Explore
GCSEWJEC
Biology
Exam Questions
Animal and plant cells: structures and functionsNewUsing a light microscope and drawing cells (required practical)NewSpecialised cells, tissues, organs and organ systemsNewDiffusion and factors affecting diffusionNewOsmosis in cells (including turgor and plasmolysis)NewActive transport and why cells need itNewEnzymes as biological catalystsNewFactors affecting enzyme activity (temperature, pH, concentration)NewInvestigating enzyme action (required practical)New
Aerobic respiration: word and symbol equationsNewAnaerobic respiration in animals (lactic acid)NewAnaerobic respiration in plants and microorganisms (fermentation)NewThe human respiratory system (airways to alveoli)NewVentilation: breathing in and out (mechanics)NewGas exchange at the alveoli (adaptations + diffusion)NewComparing inspired and expired airNewSmoking and lung disease (tar, nicotine, carbon monoxide)New
Why we need digestion (large to small soluble molecules)NewNutrients and a balanced dietNewFood tests (starch, sugars, protein, lipids)NewThe digestive system: organs and their functionsNewDigestive enzymes (carbohydrase, protease, lipase)NewBile and emulsificationNewAbsorption in the small intestine (villi)NewThe products of digestion and how they’re usedNewInvestigating the energy content of foods (required practical)New
The heart: structure, valves and blood flowNewDouble circulation and why it’s efficientNewBlood vessels: arteries, veins and capillariesNewBlood components and their functionsNewExchange at capillaries and in tissuesNewCardiovascular disease and risk factorsNewTreatments for cardiovascular disease (stents, statins, transplants)NewEvaluating lifestyle changes and medical treatmentsNew
Plant organs and tissues (including xylem and phloem)NewPhotosynthesis: equation, chloroplasts and limiting factorsNewHow plants use glucose (storage and making new materials)NewInvestigating factors affecting photosynthesis (required practical)NewTranspiration and stomataNewTransport in plants: the transpiration streamNewFactors affecting transpiration (required practical)NewMineral ions and deficiency symptoms (N, P, K)NewUsing fertilisers (NPK) and impacts on growthNew
Food chains, food webs and trophic levelsNewPyramids of numbers and pyramids of biomassNewEnergy transfers and efficiency between trophic levelsNewDecomposition and the role of micro-organismsNewThe carbon cycleNewThe nitrogen cycle (including soil bacteria)NewSampling: quadrats, transects and random samplingNewCapture–recapture and estimating population sizeNewInvestigating distribution and abundance (required practical)NewHuman impacts: pollution, eutrophication, indicator species, intensive farmingNew
Why classification is needed (species and biodiversity)NewThe five kingdoms and key characteristicsNewUsing classification keysNewAdaptations: structural, behavioural and functionalNewCompetition and interactions in ecosystemsNewBiodiversity and why it mattersNewMeasuring biodiversity (sampling methods)NewCapture–recapture in practiceNewBiological control and introduced species risksNew
The cell cycle and why cells divideNewMitosis: what happens and what it producesNewGrowth, repair and differentiationNewCancer and uncontrolled cell divisionNewStem cells: embryonic vs adultNewUses of stem cells in medicineNewRisks, ethics and regulation of stem cell researchNewTissue rejection and the need for matchingNew
DNA, genes and chromosomesNewAlleles, genotype and phenotypeNewVariation: inherited vs environmental causesNewMonohybrid inheritance and Punnett squaresNewDominant and recessive genetic disordersNewSex determination and inheritance patternsNewMutations: causes and consequencesNewUsing genetic evidence in medicine and societyNew
Types of variation: continuous vs discontinuousNewMeasuring variation in a populationNewInvestigating variation in organisms (required practical)NewNatural selection and adaptationNewSpeciation and extinctionNewEvolution in action: resistance in bacteria and pestsNewHuman evolution and evidence from fossils/DNANewThe human genome and why it matters for medicineNew
The nervous system: receptors, coordinators and effectorsNewReflex actions and reflex arcsNewThe eye: structure and functionNewHormones and the endocrine systemNewBlood glucose control (insulin and glucagon)NewTemperature regulation and negative feedbackNewDrugs and alcohol: effects on body processesNewPlant hormones and tropisms (phototropism and gravitropism)NewInvestigating reaction time (required practical)New
Excretion and the urinary systemNewKidney structure and the nephronNewFiltration at the glomerulusNewSelective reabsorption and urine formationNewOsmoregulation and the role of ADHNewTesting urine for glucose and protein (required practical)NewDialysis: how it works and limitationsNewKidney transplants: tissue typing and rejectionNew
Micro-organisms: useful vs harmfulNewAseptic technique and safe culturingNewFactors affecting microbial growthNewTemperature control in food storageNewAntibiotics: what they do (and don’t do)NewInvestigating antibiotics on bacterial growth (required practical)NewIndustrial fermentation and bioreactorsNewPenicillium and producing penicillinNew
Health and disease: communicable vs non-communicableNewPathogens and how diseases spreadNewHIV/AIDS, chlamydia and malaria (cause, effects, prevention)NewPhysical and chemical barriers (skin, mucus, stomach acid)NewImmune response: phagocytes, antibodies and antitoxinsNewVaccination and herd immunityNewAntibiotics, antivirals and resistanceNewDeveloping new medicines: testing and clinical trialsNewEvaluating risk, evidence and vaccination decisionsNew
Planning investigations: variables, hypotheses and method designNewRisk assessment and safe practical workNewCollecting results: accuracy, precision and repeatabilityNewPresenting data: tables, graphs and unitsNewAnalysing data: means, rates, % change and drawing conclusionsNewEvaluating methods and improving reliabilityNewPreparing for the WJEC practical task formatNew
