The Chemistry of Life: Water and Its Properties
Students will examine the unique properties of water and how its molecular structure makes it essential for all biological processes.
About This Topic
Students will examine the unique properties of water and how its molecular structure makes it essential for all biological processes.
Key Questions
- Explain how the hydrogen-bonding capacity of water accounts for its high specific heat capacity, high latent heat of vaporisation, and solvent properties for polar and ionic solutes, relating each property to a specific biological function.
- Analyse how the cohesion-tension mechanism, dependent on water's hydrogen bonding and surface tension, enables the ascent of water in tall xylem vessels against gravity.
- Evaluate the biological consequences for aquatic organisms if water exhibited a lower specific heat capacity and did not expand anomalously upon freezing, referencing the significance of ice formation at the water surface.
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