Attractive force of cell walls of xylem for water molecules is termed as

Options

A. Adhesion
B. Cohesion
C. Osmosis
D. Plasmolysis

Answer

To solve the question regarding the attractive force of cell walls of xylem for water molecules, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Xylem Function**:
- Xylem is a type of vascular tissue in plants responsible for the transport of water and minerals from the roots to other parts of the plant.

2. **Identifying Forces Involved**:
- In the context of xylem, two important forces are at play: cohesion and adhesion.
- **Cohesion** refers to the attraction between water molecules themselves, which helps maintain a continuous column of water in the xylem.

3. **Defining Adhesion**:
- **Adhesion** is the term used to describe the attractive force between the water molecules and the cell walls of the xylem. This force helps water to stick to the walls of the xylem vessels, facilitating its movement upward against gravity.

4. **Conclusion**:
- Therefore, the attractive force of cell walls of xylem for water molecules is termed as **adhesion**.

### Final Answer:
The attractive force of cell walls of xylem for water molecules is termed as **adhesion**.

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