Which part or zone of root is not function?

Options

A. Root cap- Protection of root apex
B. Region of elongation - Increase in root length
C. Region of meristematic activity Give rise to root hair
D. Region of maturation -Differentiation of cells

Answer

To answer the question "Which part or zone of root is not functionally matched with its role?", we will analyze the different zones of the root and their respective functions.

### Step-by-Step Solution:

1. **Identify the Zones of the Root**:
- The root has several distinct zones:
- Root Cap
- Meristematic Zone
- Zone of Elongation
- Zone of Maturation

2. **Understand the Function of Each Zone**:
- **Root Cap**: This is the protective structure at the tip of the root. Its primary function is to protect the root apex as it penetrates through the soil.
- **Meristematic Zone**: This zone consists of actively dividing cells. The function here is to produce new cells that will contribute to the growth of the root.
- **Zone of Elongation**: In this zone, the cells that were produced in the meristematic zone undergo rapid elongation, which contributes to the increase in root length.
- **Zone of Maturation**: This zone is where the cells differentiate and mature. It is also where root hairs develop, which are essential for water and mineral absorption.

3. **Analyze the Options**:
- **Root Cap**: Correctly matched with its function (protection).
- **Zone of Elongation**: Correctly matched with its function (increases root length).
- **Meristematic Zone**: Incorrectly matched; it does not give rise to root hairs. Instead, it is responsible for producing new cells.
- **Zone of Maturation**: Correctly matched with its function (differentiation and formation of root hairs).

4. **Conclusion**:
- The part of the root that is not functionally matched with its role is the **Meristematic Zone**, as it does not give rise to root hairs.

### Final Answer:
The part or zone of the root that is not functionally matched with its role is the **Meristematic Zone**.

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