A comparison of the systems of transport in mammals and flowering plants

exclusively living organisms need to distri furthere raw materials and do external with waste. To do this they need a remove form. Transport inside small organisms can be adequately handled through processes such(prenominal) as diffusion, active conveyance, osmosis, endocytosis and exocytosis (Roberts, 1993). In large multi-cellular organisms, such as corrects and mammals, a assault ashes is required to move particles around. The transport formations of both puts and mammals consist of specialised tubes. In mammals these tubes atomic fleck 18 called arteries, capillaries and veins. This serial publication of tubes is collectively known as a cardiovascular system. The cardiovascular system consists of a serial of vessels with a pump the center to move split, the method of transport within this closed circulatory system (Fullick, 2000). The transport system within a skin rash lay out besides consists of a closed system of tubes but it is not a circulatory syste m. Transport within a flowering plant takes place in xylem and phloem. In the mammalian cardiovascular system the heart pumps blood into a system of arteries (vessels that carry blood away from the heart) which in turn get-go into arterioles (smaller blood vessels which outgrowth into capillaries).

The capillaries be tiny blood vessels within tissues where there is an change over of materials between the blood and the cells. From the capillaries blood is carried screening towards the heart via a series of tiny venules which merge into larger vessels to form veins (Roberts, 1993). All mammalian transport system cells and tissues are living opposed those! in the flowering plant. Phloem tubes in the flowering plant are living but xylem are made up from dead, lignified cells. Xylem vessels are hollow tubes that transport urine and mineral ions and too provide structural support to the plant (Fullick, 2000). Phloem is a compound tissue which contains puree tubes on with companion cells. The sieve tubes are the site of transport for sucrose from the leaves to other split of...If you want to get a practiced essay, order it on our website: OrderCustomPaper.com

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