Questions: Science Essentials: biology practice exam C
New numbers every time.
About this practice exam
- Active transportChoose, 1 mark, Plus
- Labelling a bacterial cellChoose, 1 mark, Plus
- What happens in each stage of the cell cycleChoose, 1 mark, Plus
- DifferentiationChoose, 1 mark, Plus
- What changes the rate of diffusionChoose, 1 mark, Plus
- The order of events in the cell cycleChoose, 1 mark, Plus
- Chromosomes and why cells divideChoose, 1 mark, Plus
- What each part of a cell doesChoose, 1 mark, Plus
- Predicting osmosisChoose, 1 mark, Plus
- Required practical: osmosis variables and techniqueChoose, 1 mark, Plus
- Plant, animal and bacterial cellsChoose, 1 mark, Plus
- Prokaryotic and eukaryotic cellsChoose, 1 mark, Plus
- Resolution and electron microscopesChoose, 1 mark, Plus
- Required practical: putting a slide method in orderChoose, 1 mark, Plus
- Required practical: microscope techniqueChoose, 1 mark, Plus
- Adaptations of specialised cellsChoose, 1 mark, Plus
- Types of stem cellChoose, 1 mark, Plus
- Using stem cellsChoose, 1 mark, Plus
- Millimetres, micrometres and nanometresCalculate, 1 mark, Plus
- Diffusion, osmosis or active transportChoose, 1 mark, Plus
- Define the terms for specialised and stem cellsDefine, 3 marks, Plus
- Define the transport termsDefine, 3 marks, Plus
- Percentage of cells in each stageCalculate, 3 marks, Plus
- Time spent in each stage of the cycleCalculate, 3 marks, Plus
- How many divisions, and how longCalculate, 3 marks, Plus
- Real size from magnificationCalculate, 3 marks, Plus
- Total magnification and the field of viewCalculate, 3 marks, Plus
- Required practical: reading the osmosis graphDetermine, 3 marks, Plus
- Required practical: osmosis results tableComplete, 3 marks, Plus
- Required practical: estimating cell size from the field of viewEstimate, 3 marks, Plus
- How many times bigger: orders of magnitudeCalculate, 3 marks, Plus
- Comparing two kinds of cellCompare, 4 marks, Plus
- Real size in metres in standard formCalculate, 4 marks, Plus
- Comparing surface area to volume ratiosCalculate, 4 marks, Plus
- Surface area to volume ratio of a cubeCalculate, 4 marks, Plus
- Using a scale barCalculate, 4 marks, Plus
- Is it active transport?Justify, 6 marks, Plus
- Parts of a cell and how cells differIdentify, 6 marks, Plus
- Light and electron microscopes comparedCompare, 6 marks, Plus
- A micrograph and its scale bar, in standard formDeduce, 6 marks, Plus
- Chromosomes through mitosisPredict, 6 marks, Plus
- Therapeutic cloning to treat a patient (6 marks)Discuss, 6 marks, Plus
- Diffusion, osmosis and active transport compared (6 marks)Compare, 6 marks, Plus
- Plan: the osmosis practical (6 marks)Describe, 6 marks, Plus
- Using embryonic stem cells to treat a disease (6 marks)Evaluate, 6 marks, Plus
- Plan: preparing and viewing a slide of cells (6 marks)Describe, 6 marks, Plus
- Muscle fatigueChoose, 1 mark, Plus
- Why heart and breathing rates riseChoose, 1 mark, Plus
- Metabolic reactions: building and breaking downChoose, 1 mark, Plus
- What metabolism isChoose, 1 mark, Plus
- The liver and lactic acidChoose, 1 mark, Plus, Higher tier
- How a respirometer worksChoose, 1 mark, Plus
- Light, chlorophyll and an endothermic reactionChoose, 1 mark, Plus
- What a plant does with its glucoseChoose, 1 mark, Plus
- The balanced symbol equation for photosynthesisChoose, 1 mark, Plus
- The photosynthesis word equationChoose, 1 mark, Plus
- Aerobic and anaerobic respiration comparedChoose, 1 mark, Plus
- Plants respire tooChoose, 1 mark, Plus
- The balanced symbol equation for aerobic respirationChoose, 1 mark, Plus
- Respiration is exothermic: what the energy is forChoose, 1 mark, Plus
- Respiration word equationsChoose, 1 mark, Plus
- Fermentation and its usesChoose, 1 mark, Plus
- The pondweed practical: variables and controlChoose, 1 mark, Plus
- Anaerobic respiration in musclesChoose, 1 mark, Plus
- Oxygen debt and the liverChoose, 1 mark, Plus, Higher tier
- Building and breaking down in metabolismIdentify, 1 mark, Plus
- Define the terms for respiration and photosynthesisDefine, 3 marks, Plus
