Meristem is :-

Options

A. Specialised region of active cell division
B. Specialised region of active cell differentiation
C. Specialised region of active cell elongation
D. Specialised region of cell matuation

Answer

To answer the question "Meristem is:", we can break it down step by step.

### Step-by-Step Solution:

1. **Understanding Meristem**:
- Meristem refers to a specific region in plants where cells are actively dividing. This is crucial for plant growth and development.

2. **Types of Meristem**:
- There are two main types of meristems:
- **Apical Meristem**: Located at the tips of roots and shoots, responsible for primary growth (lengthening).
- **Lateral Meristem**: Involved in secondary growth (thickening), such as the vascular cambium.

3. **Function of Meristem**:
- The primary function of meristematic tissue is to produce new cells that can differentiate into various types of tissues (like xylem, phloem, etc.) and contribute to the growth of the plant.

4. **Active Cell Division**:
- The defining characteristic of meristem is that it is a specialized region where active cell division occurs. This distinguishes it from other regions of the plant where cells may be differentiating, elongating, or maturing.

5. **Conclusion**:
- Based on the understanding that meristem is a specialized region of active cell division, the correct answer to the question is: **"specialized region of active cell division."**

### Final Answer:
Meristem is a specialized region of active cell division.

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