Water possesses many unique qualities that are essential to maintaining viable living conditions
- Approximately 70% of the cell’s internal environment (i.e. cytoplasm) is water-based
- It is the only substance occurring naturally in all three states (solid, liquid, gas) on the Earth’s surface
- It is required for the anabolic construction of organic molecules (via condensation reactions)
- Water is an important medium for metabolic reactions as it is essential to acid-base neutrality and enzyme function
Biological Significance of Water Properties