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IGCSEEdexcel
Biology
Exam Questions
Characteristics of living thingsNewNutrition, respiration and excretion as life processesNewSensitivity, movement, growth and reproductionNewEukaryotes: plants and animalsNewEukaryotes: fungi and protoctistsNewProkaryotes: bacteria and their key featuresNewViruses and why they are not livingNewPathogens and examples of disease-causing organismsNew
Levels of organisation: organelles to organ systemsNewCells: structures, functions, and plant vs animal cellsNewCell differentiation and stem cells in medicineNewBiological molecules in food (carbohydrates, lipids, proteins)NewCore Practical: Food tests for glucose, starch, protein and fatNewEnzymes: active sites, catalysis and denaturationNewCore Practical: Enzyme activity (temperature and pH)NewMovement across membranes: diffusion, osmosis and active transportNewPhotosynthesis and mineral ions for plant growthNewHuman nutrition, digestion and absorptionNew
Why multicellular organisms need transport systemsNewTransport in plants: xylem, phloem and translocationNewTranspiration: water uptake, evaporation and factors affecting rateNewCore Practical: Measuring transpiration rateNewBlood: components and what plasma transportsNewImmunity: phagocytosis, antibodies, vaccination and blood clottingNewThe heart: structure, function and changing heart rateNewBlood vessels and the circulation systemNewExcretion and osmoregulation: urinary system and kidney functionNewCoordination and response: nervous system, reflexes, the eye and hormonesNew
Sexual vs asexual reproduction and fertilisationNewPollination: insect vs wind pollinationNewFertilisation in plants: pollen tubes, seeds and fruitsNewCore Practical: Conditions needed for seed germinationNewGermination and early seedling growthNewAsexual reproduction in plants (runners and cuttings)NewHuman reproductive systems and gametesNewThe menstrual cycle and hormonesNewPregnancy: placenta, amniotic fluid and embryo developmentNewInheritance and evolution: DNA, genes, variation, mutation and natural selectionNew
Ecosystems: populations, communities, habitats and ecosystemsNewCore Practical: Estimating population size using quadratsNewBiodiversity and why it mattersNewCore Practical: Measuring distribution and biodiversity with quadratsNewAbiotic and biotic factors affecting distributionNewTrophic levels: producers, consumers and decomposersNewFood chains and food websNewPyramids of number, biomass and energyNewEnergy transfer through ecosystemsNewCycles and human impacts (carbon cycle, pollution, climate change)New
Increasing crop yield: glasshouses, CO₂, temperature and fertilisersNewPest control: pesticides vs biological controlNewMicroorganisms in food production (bread and yoghurt)NewCore Practical: Anaerobic respiration in yeastNewIndustrial fermenters and aseptic techniqueNewFish farming for food productionNewSelective breeding in plants and animalsNewGenetic engineering: tools and processesNewGenetic engineering examples (insulin, GM crops)NewCloning: micropropagation and cloning animalsNew