- Heart rate before, during and after exerciseDetermine, 3 marks, Plus
- Mean and range of breathing ratesCalculate, 3 marks, Plus
- Percentage increase in heart or breathing rateCalculate, 3 marks, Plus
- Respirometer: volume of oxygen per minuteCalculate, 3 marks, Plus
- Why a plant needs lightExplain, 3 marks, Plus
- Why muscles respire anaerobicallyExplain, 3 marks, Plus
- The inverse square law for lightCalculate, 3 marks, Plus, Higher tier
- Relative light intensity from distanceComplete, 3 marks, Plus, Higher tier
- Rate of oxygen productionCalculate, 3 marks, Plus
- The distance for a light intensityCalculate, 3 marks, Plus, Higher tier
- Oxygen debtExplain, 4 marks, Plus, Higher tier
- Volume of air breathed per minuteCalculate, 4 marks, Plus
- Is it worth heating the greenhouse?Evaluate, 4 marks, Plus, Higher tier
- Reading a limiting factors graphDetermine, 4 marks, Plus
- Respiration rate per gramCalculate, 4 marks, Plus
- Respiration rate at different temperaturesCalculate, 4 marks, Plus
- Energy from aerobic and anaerobic respirationCalculate, 4 marks, Plus
- Yeast fermentation at different temperaturesCalculate, 4 marks, Plus
- Bubble counts: anomaly, mean and trendCalculate, 4 marks, Plus
- Carbon dioxide concentration and rateDetermine, 4 marks, Plus
- Muscle fatigue: clothes peg squeezesCalculate, 4 marks, Plus
- Predicting a rate with the inverse square lawCalculate, 4 marks, Plus, Higher tier
- Floating leaf discs: means and ratesCalculate, 4 marks, Plus
- Trained and untrained: lactic acid and recoveryCalculate, 4 marks, Plus
- Measuring the oxygen debtExplain, 7 marks, Plus, Higher tier
- Breathing during exercisePredict, 7 marks, Plus
- Limiting factors: sketch and explainSketch, 7 marks, Plus, Higher tier
- Photosynthesis: what goes in, what comes outIdentify, 7 marks, Plus
- Pondweed bubbles and the distance of a lampAnalyse, 7 marks, Plus
- Aerobic and anaerobic respiration comparedCompare, 7 marks, Plus
- Risk factors for cancerChoose, 1 mark, Plus
- Health and how diseases interactChoose, 1 mark, Plus
- Lifestyle and non-communicable diseaseChoose, 1 mark, Plus
- Benign and malignant tumoursChoose, 1 mark, Plus
- The path of air into the lungsChoose, 1 mark, Plus
- How the alveoli are adaptedChoose, 1 mark, Plus
- The parts of the bloodChoose, 1 mark, Plus
- Cancer: benign and malignant tumoursChoose, 1 mark, Plus
- Coronary heart disease, stents and statinsChoose, 1 mark, Plus
- Correlation is not causationChoose, 1 mark, Plus
- Temperature, pH and denaturingChoose, 1 mark, Plus
- Where digestion happensChoose, 1 mark, Plus
- Which enzyme, which productsChoose, 1 mark, Plus
- Doing the food tests wellChoose, 1 mark, Plus
- Food test reagents and resultsChoose, 1 mark, Plus
- Parts of the heart and what they doChoose, 1 mark, Plus
- The path of blood through the heartChoose, 1 mark, Plus
- Plant tissues and their jobsChoose, 1 mark, Plus
- Cells, tissues, organs and organ systemsChoose, 1 mark, Plus
- Enzymes and the lock and key modelChoose, 1 mark, Plus
- What changes the rate of transpirationChoose, 1 mark, Plus
- Treatments for heart disease: pros and consChoose, 1 mark, Plus
- Arteries, veins and capillariesChoose, 1 mark, Plus
- Xylem, phloem, transpiration and translocationChoose, 1 mark, Plus
- Define the terms for enzymes and organisationDefine, 3 marks, Plus
- Define the terms for plant transportDefine, 3 marks, Plus
- Body mass index (Edexcel)Calculate, 3 marks, Plus
- Mass to lose for a target BMI (Edexcel)Calculate, 3 marks, Plus
- How a cancer spreadsExplain, 3 marks, Plus
- Alveoli adaptations and lung damageExplain, 3 marks, Plus
- What bile doesExplain, 3 marks, Plus
- Percentage change in breathing rateCalculate, 3 marks, Plus
- Cardiac output = stroke volume × heart rateCalculate, 3 marks, Plus
- The double circulatory systemExplain, 3 marks, Plus
- Rate of blood flow = volume ÷ timeCalculate, 3 marks, Plus
- Reading an enzyme rate graphDetermine, 3 marks, Plus
- Rates from a table and the optimum pHDetermine, 3 marks, Plus
- Reading a smoking and disease graphDetermine, 3 marks, Plus
