End walls of tracheids and vessels respectively are

Options

A. Pitted & perforated
B. Perforated & pitted
C. Both perforated
D. Both pitted

Answer

To answer the question regarding the end walls of tracheids and vessels, we can break down the information step by step:

### Step-by-Step Solution:

1. **Understanding Tracheids**:
- Tracheids are elongated cells found in the xylem of vascular plants.
- They have thick walls and are primarily responsible for the conduction of water and minerals.
- The end walls of tracheids are characterized by the presence of pits.

2. **Understanding Vessels**:
- Vessels are also part of the xylem and are composed of vessel elements that are shorter and wider than tracheids.
- Vessels are designed for more efficient water transport.
- The end walls of vessels contain perforation plates, which are openings that allow for the free flow of water between vessel elements.

3. **Comparing End Walls**:
- The end walls of tracheids are **pitted**, meaning they have small openings (pits) that facilitate water movement.
- The end walls of vessels are **perforated**, meaning they have larger openings (perforation plates) that connect vessel elements directly.

4. **Conclusion**:
- Therefore, the end walls of tracheids are pitted, and the end walls of vessels are perforated.

5. **Final Answer**:
- The correct answer to the question is: **Pitted and Perforated**.