In a young root absorption of water takes place through

Options

A. Root cap region
B. Root hair region
C. Zone of elongation
D. Mature region with a corky layer

Answer

### Step-by-Step Solution:

1. **Understanding Water Absorption in Roots**: Water absorption in young roots occurs primarily through specific regions of the root structure. The question asks where this absorption takes place.

2. **Identifying the Regions of the Root**: The root has several regions:
- Root cap region
- Root hair region
- Zone of elongation
- Mature region with corky layer

3. **Analyzing Each Region**:
- **Root Cap Region**: This region primarily protects the growing tip of the root and is not involved in water absorption.
- **Root Hair Region**: This region contains root hairs, which are unicellular extensions of the root epidermis (epiblema). They significantly increase the surface area for absorption.
- **Zone of Elongation**: This area is responsible for the growth of the root but is not primarily involved in water absorption.
- **Mature Region with Corky Layer**: This region is typically involved in protection and does not facilitate water absorption.

4. **Focusing on the Root Hair Region**: The root hairs are specifically designed for absorption. They have thin walls and a large surface area, making them efficient for taking up water.

5. **Osmotic Potential**: The root hairs are surrounded by soil that has a high mineral content. This high mineral concentration increases the osmotic potential in the soil, leading to a gradient that allows water to move into the root hairs from the soil.

6. **Conclusion**: Given the analysis, the region where water absorption takes place in young roots is the **root hair region**.

### Final Answer:
Water absorption in a young root takes place through the **root hair region**.

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