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

on the whole living organisms need to distri furthere raw materials and do off with waste. To do this they need a remove form. Transport in spite of appearance small organisms can be adequately handled through processes such(prenominal) as diffusion, active transpose, osmosis, endocytosis and exocytosis (Roberts, 1993). In large multi-cellular organisms, such as corrects and mammals, a merchant marine carcass is required to move particles around. The transport clays of both lay downs and mammals consist of specialised tubes. In mammals these tubes atomic build 18 called arteries, capillaries and veins. This serial publication of tubes is collectively known as a cardiovascular system. The cardiovascular system consists of a series of vessels with a pump the center to move crinkle, the method of transport within this closed circulatory system (Fullick, 2000). The transport system within a skin rash plant to a fault consists of a closed system of tubes but it is not a circulatory system. 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 forking into capillaries).

The capillaries be tiny blood vessels within tissues where there is an trade 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 t ransport system cells and tissues are living! distant 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 likewise provide structural support to the plant (Fullick, 2000). Phloem is a compound tissue which contains covert tubes on with companion cells. The sieve tubes are the site of transport for sucrose from the leaves to other separate of...If you want to get a practiced essay, order it on our website: OrderCustomPaper.com

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