- Explaining transpirationExplain, 3 marks, Plus
- Volume of air breathed per minuteCalculate, 3 marks, Plus
- Identifying blood vessels from dataIdentify, 3 marks, Plus
- Local and national incidence of a diseaseCalculate, 4 marks, Plus
- Skin cancer cases over timeCalculate, 4 marks, Plus
- How fast a tumour growsCalculate, 4 marks, Plus
- Surface area of the alveoli (standard form)Calculate, 4 marks, Plus
- Plotting rate against pHPlot, 4 marks, Plus
- Rate of a digestion reaction from a mass of productCalculate, 4 marks, Plus
- Heart rate from pulse countsCalculate, 4 marks, Plus
- Risk factors from dataCalculate, 4 marks, Plus
- Stomatal density from countsCalculate, 4 marks, Plus
- Rate of water uptake from a potometerCalculate, 4 marks, Plus
- Volume of water taken up: πr² × distanceCalculate, 4 marks, Plus
- Plan: a potometer investigation (6 marks)Plan, 6 marks, Plus
- Does this risk factor cause the disease? (6 marks)Assess, 6 marks, Plus
- Mechanical or biological heart valves? (6 marks)Discuss, 6 marks, Plus
- Arteries and veins from measurementsCompare, 6 marks, Plus
- Smoking and lung cancer dataCalculate, 6 marks, Plus
- Correlation and cause in a health studyEvaluate, 6 marks, Plus
- Lifestyle and the risk of non-communicable disease (6 marks)Explain, 6 marks, Plus
- Plan: the effect of pH on amylase (6 marks)Describe, 6 marks, Plus
- Stents or statins? (6 marks)Evaluate, 6 marks, Plus
- Plan: testing a food for three nutrients (6 marks)Describe, 6 marks, Plus
- Receptor, coordination centre or effectorChoose, 1 mark, Plus
- How contraceptive methods workChoose, 1 mark, Plus
- How the reproductive hormones control each otherChoose, 1 mark, Plus, Higher tier
- What each reproductive hormone doesChoose, 1 mark, Plus
- Type 1 and type 2 diabetesChoose, 1 mark, Plus
- Thyroxine, adrenaline and negative feedbackChoose, 1 mark, Plus, Higher tier
- Hormones and the glands that make themChoose, 1 mark, Plus
- What homeostasis is and the parts of a control systemChoose, 1 mark, Plus
- Insulin, glucagon and glycogenChoose, 1 mark, Plus, Higher tier
- Nervous and hormonal responsesChoose, 1 mark, Plus
- Types of neurone and the CNSChoose, 1 mark, Plus
- Reaction time investigation: variables and methodChoose, 1 mark, Plus
- How a synapse worksChoose, 1 mark, Plus
- Adrenaline and fight or flightChoose, 1 mark, Plus, Higher tier
- Choosing a method of contraceptionEvaluate, 1 mark, Plus
- Advantages and disadvantages of contraceptive methodsChoose, 1 mark, Plus
- How hormonal contraception worksChoose, 1 mark, Plus
- Is it negative feedback?Identify, 1 mark, Plus, Higher tier
- Fertility drugs, clomifene and IVFChoose, 1 mark, Plus, Higher tier
- Thyroxine, TSH and the metabolic rateChoose, 1 mark, Plus, Higher tier
- Define the terms of the nervous systemDefine, 3 marks, Plus
- Body mass indexCalculate, 3 marks, Plus
- How effective is a contraceptive?Calculate, 3 marks, Plus
- Reading a menstrual cycle hormone graphDetermine, 3 marks, Plus
- The order of a reflex arcChoose, 3 marks, Plus
- A distance to reaction time conversion tableComplete, 3 marks, Plus
- How an impulse crosses a synapseExplain, 3 marks, Plus
- Thyroxine and TSH test resultsDetermine, 3 marks, Plus, Higher tier
- Comparing contraceptive methodsCalculate, 4 marks, Plus
- Blood glucose with and without diabetesCompare, 4 marks, Plus
- Reading a blood glucose graphDetermine, 4 marks, Plus
- Repeat reaction times: anomaly and meanCalculate, 4 marks, Plus
- Reaction time from a ruler dropCalculate, 4 marks, Plus
- Heart rate and adrenalineCalculate, 4 marks, Plus, Higher tier
- The cost of IVF per birthCalculate, 4 marks, Plus, Higher tier
- Negative feedback brings thyroxine back to normalExplain, 4 marks, Plus, Higher tier
- Compare type 1 and type 2 diabetes (6 marks)Compare, 6 marks, Plus
- Glands, hormones and nerves comparedCompare, 6 marks, Plus
- IVF: success, risks and issues (6 marks)Discuss, 6 marks, Plus, Higher tier
- A reflex arc in order, and why it helpsIdentify, 6 marks, Plus
- The reflex arc (6 marks)Explain, 6 marks, Plus
