Question

Basic difference between vessel and tracheid is in

• A. Types of pits
• B. Thickness and lignification
• C. Perforations of end walls
• D. Function

Answer 1

The correct option is C Perforations of end walls

Tracheary elements, both tracheids and vessels, are highly specialized cells. These cells are devoid of protoplast when mature. These non-living cells are elongated with lignified cell walls. The main difference between tracheids and vessels is that vessels have perforations at the end plates which make them a tube-like, long structure while tracheids do not have end plates.

So, the correct answer is 'Perforations of end walls.'