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What Is the Biological Importance of Water? Water is a major component for all living things. The cells in our bodies are formed with 70 - 95% mass of water. The water in the cells provide an environment which makes them more efficient, keeps them turgid and makes it possible for chemical reactions to take place. Water is needed for such chemical reactions as metabolism, Condensation reactions (Small molecules - Large molecules by removing water), and Hydrolysis (Large molecules - Small molecules by adding water). Water is the reactant in these chemical reactions so it is inevitable that it is present. Water also dissolves many of the bodies chemicals, even protein which also needs enzymes to be broken down. The amount of water in the body controls the rate of diffusion, osmosis and metabolism within a living organism therefore it is important that the organisms are compatible with water using...

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