Edexcel International A Level Biology Lessons
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1Molecules, Transport and Health10 subtopics
- 1.1–2Water and carbohydrates
- 1.4Condensation, hydrolysis and glycosidic bonds
- 1.5Lipids
- 1.6–7Mass transport and blood vessels
- 1.8The mammalian heart and cardiac cycle
- 1.9Haemoglobin and oxygen transport
- 1.10–11Atherosclerosis and blood clotting
- 1.12–13Risk factors for cardiovascular disease
- 1.15–17Interpreting health data and risk perception
- 1.19–20Reducing CVD risk and treatments
2Membranes, Proteins, DNA and Gene Expression11 subtopics
- 2.1Gas exchange surfaces and the lung
- 2.2Cell membrane structure
- 2.4–5Transport across membranes and osmosis
- 2.6Amino acids and protein structure
- 2.7–8Enzymes
- 2.9Structure of DNA and RNA
- 2.10DNA replication
- 2.11–13The genetic code and protein synthesis
- 2.14Gene mutations
- 2.15Monohybrid inheritance and sex linkage
- 2.16–18Cystic fibrosis and genetic screening
3Cell Structure, Reproduction and Development8 subtopics
4Plant Structure and Function, Biodiversity and Conservation9 subtopics
- 4.1–2Plant cell structure
- 4.3–4Starch, cellulose and plant fibres
- 4.5Xylem, phloem and sclerenchyma
- 4.8Plant mineral requirements
- 4.11–13Plant-derived antimicrobials and drug testing
- 4.14Classification and the three-domain system
- 4.15–18Biodiversity and its measurement
- 4.19Niche and adaptation
- 4.20–21Allele frequency, speciation and conservation
5Energy Flow, Ecosystems and the Environment10 subtopics
- 5.1–2Overview of photosynthesis and ATP
- 5.3Light-dependent reactions
- 5.4Light-independent reactions and the Calvin cycle
- 5.5–8Chloroplasts, pigments and limiting factors
- 5.9–10Productivity and energy transfer
- 5.11–14Populations, habitats and ecological study
- 5.15Succession
- 5.16–18Evidence for climate change and its causes
- 5.19–22Effects of climate change and modelling
- 5.23–26Evolution, speciation and conservation conflicts
6Microbiology, Immunity and Forensics9 subtopics
- 6.1–4Culturing microorganisms and measuring growth
- 6.5–6Bacteria, viruses and infection
- 6.7–8Barriers and non-specific defences
- 6.9–10Specific immune response
- 6.11–12Immunity and the evolutionary race
- 6.13–15Antibiotics and infection control
- 6.16Decomposition and carbon recycling
- 6.17–19PCR, gel electrophoresis and DNA profiling
- 6.20Forensic estimation of time of death
7Respiration, Muscles and the Internal Environment11 subtopics
- 7.1–2Overview of respiration and glycolysis
- 7.3Link reaction and Krebs cycle
- 7.4–8Oxidative phosphorylation and respiratory quotient
- 7.9–10Skeletal muscle and movement
- 7.11Muscle contraction
- 7.12Control of the heartbeat and ECGs
- 7.13–15Cardiac output, ventilation and exercise
- 7.16–17Homeostasis and feedback
- 7.18–20The kidney and urea removal
- 7.21Osmoregulation and ADH
- 7.22Hormones and gene expression
8Coordination, Response and Gene Technology10 subtopics
- 8.1–3Neurones and the reflex arc
- 8.4–5Action potentials and saltatory conduction
- 8.6Synapses and the pupil reflex
- 8.7Drugs and synaptic transmission
- 8.8Photoreception in rod cells
- 8.9–10Habituation and the nervous system
- 8.11–12Plant responses and plant hormones
- 8.14–15The human brain and imaging
- 8.17–19Genetically modified organisms and recombinant DNA
- 8.20–22Microarrays, bioinformatics and GMO risks and benefits