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Molecules, Biodiversity, Food and Health Biological Molecules Biological Molecules (a) describe how atomic number 1 hold fast occurs between irrigate molecules, and relate this, and former(a) properties of piddle, to the roles of water in nutriment organisms; Water is a polar molecule. This is because the type O segment pulls the sh ared electrons towards it, meaning that water is slightly negatively supercharged at the oxygen and positively charged at the enthalpy ends, so they can form hydrogen bonds with each other. This are continuing breaking and reforming, so the molecules can move virtually. topographical 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 piss objet dart in processes such as respiration and photosynthesis in living organisms Liquid The movement of materials arou nd 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.

viscidness also affects long, keep down water columns very strengthened and difficult to break Blood in animals and the vascular wind in plants use water as a mobile transport medium Cohesion Freezing Water freezes, forming screwball on the surface. Water beneath the surface becomes insulated and less declare to freeze Thermal stability Large bodies of water view fairly constant tempe ratures. vaporization of water can calm ! down 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 environment of rudderless ice packs. Lakes tend not to freeze completely,...If you hope to get a full essay, order it on our website: OrderCustomPaper.com

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