Understanding Transportation in Animals and Plants Module
This module explores the transportation processes in plants, focusing on how water and nutrients are absorbed through roots, the role of root hairs, vascular tissue, xylem and phloem in transporting substances, and the important process of transpiration in cooling and water release. It highlights the significance of these mechanisms in maintaining plant health and growth.
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TRANSPORTATION IN ANIMALS AND PLANTS MODULE 3\3 PREPARED BY : - MITA SAHA TGT (SS) A.E.C.S..-1 JADUGUDA
TRANSPORTATION IN ANIMALS AND PLANTS MODULE 3 / 3 TRANSPORT OF SUBSTANCE IN PLANTS Plants absorb water and minerals by the roots from the soil. The roots have root hairs. The root hair increase the surface area of the root for the absorption of water and mineral nutrients dissolved in water . The root hair is in contact with the water present between the soil particles .
VASCULAR TISSUE Plants have pipe like vessels to transport water and nutrients from the soil. The vessels are made of special cells , forming the vascular tissue . The tissue is a group of cells that perform specialized function in an organism. Vascular tissue is divided into two types Xylem Phloem
XYLEM The vascular tissues for the transport of water and nutrients in the plants are called xylem . Xylem forms a continuous network of channels that connect s roots to the leaves through the stem and branches and thus transport water to the entire plant PHLOEM The leaves synthesise food for the plant . The food has to be transported to all parts of the plant. This is done by the vascular tissue called the phloem. Thus . xylem and phloem transport substances in the plants.
TRANSPIRATION Plants release a lot of water by the process of transpiration through the stomata present on the surface of the leaves . The evaporation of water from leaves generates a suction pull, which can pull water to great heights in the tall trees and called as Transpirational pull . Transpiration also cools the plants .
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