Question

The tracheids differ from vessels in

• A. Thick wall
• B. Bordered pit
• C. Absence of perforation
• D. Spiral thickening

Answer 1

The correct option is C Absence of perforation

Vessels have perforations in their cross walls. Water and minerals are efficiently conducted through these perforations.

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.

So, the correct answer is option C.