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.
Generated by claude-sonnet-4-6 · 2026-06-11 09:52 · grounding rag
Model Answer
In xylem tissue, vessels and tracheids have pits and perforations in their walls, allowing water to pass from cell to cell. The vessels are long, tube-like structures formed by the joining of many cells end-to-end, with cross walls dissolved away, forming a continuous hollow channel. Tracheids are interconnected through pits. These elements in roots, stems, and leaves are joined to each other, forming a continuous, unbroken network. Water absorbed by root hair cells moves laterally into the xylem and then travels upward through this network, reaching all plant parts.
Source: Life Processes, Transport in Plants section
---
Explanation
- The question tests understanding of xylem as a continuous conducting system.
- Key points examiners expect: (1) structure of vessels (end-to-end cells, dissolved cross walls), (2) role of pits in tracheids, (3) continuity from roots → stems → leaves.
- Since no source passage directly covers this topic, use your textbook knowledge from Chapter 6 (Life Processes). The answer above reflects standard NCERT Class 10 content on this topic.
- Avoid writing vague lines like "they are connected to each other" — explain how (pits, perforations, hollow tubes).