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GCSEAQA

Combined Science

Exam Questions

Eukaryotes and ProkaryotesNew Animal and Plant CellsNew Sub-Cellular StructuresNew Cell SpecialisationNew Cell DifferentiationNew Light vs Electron MicroscopyNew Magnification CalculationsNew Chromosomes, DNA and GenesNew Mitosis and the Cell CycleNew Stem Cells and MeristemsNew Therapeutic CloningNew Stem Cell Risks and EthicsNew DiffusionNew OsmosisNew Active TransportNew Surface Area to Volume RatioNew Exchange SurfacesNew

Pathogens and TransmissionNew Communicable Disease ControlNew Viral Diseases: Measles, HIV, TMVNew Bacterial Diseases: Salmonella, GonorrhoeaNew Fungal Diseases: Rose Black SpotNew Protist Diseases: MalariaNew Body Barriers and DefencesNew White Blood Cells and PhagocytosisNew Antibodies and AntitoxinsNew Vaccination and Herd ImmunityNew Antibiotics and ResistanceNew Painkillers and Symptom ReliefNew Drug Discovery and DevelopmentNew Preclinical and Clinical TrialsNew Placebos and Double-Blind TrialsNew

Photosynthesis EquationNew Photosynthesis as EndothermicNew Limiting FactorsNew Rate of Photosynthesis GraphsNew Uses of Glucose in PlantsNew Aerobic Respiration EquationNew Anaerobic Respiration in MusclesNew Fermentation in YeastNew Exercise ResponsesNew Oxygen Debt and Lactic AcidNew Metabolism OverviewNew Protein Breakdown to UreaNew

Homeostasis and Control SystemsNew Receptors, Coordination Centres, EffectorsNew Nervous System OrganisationNew Reflex Arc ComponentsNew SynapsesNew Reaction TimeNew Brain Structure and FunctionNew The Eye and VisionNew ThermoregulationNew Blood Glucose ControlNew Diabetes (Type 1 and Type 2)New Hormones and Endocrine SystemNew Adrenaline and “Fight or Flight”New Menstrual Cycle HormonesNew Contraception MethodsNew Fertility TreatmentsNew Plant HormonesNew TropismsNew

Ecosystems and CommunitiesNew Abiotic and Biotic FactorsNew AdaptationsNew Sampling: Quadrat and TransectsNew InterdependenceNew Food Chains and Food WebsNew Trophic Levels and BiomassNew Pyramids of BiomassNew DecompositionNew Microorganisms and DecayNew Carbon CycleNew Water CycleNew Material CyclesNew Biodiversity and Human ImpactsNew Land Use and DeforestationNew Global Warming and Climate ChangeNew Pollution and Waste ManagementNew Maintaining BiodiversityNew

Atoms, Elements and CompoundsNew Mixtures and Separation TechniquesNew History of the AtomNew Subatomic ParticlesNew Electronic Charge and MassNew Atomic Number and Mass NumberNew IsotopesNew Size and Mass of AtomsNew Relative Atomic MassNew Electronic StructureNew Periodic Table ArrangementNew Development of the Periodic TableNew Metals vs Non-MetalsNew Group 0: Noble GasesNew Group 1: Alkali MetalsNew Group 7: HalogensNew Transition Metals PropertiesNew

Ionic Bonding and IonsNew Covalent BondingNew Metallic BondingNew States of Matter and Particle ModelNew Chemical vs Physical ChangesNew NanoparticlesNew Giant Ionic StructuresNew Simple Molecular SubstancesNew Giant Covalent StructuresNew Graphite and GrapheneNew DiamondNew FullerenesNew PolymersNew Allotropes of CarbonNew Properties and Bonding LinksNew Melting and Boiling PointsNew Electrical ConductivityNew DensityNew

Conservation of MassNew Relative Formula MassNew Moles and Amount of SubstanceNew Using Balanced EquationsNew Limiting ReactantsNew Concentration CalculationsNew Gas Volumes in ReactionsNew Percentage YieldNew Atom EconomyNew

