What are the components of the transport system in highly organised plants

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In plants the water is transported through the xylem tissue system. The xylem tissue, vessels and tracheids of the roots stems and leaves are interconnected to form a continuous system of water-conducting channels that transports water to all parts of the plant. The water and minerals are taken up from the soil by the roots. The uptake of ions at the roots creates a difference in the concentration of these ions between the root and the soil. Thus, water moves into the root from the soil to eliminate this difference. This ensures that there is a steady movement of water into root xylem, creating a continuous column of water. The root pressure is not enough to transport the water to the high parts of the plant. The transpiration from the leaves creates a Transpiration Pull, which helps in the absorption and upward movement of water and minerals dissolved in it from roots to the leaves and ensure water and minerals transport even to the highest part of the plant. Structure of Nephron: Nephron is the Alteration unit of kidney. It consists of a tubule which is connected with collecting duct at one end and a cup shaped structure at the other end. This cup-shaped structure is called Bowman’s capsule. Every Bowman’s capsule contains a cluster of capillaries, called Glomerulus, with in the cup-shaped structure. The blood enters into glomerulus through Afferent arteriole of renal artery and leaves it through efferent arteriole. Fig. Structure of nephron (i) Functioning of nephron: F...

In highly organized plants, transport system consists of vascular tissue, namely xylem and phloem. Xylem carries water from roots to different parts of the plants. Phloem carries nutrients and food from leaves to different parts of the plants. Xylem is made up of tracheids, vessels, xylem parenchyma and xylem fibres. It is a lignified tissue. Evaporation of water from the leaves creates a transpiration pull. This results in the upward movement of water from the roots through the xylem. It shows only unidirectional flow.

components of the transport system in highly organised plants There are two types of transport systems in a higher plant • a. Water and mineral transport which consist of Xylem, root, and stomata. • b. Food transport system which consists of Phloem and companion cells. Xylem and phloem in highly organised plants Functions of the components: Xylem: Xylems are narrow vessels which connect roots to the leaves. Through these vessels, water and minerals from the root are transported to all parts of the body. Root: Root actively absorbs mineral ions and water from the soil. Plant absorb minerals actively, and water flows inside into the root due to the concentration gradient of minerals. This is called root pressure theory. Stomata: Root pressure itself cannot move minerals and water to higher plants of big sizes. A stoma is the small pores between stomatal cells through which gaseous exchange takes place. We call this process transpiration. Transpiration creates a pulling pressure on water and minerals present in xylem. As a result, water moves up to the leaves which require water and minerals for photosynthesis. Phloem: Food materials synthesised in chloroplast and amino acids can not move by itself. Phloem has companion cells and sieve tubes. Companion cells spend energy in the form of ATP and load the food and amino acids into the sieve tubes. It increases the osmotic pressure inside the tube. As a result, water moves in. Tissues which need food have low food contents and lo...

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In highly organised plants, there are two different types of conducting tissues − xylem and phloem.  Xylem conducts water and minerals obtained from the soil (via roots) to the rest of the plant.  Phloem transports amino acids and food materials from the leaves to different parts of the plant body. Categories • • (31.9k) • (8.8k) • (764k) • (261k) • (257k) • (218k) • (248k) • (2.9k) • (5.2k) • (664) • (121k) • (72.1k) • (3.8k) • (19.6k) • (1.4k) • (14.2k) • (12.5k) • (9.3k) • (7.7k) • (3.9k) • (6.7k) • (63.8k) • (26.6k) • (23.7k) • (14.6k) • (25.7k) • (530) • (84) • (765) • (49.1k) • (63.8k) • (1.8k) • (59.3k) • (24.5k)