Hydrogen bonds that exist between water molecules are formed as a result of an uneven dissemination of electron density between the atoms. The oxygen has an unshared pairs of electrons which makes it partially negative and the hydrogen atom partially positive; these and so attract to form hydrogen bond. Water is therefore a polar molecule.
Water is essential for two main reasons. Firstly, it is the major component of cell, 70 75 percentage of cell mass. And secondly, it provides an milieu for organisms that live in water. Ie. ¾ of the earth is water.
Water has got many properties which relates to its biologic functions. Noticeable among them includes the following;
Water has firmness properties. It is an excellent solvent for many compounds.
Some compounds such as sugar and glycerin crock up in it as molecule whiles others called electrolytes (nacl) dissociate and dissolve not as neutral molecules but as supercharged species called ions. This is due to the polar nature of water molecule carries a slightly positive charge whiles the oxygen side carries a slightly negative charge.
These solvent properties of water are bouncy in biology because many biochemical reactions take posture only within aqueous solution. Example is hydrolysis reaction involving lucre and protein to yield glucose and amino acid respectively for cell absorption. Water is also use to transport biological molecules. Example is the remotion of metabolic waste such as urea and ammonium hydroxide in urine.
The thermal properties of water are also cogitate to its hydrogen bond. This bond restricts the movement of water...If you want to get a full essay, order it on our website: Orderessay
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