Why is the polar nature of a water molecule important to living organisms?

The polarity of water allows two important things to happen (or not happen) in living organisms for survival.





-First, since water is polar, it has an unequal distribution of charge. This means that water molecules are slightly positive and negative. This quality is important because that makes water a good solvent (it can dissolve many things). Other polar compounds and ions can easily be dissolved in water because polar + polar = even distribution of charge, and ions have a charge, so it's attracted to the opposite charge on the water molecule.





The ability of water to dissolve many solutions is essential in organisms. In the bloodstream, for example, sugars and other nutrients are dissolved so that the blood cells can carry it to cells in the body. If sugars weren't dissolved, they couldn't reach cells.





-Second, the polarity of water is important in repelling nonpolar compounds. Nonpolar compounds don't dissolve well in water (like how oil, a nonpolar solution, forms ';beads'; in water). This is important to cell membranes in the body. The shape and function of cell membranes depend on the interaction of polar water with nonpolar membrane molecules.Why is the polar nature of a water molecule important to living organisms?
because without water, chemical reaction can't occur.


so its play a vital role for every single organisms.Why is the polar nature of a water molecule important to living organisms?
It makes it a good solvent for ions, carbohydrates and amino acids, It permits ionic gradients, and numerous ionic cell responses based on potential (voltage) differences.





Yout heart could not beat, your brain could not work, none of your muscles could work without polar moecules of water.





Rex, from Indiana
So that it is a solvent, plus maintains temperature in the body.
If water wasn't polar, ice would sink instead of float. This would kill all life in lakes and oceans, and make it impossible for life on this planet.





It's amazing that a little thing like ice floating could have such an impact on life!