In xylem tissue, vessels and tracheids of the roots, stems and leaves are interconnected to form a…
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.
Solution
• Root pressure: Cells in the contact of the soil actively take up ions ½+1
and creates a difference in concentration between roots and soil,
water moves from soil to root to eliminate this difference.
• Transpirational pull: Water lost through transpiration from aerial ½+1
parts of plants, creates a suction which pulls water column from
xylem cells of roots.