IGCSE Biology (0970) — May–June 2023, Paper 42
7 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Fig. 1.1 is a diagram of part of a cross-section of a leaf, with layer A, layer B, layer C and stomata indicated. Explain why a leaf is considered to be an organ.
Answer this question and get it marked →Fig. 2.1 is a diagram of part of a DNA molecule. Draw a circle on Fig. 2.1 to identify one pair of bases.
Answer this question and get it marked →Antibiotic resistance is an increasing problem worldwide. Erythromycin is an antibiotic. Fig. 3.1 shows the daily doses of erythromycin per 1000 people over a 13-year period…
Answer this question and get it marked →A student recorded information about an aquatic habitat. Fig. 4.1 shows the student's notes: Aquatic plants provide food for freshwater shrimps and midges. Mayflies also feed on…
Answer this question and get it marked →Fig. 5.1 is a photomicrograph of a structure found in animal and plant cells, with the structure labelled A. State the name and function of the cell structure labelled A in Fig.…
Answer this question and get it marked →A student investigated plant growth responses in roots and shoots. Damp cotton wool was placed in two Petri dishes; three bean seedlings were attached in each, each orientated so…
Answer this question and get it marked →Complete the sentences about enzymes by writing a suitable word or phrase in each of the spaces provided. Enzymes are involved in chemical digestion which produces small…
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