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What's covered, in curriculum order. Titles and summaries are free to browse; the full section, with worked examples, unlocks with a free account.
1. Cell Division
Why cells divide, its role in growth and repair, and what happens when cell division goes wrong.
2. DNA, Genes and Chromosomes
How genetic information is organised and stored inside a cell, and passed from parents to offspring.
3. Enzymes, Microorganisms & Genetic Engineering
How enzymes speed up reactions, how microorganisms and cells are put to use commercially and medically, and how genetic engineering produces therapeutic proteins.
4. Photosynthesis & Respiration
How plants make glucose, what limits how fast they can do it, and how cells release energy from glucose with and without oxygen.
6. Reproduction & Growing Plants
Sexual versus asexual reproduction, and the different methods used to propagate plants.
8. Growth & Genetic Information
How different organisms grow and develop, how genetic information passes between generations, and basic monohybrid crosses.
9. Maintaining Stable Body Conditions
How the body detects and responds to internal and external changes to keep body temperature and blood glucose stable.
10. Interdependence & Biodiversity
How species depend on each other, and the human activities and natural hazards that threaten biodiversity.
11. The Nitrogen Cycle & Fertilisers
Why nitrogen must be cycled through ecosystems, how fertilisers are designed, and their environmental trade-offs.
12. Adaptation & Behaviour for Survival
Structural, physiological, and behavioural adaptations, and learned behaviours that help a species survive.
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