Question

Tracheids differ from the tracheary elements in:

• A. Having Casparian strips
• B. Being imperforate
• C. Lacking nucleus
• D. Being lignified

Answer 1

The correct option is B Being imperforate

Tracheary elements are dead long cylindrical tube-like structure made up of many cells called vessel members, each with lignified walls and a large central cavity. Tracheary elements are interconnected through perforations in their common walls.
Whereas tracheids are dead elongated or tube like cells with thick and lignified walls and tapering ends that do not carry any perforation.