AS & A Level Biology (9700) — May–June 2023, Paper 52
2 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Question 1 · 16 marks · Practical skills: Planning, analysis and evaluation
Describe how the student made a 1:10 dilution of the enzyme extract.
Answer this question and get it marked →Question 2 · 14 marks · Practical skills: Planning, analysis and evaluation
State two variables that the scientists should standardise in this investigation.
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