The cells positioned away from the root apical meristems differentiate as

Options

A. epidermis
B. cortex
C. vascular bundle
D. root cap cells

Answer

To answer the question about the differentiation of cells positioned away from the root apical meristem, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Role of the Root Apical Meristem**: The root apical meristem is the region at the tip of the root where active cell division occurs. This area is responsible for the growth of the root.

2. **Identify the Location of Differentiation**: Cells that are positioned away from the root apical meristem are no longer in the zone of active division. As they move away from this area, they begin to differentiate into specific cell types.

3. **Consider the Options Provided**: The options given are:
- Option 1: Epidermis
- Option 2: Cortex
- Option 3: Vascular bundle
- Option 4: Root cap cells

4. **Analyze Each Option**:
- **Epidermis**: This is the outer layer of cells but is not specifically differentiated from cells away from the apical meristem.
- **Cortex**: This is the layer of tissue between the epidermis and the vascular bundles, but it is not the primary differentiation of cells farthest from the apical meristem.
- **Vascular Bundle**: These are involved in transport and are found deeper in the root structure, not directly differentiated from the cells positioned away from the apical meristem.
- **Root Cap Cells**: These cells are located at the very tip of the root and are crucial for protecting the root as it grows through the soil.

5. **Conclusion**: The cells positioned away from the root apical meristem differentiate primarily into root cap cells, which serve to protect the root tip.

### Final Answer:
The cells positioned away from the root apical meristem differentiate as **root cap cells** (Option 4).