Question

Which of the following statements is true?

• A. Vessels are unicellular with narrow lumen
• B. Vessels are multicellular with side lumen
• C. Tracheids are unicellular with wide lumen
• D. Tracheids are multicellular with narrow lumen

Answer 1

The correct option is C Tracheids are unicellular with wide lumen

Xylem is a tissue which is present in vascular plants and helps in conducting of water and minerals from roots to the stem and leaves.. Xylem is composed of different kinds of elements, namely, tracheids, vessels, xylem fibres and xylem parenchyma.

Vessels are multicellular and with wide lumen. The wall of vessels are lignified and hard, but not very thick. The cell cavity or lumen is wide
Tracheids are unicellular and with wide lumen. Bordered pits are present in cross walls.