Whey protein isolate is a major component of sports nutrition shakes. A quality-control analyst needs to verify the protein concentration in a newly formulated recovery drink. They decide to use a colorimetric assay (using Biuret reagent) to construct a calibration curve.
To produce this calibration curve, the analyst is provided with:
Describe how the analyst could use these materials to produce a calibration curve for whey protein concentration. Do not include details of specific glassware or pipetting techniques in your answer.
Describe how the analyst would then determine the concentration of whey protein in a sample of the recovery drink using this calibration curve.
Practise AQA A Level Biology Proteins with exam-style questions for A Level Biology. 22 questions covering General properties of proteins and Many proteins are enzymes, matched to the AQA A Level Biology (7402) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
