B1.1
Carbohydrates and Lipids
B1.2
Proteins
B2.1
Membranes and Membrane Transport
B2.2
Organelles and Compartmentalisation
B2.3
Cell Specialisation
B3.1
Gas Exchange
B3.2
Transport
B3.3
Muscle and Motility (HL)
B4.1
Adaptation to Environment
B4.2
Ecological Niches