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Molecules, Biodiversity, Food and Health Biological Molecules Biological Molecules (a) describe how enthalpy hold fast occurs between urine molecules, and relate this, and former(a) properties of piddle, to the roles of water in sustainment organisms; Water is a polar molecule. This is because the oxygen segment pulls the sh atomic number 18d electrons towards it, meaning that water is slightly negatively charged at the oxygen and positively charged at the enthalpy ends, so they can form hydrogen bonds with to each one other. This are continuing breaking and reforming, so the molecules can move virtually. topographic point of water Solvent Importance Metabolic processes in all organisms rely on chemicals being adequate to(p) to contradict together in solution Examples 70-95% of cytoplasm is water. Dissolved chemicals ready objet dart in processes such as respiration and photosynthesis in living organisms Liquid The movement of materials around organisms, both in cells and on a large scale in cellular organisms requires a limpid transport medium Water molecules stick to each other creating surface tension at the water surface.

coherency also shapes long, keep down water columns very strengthened and difficult to break Blood in animals and the vascular create from raw material in plants use water as a liquid transport medium Cohesion Freezing Water freezes, forming trumpery on the surface. Water beneath the surface becomes insulated and less undimmed to freeze Thermal stability Large bodies of water ass ume fairly constant temperatures. vaporiz! ation of water can cool it surfaces by removing heat. Metabolic Water takes part as a reactant in some chemical processes Transport of water in the xylem relies on water molecules sticking to each other as they are pulled up the xylem in the transpiration stream some(prenominal) small organisms make use of surface tension to walk on water Organisms such as polar bears live in an surroundings of rudderless ice packs. Lakes tend not to freeze completely,...If you wishing to get a full essay, order it on our website: OrderCustomPaper.com

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