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IB Biology

Please choose a topic below for experiments that our science specialists have selected to help students deepen their knowledge.

A Unity and Diversity

1 Molecules

A1.1 Water

A1.2 Nucleic acids

2 Cells

A2.3 Viruses

3 Organisms

A3.2 Classification and Cladistics

4 Ecosystems

A4.1 Evolution and speciation

A4.2 Conservation of biodiversity

B Form and function

1 Molecules

B1.1 Carbohydrates and lipids

B1.2 Proteins

2 Cells

B2.1 Membranes and membrane transport

B2.2 Organelles and compartmentalization

B2.3 Cell specialization

3 Organisms

B3.1 Gas Exchange

B3.2 Transport

B3.3 Muscle and motility

4 Ecosystems

B4.1 Adaptation to environment

B4.2 Ecological niches

C Interactions and interdependence

1 Molecules

C1.1 Enzymes and metabolism

C1.2 Cell respiration

C1.3 Photosynthesis

2 Cells

C2.1 Chemical signalling

C2.2 Neural signalling

3 Organisms

C3.1 Integration of body systems

4 Ecosystems

C41.1 Populations and communities

C4.2 Transfers of energy and matter

D Continuity and change

1 Molecules

D1.1 DNA replication

2 Cells

D2.1 Cell and nuclear division

D2.2 Gene expression

D2.3 Water potential

3 Organisms

D3.1 Reproduction

D3.3 Homeostasis

4 Ecosystems

D4.1 Natural selection

D4.2 Stability and change

D4.3 Climate change

* The IB Diploma Program is an official program of the International Baccalaureate Organization (IBO) which authorizes schools to offer it. The material available here has been developed independently of the IBO and is not endorsed by it.