- Plan a reaction time investigation (6 marks)Describe, 6 marks, Plus
- Evaluate two methods of contraception (6 marks)Evaluate, 6 marks, Plus
- Abiotic and biotic factorsChoose, 1 mark, Plus
- Structural, behavioural and functional adaptationsChoose, 1 mark, Plus
- Biodiversity, pollution and conservationChoose, 1 mark, Plus
- Processes in the carbon cycleChoose, 1 mark, Plus
- Competition and extremophilesChoose, 1 mark, Plus
- Population, community, habitat and ecosystemChoose, 1 mark, Plus
- Land use, deforestation and global warmingChoose, 1 mark, Plus
- Capture-recapture: the assumptionsChoose, 1 mark, Plus
- Required practical: designing a field investigationChoose, 1 mark, Plus
- The water cycleChoose, 1 mark, Plus
- The nitrogen cycleChoose, 1 mark, Plus
- Parasitism, mutualism, predation or competitionIdentify, 1 mark, Plus
- Parasites, hosts and mutualismChoose, 1 mark, Plus
- Bioaccumulation of pesticidesChoose, 1 mark, Plus
- Fish farming: benefits and problems (Edexcel)Choose, 1 mark, Plus
- Non-indigenous species (Edexcel)Choose, 1 mark, Plus
- The water cycle in depthChoose, 1 mark, Plus
- Define the terms of ecologyDefine, 3 marks, Plus
- Explaining an adaptationExplain, 3 marks, Plus
- Percentage decrease in a populationCalculate, 3 marks, Plus
- Capture-recaptureEstimate, 3 marks, Plus
- Reading distribution along a transectDetermine, 3 marks, Plus
- Pesticide concentrations along a food chainCalculate, 3 marks, Plus
- Reading a graph of distribution against an abiotic factorDetermine, 4 marks, Plus
- Reading carbon dioxide data from a graphDetermine, 4 marks, Plus
- Land use as percentagesCalculate, 4 marks, Plus
- Percentage cover from a gridded quadratCalculate, 4 marks, Plus
- Population from quadrats that are not 1 m²Estimate, 4 marks, Plus
- How much pesticide a predator takes inCalculate, 4 marks, Plus
- The carbon cycle in numbersCalculate, 4 marks, Plus
- Red and grey squirrels (Edexcel)Calculate, 4 marks, Plus
- How an adaptation helpsSuggest, 5 marks, Plus
- Roles in a food chainIdentify, 5 marks, Plus
- Predators and preyPredict, 5 marks, Plus
- Populations, communities and the factors that affect themIdentify, 5 marks, Plus
- Deforestation: area and carbonCalculate, 5 marks, Plus
- Predator and prey cycles from a graphDetermine, 5 marks, Plus
- Required practical: a belt transect into a woodComplete, 5 marks, Plus
- Eutrophication: river survey dataCalculate, 5 marks, Plus
- Feed and fishmeal on a fish farm (Edexcel)Calculate, 5 marks, Plus
- Ways to protect biodiversity (6 marks)Compare, 6 marks, Plus
- Deforestation for farming (6 marks)Discuss, 6 marks, Plus
- A belt transect from under a treeAnalyse, 6 marks, Plus
- The carbon cycle (6 marks)Describe, 6 marks, Plus
- Plan: comparing a plant population in two areas (6 marks)Describe, 6 marks, Plus
- Eutrophication (6 marks)Explain, 6 marks, Plus
- The nitrogen cycle (6 marks)Describe, 6 marks, Plus
- Binomial namesChoose, 1 mark, Plus
- Selective breeding and inbreedingChoose, 1 mark, Plus
- Probability as a fractionChoose, 1 mark, Plus
- Ratio of phenotypes from a crossChoose, 1 mark, Plus
- Polydactyly and cystic fibrosisChoose, 1 mark, Plus
- DNA, genes, chromosomes and the genomeChoose, 1 mark, Plus
- The three-domain systemChoose, 1 mark, Plus
- Fossils and evidence for evolutionChoose, 1 mark, Plus
- Causes of extinctionChoose, 1 mark, Plus
- Genotypes and phenotypesChoose, 1 mark, Plus
- Genetic engineering: uses, benefits and risksChoose, 1 mark, Plus
- Meiosis, mitosis and fertilisationChoose, 1 mark, Plus
- MutationsChoose, 1 mark, Plus
- The order of classification ranksChoose, 1 mark, Plus
- Embryo screening issuesChoose, 1 mark, Plus
- Sexual and asexual reproductionChoose, 1 mark, Plus
- Sex chromosomesChoose, 1 mark, Plus
- Closest relative on an evolutionary treeDetermine, 1 mark, Plus
- Which two species share the most recent ancestorDetermine, 1 mark, Plus
- When two species shared an ancestorDetermine, 1 mark, Plus
- Causes of variationChoose, 1 mark, Plus
- Words for inheritanceChoose, 1 mark, Plus
