Questions: Required practicals and maths skills
New numbers every time.
Units and magnification
- mm, μm and nmCalculate, 1 mark, Plus
- MagnificationCalculate, 2 marks, Plus
- Real size from magnificationCalculate, 2 marks, Plus
- Sizes in standard formCalculate, 1 mark, Plus
- Total magnification of a microscopeCalculate, 1 mark, Plus
- Light and electron microscopesChoose, 1 mark, Plus
- Real size from a scale barCalculate, 2 marks, Plus
- Magnification and unitsDeduce, 5 marks, Plus
Means, percentages and uncertainty
- Percentage change in massCalculate, 2 marks, Plus
- Mean of repeatsCalculate, 1 mark, Plus
- Spotting an anomalyChoose, 1 mark, Plus
- Range and uncertaintyCalculate, 2 marks, Plus
- Percentage of a totalCalculate, 1 mark, Plus
- Variables in a biology investigationChoose, 1 mark, Plus
- Percentage difference between two meansCalculate, 2 marks, Plus
- Mean, range and uncertaintyEvaluate, 7 marks, Plus
- Two groups as percentagesCompare, 7 marks, Plus
Rates and graphs
- Rate as 1000 ÷ timeCalculate, 1 mark, Plus
- Rate per minuteCalculate, 1 mark, Plus
- Optimum from a graphDetermine, 1 mark, Plus
- Concentration with no change in massDetermine, 2 marks, Plus
- Rate from the gradientCalculate, 2 marks, Plus
- Choosing a chartChoose, 1 mark, Plus
- Predicting osmosisChoose, 1 mark, Plus
- Plot, gradient and predictionSketch, 7 marks, Plus
- An enzyme and pH: rates from timesAnalyse, 6 marks, Plus
- Initial rate and mean rateDeduce, 6 marks, Plus
- Do the data support the hypothesis? (6 marks)Discuss, 6 marks, Plus
Sampling and estimates
- Estimating a population with quadratsCalculate, 3 marks, Plus
- Capture-recapture estimateCalculate, 2 marks, Plus
- Why place quadrats at randomChoose, 1 mark, Plus
- TransectsChoose, 1 mark, Plus
- Efficiency of biomass transferCalculate, 2 marks, Plus
- Area of a clear zoneCalculate, 2 marks, Plus, Biology only
- Plants per square metreCalculate, 2 marks, Plus
- A quadrat estimate evaluatedEvaluate, 7 marks, Plus
- Counting cells and standard formDevise, 6 marks, Plus
Ratios and probability
- Surface area to volume ratioCalculate, 2 marks, Plus
- Probability from a crossCalculate, 2 marks, Plus
- Expected numbers from a ratioCalculate, 1 mark, Plus
- Cells after repeated divisionCalculate, 2 marks, Plus
- Body mass indexCalculate, 2 marks, Plus
- Correlation and causeChoose, 1 mark, Plus
- Cardiac outputCalculate, 2 marks, Plus
- Ratios, probability and expected numbersPredict, 5 marks, Plus
- Surface area to volume of two organismsJustify, 7 marks, Plus
- Correlation and causeSuggest, 5 marks, Plus
Required practicals review
- What each required practical doesChoose, 1 mark, Plus
- Food test resultsChoose, 1 mark, Plus
- Hazards in biology practicalsChoose, 1 mark, Plus
- Improving an experimentChoose, 1 mark, Plus
- Plan a biology investigation (6 marks)Describe, 6 marks, Plus
- Hazards and risks in a practicalAssess, 5 marks, Plus
- Evaluate a method (6 marks)Evaluate, 6 marks, Plus
Working scientifically
- Independent, dependent and control variablesIdentify, 3 marks, Plus
- Spot an anomaly and find the meanCalculate, 3 marks, Plus
- Precise or accurate?Choose, 2 marks, Plus
- Random or systematic error?Identify, 1 mark, Plus
- Working scientifically: the wordsChoose, 1 mark, Plus
- The resolution of an instrumentWrite down, 1 mark, Plus
- Make an investigation valid and repeatableSuggest, 4 marks, Plus
- Variables in an investigationIdentify, 6 marks, Plus
- Define the words of working scientificallyDefine, 3 marks, Plus
- Design an investigation to test a hypothesis (6 marks)Design, 6 marks, Plus
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