IGCSE Biology (0610) — May–June 2025, Paper 53
2 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Question 1 · 22 marks · Practical skills - recording observations and measurements (enzymes and the effect of temperature)
Prepare a table and record your results. (Investigation: effect of temperature on the activity of catalase from potato extract. Test-tube C in a cold water-bath, test-tube R at…
Answer this question and get it marked →Question 2 · 18 marks · Practical skills - biological drawing
Fig. 2.1 is a photograph of an acorn from a Caucasian oak, Quercus macranthera (magnification x3.4). A vertical line labelled P (top) to Q (bottom) marks the full length of the…
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