Biology HL
Chapter Simulation Registry
The complete IB Biology HL path, including shared SL/HL material and every additional higher level extension.
Chapter 1: Elements, Molecules and Water
Begin molecular biology with the elements shared by living systems, the dose-dependent roles of trace elements, and the molecular explanation for water's life-supporting properties.
3 simulation entries
Open chapter simulationsChapter 2: Metabolism, Respiration and Photosynthesis
Follow energy and matter through enzyme-controlled pathways, ATP production in respiration, and carbon fixation in photosynthesis—from active-site collisions to chemiosmotic membranes.
3 simulation entries
Open chapter simulationsChapter 3: DNA and Protein Synthesis
Follow genetic information from faithful DNA copying through transcription, RNA processing and translation, then investigate mutation, gene editing and epigenetic control.
1 simulation entries
Open chapter simulationsChapter 4: Genetics
Connect chromosome organization to inheritance, predict simple and complex crosses, infer family genotypes, and test linkage models with recombination and chi-squared evidence.
1 simulation entries
Open chapter simulationsChapter 5: Cell Structure
Build cell biology from origin-of-life evidence through prokaryotic and eukaryotic organization, endosymbiosis, microscopy, viruses and rapid viral evolution.
1 simulation entries
Open chapter simulationsChapter 6: Cell Function
Explain how membranes control exchange, organelles coordinate cellular work, geometry constrains size, and cell division preserves or reshuffles genetic information.
1 simulation entries
Open chapter simulationsChapter 7: Cell Control and Communication
Explain how cells detect, transmit and integrate information through receptors, neurons, synapses, hormones, feedback systems and plant growth regulators.
1 simulation entries
Open chapter simulationsChapter 8: Physiology
Build a connected account of multicellular organization, animal and plant transport, gas exchange, reproduction and homeostasis through structure, gradients and feedback.
1 simulation entries
Open chapter simulationsChapter 9: Coordination, Muscles and Motility
Connect nervous coordination to reflexes, enteric movement, skeletons and joints, sliding-filament contraction, motor-unit recruitment and whole-animal locomotion.
1 simulation entries
Open chapter simulationsChapter 10: Defence against Disease
Build disease defence from skin and clotting through innate and adaptive immunity, then connect HIV, antibiotics, zoonoses, allergy and vaccination to population health.
1 simulation entries
Open chapter simulationsChapter 11: Evolution, Speciation and Ecosystems
Reconstruct ancestry with classification and cladistics, model how gene pools evolve and split, and connect adaptation, niches and competition to biodiversity.
1 simulation entries
Open chapter simulationsChapter 12: Ecological Relationships
Trace nutrition, energy, matter and population change through ecosystems, then evaluate succession, biodiversity loss, conservation and climate-driven disruption.
1 simulation entries
Open chapter simulations