- Restriction enzymes, sticky ends and ligaseChoose, 1 mark, Plus, Higher tier
- What the fossil record tells usChoose, 1 mark, Plus
- Human fossils and stone tools (Edexcel)Choose, 1 mark, Plus
- Resistant bacteria and how to slow themChoose, 1 mark, Plus
- The steps of selective breedingChoose, 2 marks, Plus
- Reading a classification tableDetermine, 2 marks, Plus
- Different gametes from chromosome pairsCalculate, 2 marks, Plus
- Expected number of offspringCalculate, 2 marks, Plus
- Percentage of offspring from a crossCalculate, 2 marks, Plus
- Parents from offspring numbersDetermine, 2 marks, Plus
- Steps of genetic engineeringChoose, 2 marks, Plus, Higher tier
- Chromosomes in gametes and body cellsCalculate, 2 marks, Plus
- Cells and chromosomes after cell divisionCalculate, 2 marks, Plus
- Genotypes from a family treeDetermine, 2 marks, Plus
- Carriers in a family treeDetermine, 2 marks, Plus
- Polydactyly in a family treeDetermine, 2 marks, Plus
- The steps of natural selectionChoose, 2 marks, Plus
- Chance of a boy or a girlCalculate, 2 marks, Plus
- Genetic engineering with restriction enzymes and ligaseChoose, 2 marks, Plus, Higher tier
- Matching sticky endsDetermine, 2 marks, Plus, Higher tier
- Selective breeding dataCalculate, 3 marks, Plus
- Cystic fibrosis crossCalculate, 3 marks, Plus
- Chance of cystic fibrosis in a populationCalculate, 3 marks, Plus, Higher tier
- Polydactyly crossCalculate, 3 marks, Plus
- Completing a Punnett squareComplete, 3 marks, Plus
- Extinction dataCalculate, 3 marks, Plus
- Dominant or recessive? Reading a family treeDetermine, 3 marks, Plus
- Define the words of inheritanceDefine, 3 marks, Plus
- Chance of a child from a family treeCalculate, 4 marks, Plus
- How antibiotic resistance developsExplain, 4 marks, Plus
- Resistant bacteria dataCalculate, 4 marks, Plus
- Human fossils: Ardi, Lucy and Turkana Boy (Edexcel)Calculate, 4 marks, Plus
- How fast a resistant strain growsCalculate, 4 marks, Plus
- Dating fossils from rock layersCalculate, 4 marks, Plus
- Natural selection of a named feature (6 marks)Explain, 6 marks, Plus
- Evaluate embryo screening (6 marks)Evaluate, 6 marks, Plus
- Genetic engineering with enzymes (6 marks)Describe, 6 marks, Plus, Higher tier
- Fossils and resistant bacteria as evidence for evolution (6 marks)Explain, 6 marks, Plus
- Plan: selective breeding (6 marks)Plan, 6 marks, Plus
- A cross: genotypes, ratios and numbersDeduce, 6 marks, Plus, Higher tier
- GM crops: benefits and risks (6 marks)Discuss, 6 marks, Plus
- Resistance spreads by natural selectionPredict, 6 marks, Plus
- Twins, genes and the environmentAnalyse, 6 marks, Plus
- Edexcel diseases: pathogens and signsChoose, 1 mark, Plus
- Edexcel diseases: spread and controlChoose, 1 mark, Plus
- Which row of the table is correct?Identify, 1 mark, Plus
- Non-specific defencesChoose, 1 mark, Plus
- Communicable or non-communicableChoose, 1 mark, Plus
- Antibiotics or painkillersChoose, 1 mark, Plus
- Where drugs come fromChoose, 1 mark, Plus
- Pathogens and how they cause diseaseChoose, 1 mark, Plus
- Putting the immune response in orderChoose, 1 mark, Plus
- Which kind of pathogen causes itChoose, 1 mark, Plus
- Reducing the spread of a diseaseChoose, 1 mark, Plus
- How a disease is spreadChoose, 1 mark, Plus
- Disease from its symptomsChoose, 1 mark, Plus
- The order of drug testingChoose, 1 mark, Plus
- Drug trial wordsChoose, 1 mark, Plus
- Why trials are designed as they areChoose, 1 mark, Plus
- How vaccines workChoose, 1 mark, Plus
- What white blood cells doChoose, 1 mark, Plus
- Define the terms for disease and immunityDefine, 3 marks, Plus
- Number of bacteria after a timeCalculate, 3 marks, Plus
- Time for a population of bacteria to growCalculate, 3 marks, Plus
- When a non-specific defence failsExplain, 3 marks, Plus
- Herd immunity protects the unvaccinatedExplain, 3 marks, Plus
- Percentage vaccinated and herd immunityCalculate, 3 marks, Plus
- Percentage fall in cases after a vaccineCalculate, 3 marks, Plus
- Percentage rise in white blood cellsCalculate, 3 marks, Plus
- Cholera cases and clean waterCalculate, 4 marks, Plus
