What physical and chemical properties of water make it essential for life?
What are the challenges and opportunities of water as a habitat?
How do the various intermolecular forces of attraction affect biological systems?
What biological processes only happen at or near surfaces?
A1.1.1 Water as the medium for life
A1.1.2 Hydrogen bonds as a consequence of the polar covalent bonds within water molecules
A1.1.3 Cohesion of water molecules due to hydrogen bonding and consequences for organisms
A1.1.4 Adhesion of water to materials that are polar or charged and impacts for organisms
A1.1.5 Solvent properties of water linked to its role as a medium for metabolism and for transport in
A1.1.6 Physical properties of water and the consequences for animals in aquatic habitats
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A1.1.7 AHL Extraplanetary origin of water on Earth and reasons for its retention
A1.1.8 AHL Relationship between the search for extraterrestrial life and the presence of water
The power point presentation and the accompanying student notes are used as resources in class - together with activities, discussion, simulations and experiments.