The absorbed water can rise to the highest point by

Options

A. root pressure
B. imbibitions force
C. force of capillary
D. transportation pull

Answer

To solve the question "The absorbed water can rise to the highest point by," we will evaluate each of the options provided and determine which one is responsible for the upward movement of water in plants.

### Step-by-Step Solution:

1. **Understanding Root Pressure**:
- Root pressure is generated by osmotic pressure in the root cells. It helps to push water upward into the xylem.
- However, root pressure is not sufficient to raise water to the highest points in tall plants; it primarily supports water movement over short distances.
- **Conclusion**: Root pressure is not the correct answer.

**Hint**: Consider how root pressure functions and its limitations in tall plants.

2. **Evaluating Imbibition Force**:
- Imbibition is the process where water is absorbed by solid colloids, leading to an increase in volume.
- While imbibition aids in water absorption and seed germination, it does not contribute to the upward movement of water in plants.
- **Conclusion**: Imbibition force is not the correct answer.

**Hint**: Think about the role of imbibition in water absorption versus its role in water transport.

3. **Analyzing Force of Capillary Action**:
- Capillary action occurs due to the cohesive forces between water molecules and adhesive forces between water and the walls of the xylem vessels.
- This action can help move water up to a certain height (around 3-4 meters) but is limited in its effectiveness for very tall plants.
- **Conclusion**: While capillary action contributes to water movement, it is not the primary mechanism for raising water to the highest points.

**Hint**: Reflect on the height limitations of capillary action in relation to plant height.

4. **Identifying Transpiration Pull**:
- Transpiration pull is the process where water evaporates from the stomata of leaves, creating a negative pressure that pulls water upward through the xylem.
- This mechanism is highly effective and is responsible for the movement of water to the highest points in tall plants.
- **Conclusion**: Transpiration pull is the correct answer.

**Hint**: Consider how evaporation from leaves creates a pressure difference that facilitates water movement.

### Final Answer:
The absorbed water can rise to the highest point by **transpiration pull**.