Put These Notes into Practice
Reading the notes is a great start. Now practise with unlimited AI-generated questions and get instant feedback. 100,000+ students are already improving their grades.
Biology (9610)
7 sections available · 45 chapters available
Free Biology (9610) revision notes for Oxford AQA International AS Level students. Each chapter covers a key topic with worked examples and practice prompts you can take straight into the thinka app.
The diversity of living organisms
Biological systems and disease
Unit 1: The diversity of living organisms
Biological molecules
Cells and cell structure
Biochemical reactions in cells are controlled by enzymes
Transport into and out of cells
Gas exchange and the transport of oxygen in living organisms
Living organisms vary
DNA, genes and chromosomes
Protein synthesis
Genetic diversity may arise by meiosis
Species and taxonomy
Biodiversity within a community
Populations and genes
The effect of biotic and abiotic factors on populations
Photosynthesis
Respiration
Energy transfer through ecosystems
Nutrient cycles
Inheritance
Allele frequencies in populations
Evolution may lead to speciation
Unit 2: Biological systems and disease
The causes of disease: pathogens, lifestyle and genes
Digestion and absorption
Cholera
HIV as an example of a human disease caused by a virus
The defensive functions of mammalian blood
The circulation of blood and the structure of the mammalian heart
Heart disease may be associated with specific risk factors
Mass transport systems in plants
The role of aphids in spreading plant viruses
Cells divide by binary fission and mitosis
Mutation and cancer
Practical and mathematical skills
Planning experiments and controlling variables
Required practicals 1-3: enzymes, osmosis and chromatography
Required practicals 4-6: root tip squashes, heart rate and the potometer
Recording, processing and presenting data
Evaluating procedures and interpreting specimen results
Control
Control systems involve stimulus and response
Receptors
Nerve impulses and synaptic transmission
Skeletal muscles as effectors
Control systems in plants
Homeostasis and negative feedback
Hormones and the control of blood glucose concentration
Control of heart rate
Regulation of transcription and translation
Recombinant DNA technology
Done reading? Test yourself with AI practice questions
Practise This Topic Now