AS & A Level Biology (9700) — October–November 2024, 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 · 21 marks · Photosynthesis
A student prepared extracts of the photosynthetic pigments from R. salina and S. costatum. The student carried out chromatography to identify and compare the pigments in the two…
Answer this question and get it marked →Question 2 · 9 marks · Biodiversity, classification and conservation
The ecologists sampled the plant species in peat bog A and peat bog B. The ecologists decided to use two suitable indices of biodiversity: Simpson's index of diversity; Shannon…
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