Topic A

A 1.1 Water

A 1.2 Nucleic Acids

A 2.1 Origins of cells (HL ONLY)

A 2.2 Cell Structure

A 2.3 Viruses (HL ONLY)

A 3.1 Diversity of Organisms

A 3.2 Classification and Cladistics (HL ONLY)

A 4.1 Evolution and Speciation

A 4.2 Conservation

B 1.1 Carbohydrates and Lipids

B 1.2 Proteins

B. 2.1 Membranes and Membrane Transport

B 2.2 Organelles and Compartmentalization

B 2.3 Cell Specialization

B 3.1 Gas Exchange

B 3.2 Transport

B 3.3 Muscle and Motility (HL ONLY)

B 4.1 Adaptation to the Environment

B. 4.2 Ecological Niches

  C 1.1 Enzymes and Metabolism

C 1.2 Cell respiration

C 1.3 Photosynthesis

C 2.1 Chemical Signalling (HL ONLY)

C 2.2 Neural Signalling

C 3.1 Integration of Body Systems

C 3.2 Defence against Disease

C. 4.1 Populations and Communities

C 4.2 Transfers of Energy and Matter

D 1.1 DNA Replication

D 1.2 Protein Synthesis

D 1.1 Mutations and Gene Editing

D 2.1 Cell and Nuclear Division]

D 2.2 Gene Expression (HL only)

D 2.3 Water potential 

D 3.1 Reproduction

D. 3.2 Inheritance

D 3.3 Homeostasis

D 4.1 Natural Selection

D 4.2 Stability and Change

D 4.3 Climate Change