IGCSE Biology (0970) — May–June 2025, Paper 61
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 · Movement into and out of cells - diffusion
A student investigated the effect of concentration on diffusion. The student used pieces of agar which contained universal indicator. Universal indicator is green in substances…
Answer this question and get it marked →Question 2 · 24 marks · Biological molecules - vitamin C and DCPIP
A student used DCPIP solution to compare the concentration of vitamin C in five solutions. The student used this method: - Put 1 cm^3 of 1% DCPIP solution into a test-tube. - Use…
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