Question

In xylem tissue, vessels and tracheids of the roots, stems and leaves are interconnected to form a continuous system of water-conducting channels reaching all parts of the plant. Explain how this is achieved.

Answer 1

In xylem tissue, vessels and tracheids are dead, elongated cells arranged end to end.

1. The end walls of vessels are perforated, forming continuous hollow tubes for water transport.
2. Tracheids have pits on their walls, which allow water to pass from one cell to another.
3. These interconnected vessels and tracheids extend from roots to stems and leaves, forming a continuous water-conducting channel throughout the plant.