Identify the correct sequence of pathway of water through the root tissues:

Options

A. Root hair ` rarr` Cortex ` rarr` Endodermis ` rarr` Pericycle ` rarr` Xylem
B. Xylem ` rarr` Endodermis ` rarr` Pericycle ` rarr` Cortex ` rarr` Root hair
C. Endodermis ` rarr` Xylem ` rarr` Pericycle ` rarr` Root hair ` rarr` Cortex
D. Root hair ` rarr` Cortex ` rarr` Pericycle ` rarr` Endodermis ` rarr` Xylem

Answer

To identify the correct sequence of the pathway of water through the root tissues, we need to understand the structure of the root and the order in which water travels through various layers. Here’s the step-by-step solution:

### Step-by-Step Solution:

1. **Root Hair**: Water absorption begins at the root hair, which is an extension of the root epidermis. Root hairs increase the surface area for water absorption.

2. **Cortex**: After entering through the root hair, the water moves into the cortex. The cortex is the layer of cells located just beneath the epidermis and serves as a storage area and pathway for water.

3. **Endodermis**: Next, the water passes through the endodermis, which is the innermost layer of the cortex. The endodermis contains a Casparian strip that regulates the flow of water and minerals into the vascular system.

4. **Pericycle**: After the endodermis, the water moves into the pericycle, which is a layer of cells that can give rise to lateral roots and is located just outside the vascular tissue.

5. **Xylem**: Finally, the water enters the xylem, which is the vascular tissue responsible for the transport of water and dissolved minerals from the roots to the rest of the plant.

### Correct Sequence:
The correct sequence of the pathway of water through the root tissues is:
**Root Hair → Cortex → Endodermis → Pericycle → Xylem**