meristematic tissue**, which contributes to the growth of the root.

4. **Identify the Growth Phase**: The phase of growth represented by both the shoot apex and root apex is known as the **meristematic phase**. In this phase, cells are actively dividing.

5. **Characteristics of the Meristematic Phase**:
- Cells in this phase are continuously dividing.
- The walls of the cells are thin and there is a minimal deposition of cellulose in the cell walls.

6. **Conclusion**: Therefore, the phase of growth represented by the root apex and shoot apex is the **meristematic phase**.