The Biological Importance of Water Water is a simple molecule, made of hydrogen atoms and oxygen atoms in the ratio of 2:1, yet it is fundamental to life. In active living cells, two-thirds, or often more, of the area is occupied by water, and two-thirds of the globe is covered in water. Water is therefore extremely abundant, and in biological terms it has great importance both inside cells, and externally, for example as a habitat. Water …showed first 75 words of 2029 total…

…showed last 75 words of 2029 total…to keep this from rising too high. The high water content of cells gives them insulation, and protects them from rapid temperature changes, thus helping to keep cells at a fairly constant temperature for all the reactions that need to take place within the cells. Therefore, due to it's unusual properties, water is an extremely important part of life, as it plays many vital roles in lots of functions necessary for all organisms to exist.