List any 6 differences between Xylem and Phloem???
Phloem and xylem are complex tissues that perform transportation of food and water in a plant. They are the vascular tissues of the plant and together form vascular bundles. They work together as a unit to bring abouteffective transportation of food, nutrients, minerals and water.
PHLOEM XYLEM
Function: | Transportation of food and nutrients from leaves to storage organs and growing parts of plant. | Water and mineral transport from roots to aerial parts of the plant. |
Movement: | Bidirectional (Moves up or down the plant's stem from "source to sink") | Unidirectional (Moves up the plant's stem) |
Occurrence: | Roots, stems and leaves | Roots, stems and leaves |
Additional Functions: | Forms vascular bundles with xylem | Forms vascular bundles with phloem and gives mechanical strength to plant due to presence of lignified cells. |
Structure: | Tubular with soft walled cells | Tubular with hard walled cells |
Elements: | Sieve tubes, companion cells, phloem parenchyma, bast fibers, intermediary cells | Tracheids, vessel elements, xylem parenchyma, xylem sclerenchyma |
Nature of tissue: | Living tissue | Non living tissue at maturity |