Spec 1BI0
Step-by-step Edexcel GCSE Biology lessons by topic, building up to exam-style questions. Start with the foundational topics and build up to the higher-tier material.
1 Key concepts in biology
1.1 Cells and cell structure
1.2 Number, size and scale
1.3 Enzymes
1.4 Transport across cell membranes
2 Cells and control
2.1 Cell division and growth
2.2 Stem cells
2.3 The nervous system and brain
2.4 The eye
3 Genetics
3.1 Reproduction and meiosis
3.2 DNA and protein synthesis
3.3 Inheritance
3.4 Variation and the Human Genome Project
4 Natural selection and genetic modification
4.1 Evolution and natural selection
4.2 Evidence for evolution and classification
4.3 Selective breeding and genetic modification
5 Health, disease and the development of medicines
5.1 Health and communicable disease
5.2 Plant and body defences
5.3 Immune system and medicines
5.4 Non-communicable diseases
6 Plant structures and their functions
6.1 Photosynthesis
6.2 Transport in plants
6.3 Plant hormones
7 Animal coordination, control and homeostasis
7.1 Hormones and coordination
7.2 Reproductive hormones
7.3 Homeostasis and thermoregulation
7.4 Blood glucose and the urinary system
8 Exchange and transport in animals
8.1 Exchange surfaces and diffusion
8.2 Blood and circulation
8.3 Respiration
9 Ecosystems and material cycles
9.1 Ecosystems and interdependence
9.2 Energy transfer and biodiversity
9.3 Material cycles and decomposition