- How a disease spreads and how to reduce itExplain, 4 marks, Plus
- Reading an antibody graphDetermine, 4 marks, Plus
- Comparing antibiotics by clear zonesCalculate, 4 marks, Plus
- How many more must be vaccinatedCalculate, 4 marks, Plus
- How antibiotic resistance developsExplain, 4 marks, Plus
- Percentage reduction in a trialCalculate, 4 marks, Plus
- When a first defence is damagedPredict, 5 marks, Plus
- A disease: its pathogen, spread and controlIdentify, 5 marks, Plus
- Ash dieback in a woodCalculate, 5 marks, Plus
- Chlamydia screening dataCalculate, 5 marks, Plus
- Vaccine coverage and cases over timeDetermine, 5 marks, Plus
- Means from trial resultsCalculate, 5 marks, Plus
- Two diseases comparedCompare, 6 marks, Plus
- Deduce the best dose from trial dataDeduce, 6 marks, Plus
- Should every child be vaccinated? (6 marks)Discuss, 6 marks, Plus
- HIV and the risk of tuberculosisCalculate, 6 marks, Plus
- Evaluating the design of a drug trial (6 marks)Evaluate, 6 marks, Plus
- How a vaccine protects people (6 marks)Explain, 6 marks, Plus
- Trained and untrained athletes (6 marks)Compare, 6 marks, Plus
- A respirometer with germinating seedsSuggest, 6 marks, Plus
- Plan: the rate of fermentation (6 marks)Plan, 6 marks, Plus
- Explaining a limiting factors graph (6 marks)Explain, 6 marks, Plus
- Plan: light intensity and photosynthesis (6 marks)Describe, 6 marks, Plus
- Aseptic techniqueChoose, 1 mark, Plus, Biology only
- Required practical: the clear-zone investigationChoose, 1 mark, Plus, Biology only
- Number of cells after n divisionsCalculate, 2 marks, Plus
- How an adaptation helps a cellExplain, 2 marks, Plus
- Chromosomes and mitosisCalculate, 2 marks, Plus
- Light and electron microscopes: tick twoChoose, 2 marks, Plus
- Magnification from image and real sizeCalculate, 2 marks, Plus
- Image size from magnificationCalculate, 2 marks, Plus
- Cloning plants from meristem tissueCalculate, 2 marks, Plus
- Percentage change in massCalculate, 2 marks, Plus
- Bacteria after a number of divisionsCalculate, 3 marks, Plus, Biology only
- Area of a clear zoneCalculate, 3 marks, Plus, Biology only
- Finding the mean division timeCalculate, 3 marks, Plus, Biology only
- Bacterial numbers in standard formCalculate, 3 marks, Plus, Biology only, Higher tier
- How fast bacteria multiplyAssess, 6 marks, Plus, Biology only, Higher tier
- Plan: which substance stops bacteria best? (6 marks)Plan, 6 marks, Plus, Biology only
- Agar cubes: size and diffusionAnalyse, 8 marks, Plus
- The cell cycle from a root tip countDeduce, 8 marks, Plus
- Drawing cells seen under a microscopeSketch, 8 marks, Plus
- Osmosis: finding where nothing changesAnalyse, 8 marks, Plus
- Is extra carbon dioxide worth it?Assess, 6 marks, Plus, Higher tier
- Conditions in a commercial greenhouse (6 marks)Discuss, 6 marks, Plus, Higher tier
- The inverse square law for a lampDeduce, 6 marks, Plus, Higher tier
- Fick's law and exchange surfacesChoose, 1 mark, Plus, Biology only
- Fick's law: how a change affects the rateCalculate, 3 marks, Plus, Biology only
- Fick's law: comparing two exchange surfacesCalculate, 4 marks, Plus, Biology only
- Potometer volumes and ratesCalculate, 7 marks, Plus
- A statin trial with a placeboJustify, 7 marks, Plus
- Stomata on the two surfaces of a leafSuggest, 7 marks, Plus
- Amylase and temperature: analyse the resultsAnalyse, 7 marks, Plus
- Tumours: benign or malignant, and how fast they growIdentify, 7 marks, Plus
- Auxin, phototropism and gravitropismChoose, 1 mark, Plus, Biology only
- Regions of the brainChoose, 1 mark, Plus, Biology only
- Short sight and long sightChoose, 1 mark, Plus, Biology only
- Structures of the eyeChoose, 1 mark, Plus, Biology only
- How the kidneys workChoose, 1 mark, Plus, Biology only
- Uses of plant hormonesChoose, 1 mark, Plus, Biology only, Higher tier
- Plant growth practical: variablesChoose, 1 mark, Plus, Biology only
- Controlling body temperatureChoose, 1 mark, Plus, Biology only
- Accommodation: focusing near and farChoose, 3 marks, Plus, Biology only
- ADH and the concentration of urineChoose, 3 marks, Plus, Biology only, Higher tier
