Antas

Molecules, Biodiversity, Food and Health Biological Molecules Biological Molecules (a) describe how henry hold fast occurs between pee molecules, and relate this, and former(a) properties of water, to the roles of water in liveness organisms; Water is a polar molecule. This is because the oxygen segment pulls the sh ared electrons towards it, meaning that water is slightly negatively supercharged at the oxygen and positively charged at the hydrogen ends, so they can form hydrogen bonds with individually 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 play off together in solution Examples 70-95% of cytoplasm is water. Dissolved chemicals entertain objet dart in processes such as respiration and photosynthesis in living organisms Liquid The movement of materials around org anisms, 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.

ropiness also desexualises long, keep down water columns very infrangible and difficult to break Blood in animals and the vascular create from raw material in plants use water as a luculent 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 progress to fairly constant temperatures. vaporiza! tion of water can cool 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 surround of rudderless ice packs. Lakes tend not to freeze completely,...If you command to get a full essay, order it on our website: OrderCustomPaper.com

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