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2.2.U1 Water molecules are polar and hydrogen bonds form between them.
2.2.U2 Hydrogen bonding and dipolarity explain the cohesive, adhesive, thermal and solvent properties of water. [Students should know at least one example of a benefit to living organisms of each property of water. Transparency of water and maximum density at 4°C do not need to be included.]
2.2.U3 Substances can be hydrophilic or hydrophobic.
2.2.A1 Comparison of the thermal properties of water with those of methane. [Comparison of the thermal properties of water and methane assists in the understanding of the significance of hydrogen bonding in water.]
2.2.A2 Use of water as a coolant in sweat.
2.2.A3 Modes of transport of glucose, amino acids, cholesterol, fats, oxygen and sodium chloride in blood in relation to their solubility in water.
2.2.U2 Hydrogen bonding and dipolarity explain the cohesive, adhesive, thermal and solvent properties of water. [Students should know at least one example of a benefit to living organisms of each property of water. Transparency of water and maximum density at 4°C do not need to be included.]
2.2.U3 Substances can be hydrophilic or hydrophobic.
2.2.A1 Comparison of the thermal properties of water with those of methane. [Comparison of the thermal properties of water and methane assists in the understanding of the significance of hydrogen bonding in water.]
2.2.A2 Use of water as a coolant in sweat.
2.2.A3 Modes of transport of glucose, amino acids, cholesterol, fats, oxygen and sodium chloride in blood in relation to their solubility in water.
Bioknowledgy
Alex Lee
Extra Resources
Hydrogen bonding
H-bonds in water, from Northland College
The temporary nature of hydrogen bonds in water by St Olaf College
Drawing the structure of water molecules by Stephanie Castle
Polarity of water by Click4Biology
Properties of water
Properties of water by Sunamas Inc.
Properties of water, from Northland College
Molecule polarity simulation from PhET Labs (allow Java to run)
Solubility in water simulation from PhET Labs (allow Java to run)
The thermal, cohesive and solvent properties of water by Stephanie Castle
The relationship between the properties of water and it's uses by Stephanie Castle
Cohesion in water by Click4Biology
Thermal properties of water by Click4Biology
Solubility and transport by water
Water as a solvent by Click4Biology
Dissolving, from Northland College
Dissolving NaCl from PreparatoryChemistry
PhET Labs: Salts and Solubility and also Dissolving Sugars and Salts
H-bonds in water, from Northland College
The temporary nature of hydrogen bonds in water by St Olaf College
Drawing the structure of water molecules by Stephanie Castle
Polarity of water by Click4Biology
Properties of water
Properties of water by Sunamas Inc.
Properties of water, from Northland College
Molecule polarity simulation from PhET Labs (allow Java to run)
Solubility in water simulation from PhET Labs (allow Java to run)
The thermal, cohesive and solvent properties of water by Stephanie Castle
The relationship between the properties of water and it's uses by Stephanie Castle
Cohesion in water by Click4Biology
Thermal properties of water by Click4Biology
Solubility and transport by water
Water as a solvent by Click4Biology
Dissolving, from Northland College
Dissolving NaCl from PreparatoryChemistry
PhET Labs: Salts and Solubility and also Dissolving Sugars and Salts
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Topic 2 - Molecular Biology
- Topic 2.1 - Molecules to Metabolism
- Topic 2. 2 - Water
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