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Show Why Water Is Biologically Important In Living Organisms And Why It's Important As An Environment For Them.

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Show Why Water Is Biologically Important In Living Organisms And Why It's Important As An Environment For Them. Water is essential to life itself, with out water, life on earth would not exist. Water is a major component of cells, normally forming between 70 and 95% of a cell. This means that we are made from approximately 80% water and some creatures such as jellyfish are made of up to 96% water. Water also provides an environment for organisms to live in, 75% of the earth is covered in water. Only 1% of the world's water is usable to us. About 97% is salty seawater, and 2% is frozen in glaciers and polar ice caps. Thus that 1% of the world's water supply is a precious commodity necessary for our survival. Dehydration will kill us faster than starvation. Since the plants and animals we eat also depend on water, lack of it could cause both dehydration and starvation. Water itself is a simple molecule made up of 2 hydrogen atoms and one oxygen atom, H 0. The hydrogen and oxygen atoms are bonded covalently. ...read more.


Water also has many thermal properties as a temperature stabiliser. Water has a boiling point of 100 degrees C and a melting point of 0 degrees C. This is unusual for a molecule of its size because other molecules of a similar size, are gases at room temperature when water is a liquid. This is due to the hydrogen bonds, which hold the water molecules in a liquid state. It takes a lot of energy to raise the temperature of water significantly, but once warm it cools slowly. Large bodies of water stay at almost the same temperature with only a very gradual change that makes it easier to achieve a stable body temperature. Water is described as having a high latent heat of evaporation because of the large number of bonds holding water molecules together, it takes is a large amount of energy to separate them and turn the water to gas. Animals uses this to cool their bodies, as in sweating and panting, by using excess body heat to evaporate water from their surfaces, resulting in them transferring a lot of energy into the environment. ...read more.


Good water is essential to body cleansing. Making up almost three-fourths of the body, every cell is regulated, monitored and dependent on an efficient flow of water. Not one of the processes in our bodies could take place without water. Water is something that we take for granted. When you get enough water fluid retention decreases, and gland and hormone functions improve. Water regulates the body temperature, maintains the equilibrium and helps the liver break down and release more fat. Water carries every nutrient, mineral, vitamin, protein, hormone and chemical messenger in your body to its destination. Proteins and enzymes, the basis for your body's healing capacity, function efficiently only when you have enough water. Our daily energy depends on water, because your body's chemical reactions are water-dependent. The brain tissue is 85% water. It lubricates and flushes wastes and toxins from all cells. It cleanses the internal organs. It helps eliminate toxins from the bloodstream. In conclusion water's unique properties make it perhaps the most biologically important substance on the planet. No other substance shares similar properties to water and in the way that one single molecule can possess such varied and essential characteristics. Sara Moore 01/05/2007 1 ...read more.

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