International Baccalaureate (IB) Biology revision notes made for the Standard Level (SL) and Higher Level (HL). This covers all the topics and modules mentioned in the specification/syllabus.
Below we cover all the topics mentioned in the latest syllabus.
General IB Revision Materials:
Standard Level Notes:
Topic 1: Cell Biology Revision Notes:
Topic 2: Molecular Biology Revision Notes:
- 2.1 – Chemical Elements and Water
- 2.2 – Carbohydrates, Lipids and Proteins
- 2.3 – DNA Structure
- 2.4 – DNA Replication
- 2.5 – Transcription and Translation
- 2.6 – Enzymes
- 2.7 – Cell Respiration
- 2.8 – Photosynthesis
Topic 3: Genetics Revision Notes:
- 3.1 – Chromosomes, Genes, Alleles and Mutations
- 3.2 – Meiosis
- 3.3 – Theoretical Genetics
- 3.4 – Genetic Engineering and Biotechnology
- Eye Anatomy (Image)
Topic 4: Ecology Revision Notes:
- 4.1 – Communities and Ecosystems
- 4.2 – The Greenhouse Effect
- 4.3 – Populations
- 4.4 – Evolution
- Energy Flow (Image)
- Pyramid of Energy (Image)
Topic 5: Evolution and Biodiversity Revision Notes:
- 5.1 – Evolution and Biodiversity
- 5.2 – Natural Selection
- 5.3 – Classification of Biodiversity
- 5.4 – Cladistics
Topic 6: Human Physiology Revision Notes:
- 6.1 – Digestion
- 6.2 – The Transport System
- 6.3 – Defence Against Infectious Diseases
- 6.4 – Gas Exchange
- 6.5 – Nerves, Hormones and Homeostasis
- 6.6 – Reproduction
Higher Level Notes:
Topic 7: Nucleic Acids Revision Notes:
- 7.1 – DNA Structure
- 7.2 – DNA Replication
- 7.3 – Transcription
- 7.4 – Translation
- 7.5 – Proteins
- 7.6 – Enzymes
Topic 8: Metabolism, Cell Respiration and Photosynthesis Notes:
Topic 9: Plant Biology Notes:
- 9.1 – Plant Structure and Growth
- 9.2 – Transport in Angiospermophytes
- 9.3 – Reproduction in Angiospermophytes
- Plan Diagram of Leaf
- Transportation of Water in Angiospermophytes
Topic 10: Genetics and Evolution Notes:
Topic 11: Animal Physiology Notes:
- 11.1 – Defence Against Infectious Diseases
- 11.2 – Muscles and Movement
- 11.3 – The Kidney
- 11.4 – Reproduction
- The Menstrual Cycle
Options Revision Notes:
- Option D.1 – Origin of Life on Earth
- Option D.2 – Species and Speciation
- Option D.3 – Human Evolution
- Option E.1 – Stimulus and Response
- Option E.2 – Perception of Stimuli
- Option E.3 – Innate and Learned Behaviour
- Option E.4 – Neurotransmitters and Synapses
- Option E.5 – The Human Brain
- Option E.6 – Further Studies of Behaviour
- Option G.1 – Community Ecology
- Option G.2 – Ecosystems and Biomes
- Option G.3 – Impact of Humans on Ecosystems
- Option G.4 – Conservation of Biodiversity
- Option G.5 – Population Ecology
