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Use the computer to model an epidemic. Try out public health policies to control the spread of the epidemic, to minimise the number of sick days and deaths.

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bioNRICH is the area of the stemNRICH site devoted to the mathematics underlying the study of the biological sciences, designed to help develop the mathematics required to get the most from your study of biology at A-level and university.

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Conversion Sorter

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Mixed up Mixture

Stage: 4 Challenge Level: Challenge Level:1


A standard calibration for a spectrophotometric assay for lysozyme was created by diluting some initial concentrations of the reagents Tris HCl buffer, NaCl, Lysozyme and a Micrococcus lysodeikticus suspension.The final volume was 5ml.

The numbers in the calculation have become mixed up. Can you work out how consistently to drag them back into the table? There will be two numbers left over. What will these represent?

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