Question

Vessels differ from tracheids

• A. In being derived from single cell
• B. In having vertical rows of cells with dissolved cross walls
• C. In being living
• D. As they help in the conduction of water

Answer 1

Answer: (B)

In having vertical rows of cells with dissolved cross walls

Vessels are limited in their growth and are joined end to end to form continuous tubular structures with their cross walls dissolved to form a continuous tube. Tracheids are elongated with closed tapering ends. They have pit paired at the regions of union with other tracheids for the movement of sap.
Thus, the correct answer is option B.