Question

Tracheids differ from vessels in their

• A. Origin
• B. Function
• C. Non-lignified walls
• D. Being non-perforated

Answer 1

The correct option is D Being non-perforated

Vessels have perforations in their cross walls. Water and minerals are efficiently conducted through these perforations. Vessels are present in most of the angiosperms and also in certain lower plants like Gnetum, Marsilea and Selaginella. Whereas tracheids are non-perforated. Conduction of water and minerals is not as efficient as in vessels. Tracheids are found in pteridophytes, most of the gymnosperms and few angiosperms.
Therefore, the correct answer is option D.