IGCSE Biology (0610) — October–November 2023, 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 · 23 marks · Respiration; Practical skills (recording results)
Flour and yeast are used to make bread dough. Respiration in yeast produces carbon dioxide gas bubbles that make the bread dough increase in volume. You are going to use bread…
Answer this question and get it marked →Question 2 · 17 marks · Practical skills (biological drawing); Leaf structure
Fig. 2.1 is a photomicrograph of two guard cells in the lower epidermis of a leaf (magnification ×1650), showing two guard cells, surrounding epidermal cells, and line PQ marking…
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