Biology › Revision posters

Revision posters

One page per topic: the diagrams, the processes and the handful of points worth remembering. Made to be printed, put on a wall, or saved to a phone. Click a poster to open it full size, or download it to keep; the title goes to the lesson it came from.

Scientific method and quantitative biology

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  Variables and controls: what an experiment can showDownload
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  Handling data: units, scales, rates and uncertaintyDownload
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  Averages, spread and the null hypothesisDownload
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  Choosing, carrying out and concluding a statistical testDownload

Cells, microscopy and biological organisation

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  Eukaryotic cell structure and organellesDownload
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  Microscopy, magnification and resolutionDownload
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  Prokaryotic cells and virusesDownload
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  Cell specialisation and biological organisationDownload
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  Plan diagrams and tissue sectionsDownload

Biological molecules, water and inorganic ions

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  Carbohydrate structure and functionDownload
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  Lipids: triglycerides, phospholipids and ester bondsDownload
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  Water and inorganic ionsDownload
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  Protein structure and functionDownload

Enzymes and metabolic control

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  Enzyme action and specificityDownload
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  Factors affecting enzyme rate: temperature, pH and concentrationDownload
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  Enzyme inhibition and metabolic controlDownload
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  Cofactors, coenzymes and where enzymes workDownload

Membranes and transport across cells

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  Membrane structure and the fluid mosaic modelDownload
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  Diffusion and osmosisDownload
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  Active transport, co-transport and bulk transportDownload

Nucleic acids, genomes and protein synthesis

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  DNA and RNA structureDownload
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  DNA replicationDownload
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  The genetic code and transcriptionDownload
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  Translation and protein synthesisDownload

Cell cycles, reproduction and development

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  The cell cycle and mitosisDownload
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  Stem cells and cell potencyDownload
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  Gametes, fertilisation and early developmentDownload
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  Homeobox genes, Hox genes and apoptosisDownload
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  Cloning in plants and animalsDownload

Exchange surfaces and gas exchange

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  Surface area to volume ratio: why size limits diffusionDownload
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  Gas exchange in mammals: lungs and ventilationDownload
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  Gas exchange in insects, fish and plantsDownload

Plant transport and mineral nutrition

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  Xylem and the transpiration streamDownload
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  Transpiration and stomatal controlDownload
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  Phloem translocation and the mass-flow hypothesisDownload

Animal transport and cardiovascular biology

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  The heart and cardiac cycleDownload
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  Blood vessels, tissue fluid and lymphDownload
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  Haemoglobin and oxygen dissociation curvesDownload

Nutrition, digestion and health evidence

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  Digestion and absorption in the human gutDownload
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  Diet, energy and how to read a health claimDownload
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  Cholesterol, atheroma and what a risk factor meansDownload

Pathogens, disease and immunity

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  Pathogens and non-specific defencesDownload
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  The specific immune responseDownload
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  Antibodies, vaccination and the four kinds of immunityDownload
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  Infectious disease: transmission and controlDownload
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  Plant disease and plant defencesDownload

Respiration and cellular energy

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  Glycolysis, ATP and the link reactionDownload
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  The Krebs cycle and oxidative phosphorylationDownload
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  Anaerobic respiration and the respiratory quotientDownload

Photosynthesis and primary productivity

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  Chloroplast structure and the light-dependent reactionsDownload
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  The Calvin cycleDownload
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  Limiting factors and primary productivityDownload

Nervous coordination, receptors, muscles and behaviour

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  Organisation of the nervous systemDownload
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  Receptors: transduction and the reflex arcDownload
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  The action potential and its propagationDownload
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  The synapse: transmission, and why it runs one wayDownload
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  Muscles and movement: the sliding-filament modelDownload

Hormonal communication, plant responses and homeostasis

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  Hormonal communication and negative feedbackDownload
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  Regulation of blood glucose and diabetes mellitusDownload
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  Osmoregulation and kidney functionDownload
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  The liver: detoxification, deamination and the making of ureaDownload
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  Thermoregulation in endotherms and ectothermsDownload
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  Plant responses: tropisms, auxins and the classic experimentsDownload

Inheritance and population genetics

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  Meiosis and the sources of genetic variationDownload
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  Monohybrid inheritance and genetic diagramsDownload
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  Dihybrid inheritance, linkage, epistasis and the chi-squared testDownload
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  Population genetics and Hardy-Weinberg equilibriumDownload

Gene regulation, genomics and biotechnology

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  Control of gene expressionDownload
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  Mutation, gene expression and cancerDownload
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  Recombinant DNA technologyDownload
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  Genome analysis, genetic screening and gene therapyDownload
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  Industrial biotechnology and fermentationDownload
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  Pharming, recombinant medicines and synthetic biologyDownload

Classification, biodiversity and conservation

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  Classification, phylogeny and molecular evidenceDownload
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  The five kingdoms, species concepts and virusesDownload
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  Measuring biodiversityDownload
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  Conservation in situ and ex situDownload

Evolution and speciation

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  Natural selection: variation, selection and allele frequencyDownload
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  Evidence for evolution, resistance and genetic driftDownload
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  Speciation and reproductive isolationDownload
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  Continuous and discontinuous variationDownload
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  Artificial selection and selective breedingDownload

Ecology, populations and environmental change

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  Populations and their limitsDownload
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  Nutrient cycles: nitrogen, phosphorus and eutrophicationDownload
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  Succession and environmental changeDownload
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  The carbon cycle and climate changeDownload
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  Managing ecosystems sustainablyDownload

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