Transpiration and root pressure cause water to rise in plants by

Options

A. pulling and pushing it respectively
B. pushing it upward
C. pushing and pulling it, respectively
D. pulling it upward

Answer

**Step-by-Step Solution:**

1. **Understanding Transpiration:**
- Transpiration is the process through which water vapor is lost from the aerial parts of the plant, primarily through small openings called stomata. This loss of water creates a negative pressure within the plant's xylem vessels, which helps in pulling water upward from the roots to the leaves.

2. **Understanding Root Pressure:**
- Root pressure is generated when water is absorbed by the roots from the soil. This absorption creates a positive pressure in the xylem of the roots, pushing water upward into the plant.

3. **Mechanism of Water Movement:**
- The combination of transpiration and root pressure works together to facilitate the movement of water in plants. Transpiration pulls water upward due to the negative pressure created by the loss of water from the leaves, while root pressure pushes water upward from the roots due to the positive pressure created by water absorption.

4. **Conclusion:**
- Therefore, transpiration and root pressure cause water to rise in plants by the processes of pulling (transpiration) and pushing (root pressure) respectively.

**Final Answer:**
Transpiration and root pressure cause water to rise in plants by pulling (transpiration) and pushing (root pressure) respectively.

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