A-level Biology past paper questions with Graphs
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You need to know some maths for A level Biology, including to work out whether an experiment can be said to have shown an effect or not. Master this early on and it will not help you with exam questions, but also make it easier for you to learn the bits of the course that are explained using these statistical methods.
How to approach and answer A-level Biology Questions that need you to Analyse Figures, Tables and Images - lots of example past paper questions with the markschemes
A variable is any value that does/might change during an experiment. Variables can include things like pH, temperature, colour, or the concentration of substances. The amount of time that has passed is a variable, as are rates of reaction.
Practising recall and doing questions is so important for long term retention of information. Try this self marked quiz. OCR A Animal Transport.
10% of the marks in Biology papers are for calculations. Here are some good practise questions and a great advice document from OCR (applicable to all boards)
Which maths skills you need to practise for the new specification A-level Biology - excellent resources from OCR - also applies to AQA and Eduqas, lots of great practice questions
The quantity of maths in the 2017 specification is a challenge to many students - so I put together a summary of all of the OCR A new spec questions with some element of data analysis.
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How to approach and answer A-level Biology Questions that need you to Analyse Figures, Tables and Images - lots of example past paper questions with the markschemes
DO NOT LOOK at the question and then look at the data to answer the question.
Look closely at the graph or table
look very carefully at the axes - have they plotted mean or rate or time, mass/volume or concentration ?
can you see range bars ?
In a table what range is in the replicates when you compare to the mean ?
what trends can you observe ? then think about what principle of biology is being shown by the the trends.
How would you explain the highest value, the lowest value, the point at which the line crosses the x axis, how would you explain the largest range, how would you change the experiment to reduce the spread in the data ?
Once you have a coherent understanding of the trends - only then look at the question.
Precision, control variables, independent variables ? Confusing for many students, however, particularly important now that this year practical skills are assessed in the exam paper.
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There is plenty of excellent guidance on how to plot graphs and draw tables in the OCR practical booklet ..... pdf
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