- Plan: seedlings and light from one sideDescribe, 4 marks, Plus, Biology only
- Responding to a fall in body temperatureExplain, 4 marks, Plus, Biology only
- Water lost as sweatCalculate, 4 marks, Plus, Biology only
- Comparing blood plasma and urineCalculate, 4 marks, Plus, Biology only
- Predict the effect of ADH on urinePredict, 6 marks, Plus, Biology only
- Surgery on a brain tumour: benefits and risks (6 marks)Discuss, 6 marks, Plus, Biology only
- Short and long sight: name, sketch and correctSketch, 6 marks, Plus, Biology only
- Plan: a plant hormone investigation (6 marks)Plan, 6 marks, Plus, Biology only
- Dialysis or a kidney transplant? (6 marks)Evaluate, 6 marks, Plus, Biology only
- Plan: light or gravity and seedling growth (6 marks)Describe, 6 marks, Plus, Biology only
- Dialysis or a transplant: the costs and the patientAssess, 7 marks, Plus, Biology only
- Glucagon and a fall in blood glucoseExplain, 7 marks, Plus, Higher tier
- Evaluate a reaction time conclusionEvaluate, 7 marks, Plus
- Exercise in a warm room: the body keeps coolJustify, 7 marks, Plus, Biology only
- A flow chart for thyroxine and TSHDevise, 7 marks, Plus, Higher tier
- Decomposition, compost and biogasChoose, 1 mark, Plus, Biology only
- Required practical: the milk and lipase methodChoose, 1 mark, Plus, Biology only
- Why biomass is lost along a chainChoose, 1 mark, Plus, Biology only
- Sustainable fisheriesChoose, 1 mark, Plus, Biology only
- Threats to food securityChoose, 1 mark, Plus, Biology only
- Biotechnology and mycoproteinChoose, 1 mark, Plus, Biology only
- Biological control (Edexcel, Biology only)Choose, 1 mark, Plus, Biology only
- What changes the rate of decomposition (Biology only)Choose, 1 mark, Plus, Biology only
- Producers and consumers in a food chainChoose, 2 marks, Plus
- Using efficiency to find biomassCalculate, 2 marks, Plus, Biology only
- Interdependence in a food webChoose, 2 marks, Plus
- Indicator species dataDetermine, 2 marks, Plus
- Trophic levels and apex predatorsGive, 2 marks, Plus, Biology only
- The steps of eutrophicationChoose, 2 marks, Plus
- The control organism and the pest (Edexcel, Biology only)Identify, 2 marks, Plus, Biology only
- Required practical: rate of decay of milkCalculate, 3 marks, Plus, Biology only
- Where the biomass a herbivore eats goesCalculate, 3 marks, Plus, Biology only
- Feeding people with crops or with meatCalculate, 3 marks, Plus, Biology only
- Drawing a pyramid of biomass to scaleCalculate, 3 marks, Plus, Biology only
- Required practical: plotting the rate of decayPlot, 4 marks, Plus, Biology only
- Estimating dry biomass from samplesEstimate, 4 marks, Plus, Biology only
- Feed conversion in intensive and free-range farmingCalculate, 4 marks, Plus, Biology only
- Biological control or pesticide: greenhouse data (Edexcel, Biology only)Calculate, 4 marks, Plus, Biology only
- Where the energy in food goesCalculate, 5 marks, Plus, Biology only
- Mycoprotein as foodSuggest, 5 marks, Plus, Biology only
- Required practical: decay results with an anomalyDetermine, 5 marks, Plus, Biology only
- Efficiency of biomass transfer along a chainCalculate, 5 marks, Plus, Biology only
- Leaf litter bags: rate of decomposition (Biology only)Calculate, 5 marks, Plus, Biology only
- Leaf litter bags at two sitesDeduce, 6 marks, Plus, Biology only
- Feeding a growing population (6 marks)Assess, 6 marks, Plus, Biology only
- Biological control or a pesticide? (6 marks, Edexcel, Biology only)Evaluate, 6 marks, Plus, Biology only
- Plan: temperature and the rate of decay of milk (6 marks)Describe, 6 marks, Plus, Biology only
- Carbon dioxide and global warmingJustify, 7 marks, Plus
- Indicator species below a sewage outletAnalyse, 7 marks, Plus
- Biomass and efficiency along a food chainCalculate, 7 marks, Plus, Biology only
- Estimating a population with quadratsDesign, 7 marks, Plus
- Capture-recapture, forwards and backwardsDeduce, 7 marks, Plus
- The complementary strandChoose, 1 mark, Plus, Biology only
- Who is a clone identical toDetermine, 1 mark, Plus, Biology only
