Edexcel A-Level Biology B Lessons
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2Cells, viruses and reproduction of living things6 subtopics
3Classification and biodiversity3 subtopics
4Exchange and transport9 subtopics
- 4.1Surface area to volume ratio
- 4.2Cell membranes and passive transport
- 4.2Active transport, vesicles and ATP
- 4.3Gas exchange in animals and plants
- 4.4The heart and mammalian circulation
- 4.4Blood, clotting and atherosclerosis
- 4.5Transport of gases in the blood
- 4.6Tissue fluid and the lymph system
- 4.7Transport in plants
7Modern genetics4 subtopics
8Origins of genetic variation3 subtopics
9Control systems10 subtopics
- 9.1Homeostasis and feedback
- 9.2Chemical control in mammals
- 9.3Chemical control in plants
- 9.4Structure of the mammalian nervous system
- 9.5Nerve impulses and synapses
- 9.6Drugs and the nervous system
- 9.7Detection of light by mammals
- 9.8Control of heart rate
- 9.9The kidney and osmoregulation
- 9.9Temperature regulation