5 Questions
What percentage of water do cells consist of?
70–95%
What makes water a solvent?
Its ability to dissolve many substances
What is the term for the attraction between water molecules of the same kind?
Cohesion
What property of water allows an insect to walk, stand, or run on its surface?
Cohesion
What makes water a life-supporting substance?
Its unique properties
Study Notes
Water and Its Properties
- Cells consist of approximately 60-70% water.
- Water is a solvent because of its polar nature, allowing it to dissolve a wide variety of substances.
Intermolecular Forces
- The attraction between water molecules of the same kind is known as hydrogen bonding.
Surface Tension
- The surface tension of water, resulting from hydrogen bonding, allows an insect to walk, stand, or run on its surface.
Life-Supporting Properties
- Water is a life-supporting substance due to its unique combination of properties, including its high heat capacity, ability to dissolve nutrients and oxygen, and facilitate chemical reactions.
Test your knowledge about the importance of water in sustaining life with this quiz. Explore the unique properties of water and its crucial role in the chemical reactions of living organisms. Learn more about the structure and properties of the H2O molecule.
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