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The Biological Importance of Water
Member rating: No Rating | Words: | Submitted: Thu Aug 14 2003
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The Biological Importance of Water Water is essential to life itself, with out water life on earth would not exist. Water is a major component of cells, typically forming between 70 and 95% of the mass of the cell. This means that we are made from approximately 80% water by mass. Water also provides an environment for organisms to live in as 75% of the earth is covered in water. Water itself is a simple molecule made up of 2 hydrogen atoms and one oxygen atom - H20. The hydrogen and oxygen atoms are bonded covalently. Covalent bonds are formed by sharing electrons in the outer orbits of the quantum shells. In the case of water however the large number of protons in the oxygen nucleus have a stronger attraction for these shared electrons than the comparatively tiny hydrogen nuclei. This pulls the electrons slightly closer to the oxygen nucleus and...
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