The innermost layer of in root cortex is characterised by

Options

A. The radial walls are thickened by pecto cellulose band
B. The transverse walls are wrapped by suberised band
C. The radial walls are thickened by cutinised band
D. The transverse walls are thickened by chitinous band

Answer

To answer the question about the innermost layer of the root cortex, we will follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of the Root Cortex**:
- The root cortex is the layer of tissue located between the outer epidermis and the innermost endodermis in roots.

2. **Identify the Innermost Layer**:
- The innermost layer of the root cortex is known as the endodermis.

3. **Characteristics of the Endodermis**:
- The endodermis is characterized by the presence of a Casparian strip, which is a band of suberin (a waxy substance) that forms a barrier to the movement of water and solutes.

4. **Transverse Walls**:
- The cells of the endodermis have transverse walls that are distinct and play a role in the regulation of water and nutrient uptake.

5. **Subarised Band**:
- The endodermis is wrapped by a subarised band, which contributes to its function as a selective barrier.

6. **Evaluate the Options**:
- Based on the characteristics discussed, we can evaluate the options given in the question. The correct answer will mention the transverse walls and the subarised band.

7. **Conclusion**:
- The innermost layer of the root cortex (endodermis) is characterized by transverse walls that are wrapped by a subarised band.

### Final Answer:
The innermost layer of the root cortex is characterized by transverse walls that are wrapped by a subarised band.

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