Reactivity SeriesNew Metal Extraction (Reduction)New Oxidation and ReductionNew Acids, Alkalis and pHNew Strong vs Weak AcidsNew NeutralisationNew Making SaltsNew Electrolysis BasicsNew Electrolysis of Molten Ionic CompoundsNew Electrolysis of Aqueous SolutionsNew

Exothermic and Endothermic ReactionsNew Reaction ProfilesNew Activation EnergyNew Bond EnergiesNew Energy Transfer in ReactionsNew

Reaction Rate MeasurementNew Factors Affecting RateNew Collision TheoryNew CatalystsNew Reversible ReactionsNew Dynamic EquilibriumNew Le Chatelier’s PrincipleNew

Crude Oil and HydrocarbonsNew Fractional DistillationNew AlkanesNew AlkenesNew CrackingNew PolymerisationNew Combustion of HydrocarbonsNew Ethanol Production (Fermentation)New Ethanol Production (Hydration)New

Pure Substances and MixturesNew FormulationsNew ChromatographyNew Identifying GasesNew Flame TestsNew Metal Hydroxide Precipitation TestsNew Sulfate, Carbonate and Halide TestsNew Instrumental Analysis (Flame Emission)New

Evolution of Earth’s AtmosphereNew Atmospheric CompositionNew Greenhouse EffectNew Global Climate Change EvidenceNew Carbon FootprintNew Pollutants and ParticulatesNew Acid Rain and Sulfur DioxideNew Nitrogen Oxides and SmogNew

Earth’s Resources and SustainabilityNew Potable WaterNew Waste Water TreatmentNew Life Cycle AssessmentsNew Reduce, Reuse, RecycleNew Corrosion and RustingNew Preventing CorrosionNew AlloysNew Ceramics, Polymers and CompositesNew Haber Process and FertilisersNew NPK FertilisersNew

Energy StoresNew Energy TransfersNew Conservation of EnergyNew Work DoneNew PowerNew EfficiencyNew Dissipation and Useful EnergyNew Energy and Temperature ChangesNew Thermal Insulation in BuildingsNew Heating and Cooling CurvesNew Non-Renewable Energy ResourcesNew Renewable Energy ResourcesNew National Grid and DemandNew

Electric Charge and CurrentNew Potential DifferenceNew ResistanceNew Series CircuitsNew Parallel CircuitsNew I–V CharacteristicsNew LDRs and ThermistorsNew Electrical PowerNew Electrical Energy in CircuitsNew Mains Electricity and SafetyNew Static ElectricityNew

DensityNew States of MatterNew Internal EnergyNew Heating and CoolingNew Changes of StateNew Specific Heat CapacityNew Latent HeatNew Particle Model and PressureNew Gas Pressure and TemperatureNew

Development of the Atomic ModelNew Nuclear StructureNew IsotopesNew Radioactive DecayNew Alpha, Beta and Gamma RadiationNew Half-LifeNew Uses of Nuclear RadiationNew Background RadiationNew Contamination vs IrradiationNew Radiation Hazards and RiskNew Nuclear FissionNew Nuclear FusionNew

Scalars and VectorsNew Contact and Non-Contact ForcesNew Resultant ForcesNew Motion GraphsNew Newton’s LawsNew Stopping DistanceNew MomentumNew Impact Forces and SafetyNew Work Done and Force–DistanceNew MomentsNew Levers and GearsNew Pressure in FluidsNew Upthrust and FloatingNew Elasticity and Hooke’s LawNew Springs and ExtensionNew

Wave Types: Transverse and LongitudinalNew Wave Speed EquationNew Frequency, Wavelength, PeriodNew ReflectionNew RefractionNew DiffractionNew Sound WavesNew UltrasoundNew Seismic WavesNew Electromagnetic SpectrumNew EM Waves and UsesNew Ionising vs Non-Ionising RadiationNew Lenses and Image FormationNew

Permanent and Induced MagnetismNew Magnetic FieldsNew ElectromagnetsNew Motor EffectNew LoudspeakersNew Electromagnetic InductionNew Generators and DynamosNew TransformersNew National Grid and TransformersNew

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