IB Biology Topic A1.1 Water (SL/HL) covers syllabus content as part of Topic A1: Molecules under Theme A: Unity and Diversity. Use these notes, questionbank, videos, flashcards, and lessons to review the topic, practise exam questions, and move between notes, videos, flashcards, and lessons where available.
A1.1 Water is part of Topic A1: Molecules under Theme A: Unity and Diversity.
What this topic covers
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 as a medium for metabolism and transport
A1.1.6 Physical properties of water and the consequences for animals in aquatic habitats
A1.1.7 Extraplanetary origin of water on Earth and reasons for its retention (HL only)
A1.1.8 Relationship between the search for extraterrestrial life and the presence of water (HL only)