Question

3.
State the role of 'vessels' present in a plant.​

Answer 1

Answer:

Vessel elements are the building blocks of vessels, which constitute the major part of the water transporting system in those plants in which they occur. Vessels form an efficient system for transporting water (including necessary minerals) from the root to the leaves and other parts of the plant .

A vessel element or vessel member (also called trachea or xylem vessel) is one of the cell types found in xylem, the water conducting tissue of plants. Vessel elements are typically found in angiosperms (flowering plants) but absent from most gymnosperms such as conifers .

Xylem carries water and minerals up from the roots, where these valuable substances are absorbed, to stems and leaves which may be hundreds of meters above the ground. Phloem carries food from the leaves which produce it to storage areas (often down to the roots) or growth areas in other parts of the plant .

A vessel consists of a vertical series of vessel members that vary from elongated to squat, drum-shaped cells the walls of which are secondarily thickened with rings, spirals, or networks of cellulose, that later become lignified. The length of vessels varies from two cells to rows several metres long .

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