What is the arrangment of root zones starting from root tip

Options

A. Root cap , cell division, cell enlargement and cell maturation
B. Root cap, cell division, cell maturation and cell enlargement
C. Cell division , cell maturation, cell enlargement and root cap
D. Cell division, cell enlargement, cell maturation and root cap.

Answer

To answer the question about the arrangement of root zones starting from the root tip, we can break it down into the following steps:

### Step-by-Step Solution:

1. **Identify the Root Tip Structure**:
- The root tip is covered by a protective structure known as the **root cap**. This thimble-shaped cap protects the delicate growing tip of the root as it pushes through the soil.

2. **Zone of Meristematic Activity**:
- Just above the root cap is the **zone of meristematic activity**. This region is approximately 1 mm long and consists of actively dividing cells. These cells have dense cytoplasm and a large number of organelles, which facilitate rapid cell division.

3. **Zone of Elongation**:
- Above the meristematic zone is the **zone of elongation**. This region is about 4 to 8 mm long and contains newly formed cells that have stopped dividing. Instead, these cells increase in size, contributing to the elongation of the root.

4. **Zone of Maturation**:
- The final zone is the **zone of maturation**, located above the zone of elongation. In this region, the cells undergo differentiation to form specialized structures, including root hairs, which are essential for water and nutrient absorption.

5. **Sequence of Root Zones**:
- Therefore, the correct sequence of the root zones starting from the root tip is:
1. **Root Cap**
2. **Zone of Meristematic Activity**
3. **Zone of Elongation**
4. **Zone of Maturation**

### Final Answer:
The arrangement of root zones starting from the root tip is:
1. Root Cap
2. Zone of Meristematic Activity
3. Zone of Elongation
4. Zone of Maturation

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