- Cloning plants and animalsChoose, 1 mark, Plus, Biology only
- Darwin, Wallace, Lamarck and MendelChoose, 1 mark, Plus, Biology only
- Protein synthesis and mutationsChoose, 1 mark, Plus, Biology only
- Transcription and translationChoose, 1 mark, Plus, Biology only, Higher tier
- The pentadactyl limb (Edexcel, Biology only)Choose, 1 mark, Plus, Biology only
- Sex-linked genotypes (Edexcel Higher)Choose, 1 mark, Plus, Biology only, Higher tier
- Sex-linked genes and carriers (Edexcel Higher)Choose, 1 mark, Plus, Biology only, Higher tier
- Base percentages in DNACalculate, 2 marks, Plus, Biology only
- Advantages of sexual and asexual reproductionChoose, 2 marks, Plus, Biology only
- Steps of speciationChoose, 2 marks, Plus, Biology only
- Bases and amino acidsCalculate, 2 marks, Plus, Biology only
- The steps of protein synthesisChoose, 2 marks, Plus, Biology only, Higher tier
- From DNA to mRNA to tRNADetermine, 3 marks, Plus, Biology only, Higher tier
- Sex-linked crosses (Edexcel Higher)Calculate, 4 marks, Plus, Biology only, Higher tier
- Why sex-linked disorders are commoner in males (Edexcel Higher)Explain, 4 marks, Plus, Biology only, Higher tier
- A sex-linked family tree (Edexcel Higher)Determine, 4 marks, Plus, Biology only, Higher tier
- Transcription and translation (6 marks)Describe, 6 marks, Plus, Biology only, Higher tier
- How two species formedSuggest, 6 marks, Plus, Biology only
- Sex-linked inheritance in a familyJustify, 6 marks, Plus, Biology only
- Carriers of cystic fibrosis and embryo screeningEvaluate, 7 marks, Plus, Higher tier
- Binomial names and classificationIdentify, 7 marks, Plus
- Genetic engineering: the stepsDevise, 7 marks, Plus, Higher tier
- Meiosis and mitosis comparedCompare, 7 marks, Plus
- Polydactyly in a familyIdentify, 7 marks, Plus
- An evolutionary tree from datesSketch, 7 marks, Plus
- Lytic and lysogenic pathways (Edexcel, Biology only)Choose, 1 mark, Plus, Biology only
- How monoclonal antibodies are madeChoose, 1 mark, Plus, Biology only, Higher tier
- Making monoclonal antibodies in orderChoose, 1 mark, Plus, Biology only, Higher tier
- Uses of monoclonal antibodiesChoose, 1 mark, Plus, Biology only, Higher tier
- Physical, chemical and mechanical defencesChoose, 1 mark, Plus, Biology only
- Ion deficiencies in plantsChoose, 1 mark, Plus, Biology only
- Identifying plant diseasesChoose, 1 mark, Plus, Biology only
- Signs of plant diseaseChoose, 1 mark, Plus, Biology only
- Monoclonal antibodies against cancerExplain, 3 marks, Plus, Biology only, Higher tier
- Growing a clone of hybridoma cellsCalculate, 3 marks, Plus, Biology only, Higher tier
- Why an ion deficiency slows growthExplain, 3 marks, Plus, Biology only
- Percentage of plants infectedCalculate, 3 marks, Plus, Biology only
- Plan: ions and plant growth (6 marks)Plan, 6 marks, Plus, Biology only
- Monoclonal antibodies against cancer (6 marks)Assess, 6 marks, Plus, Biology only
- How a pregnancy test worksExplain, 6 marks, Plus, Biology only
- Diagnosing a sick plantSuggest, 6 marks, Plus, Biology only
- Cardiac outputCalculate, 2 marks, Plus
- Which factor is limiting at a point on the graphChoose, 2 marks, Plus
- Numbers of molecules in photosynthesisComplete, 2 marks, Plus
- Testing leaves for starchChoose, 2 marks, Plus
- Numbers of molecules in aerobic respirationComplete, 2 marks, Plus
- Metabolic reactions: building up and breaking downJustify, 5 marks, Plus
- Glycogen stores in exercise (metabolism)Calculate, 5 marks, Plus
- Rates of photosynthesis from a graphDetermine, 5 marks, Plus
- Lactic acid in the blood: reading the graphDetermine, 5 marks, Plus
- Temperature and the rate of photosynthesisDetermine, 5 marks, Plus
- Why antibodies are specificExplain, 2 marks, Plus
- Slowing antibiotic resistanceChoose, 2 marks, Plus
- Choosing the best doseDetermine, 2 marks, Plus
- No antibiotics for a viral infectionJustify, 7 marks, Plus
- Vaccine coverage and cases over timeAnalyse, 7 marks, Plus
- Clean water and choleraEvaluate, 7 marks, Plus
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