IGCSE Biology (0610) — 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 three layers A, B and C and stomata on the lower surface. 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 (a double helix with paired bases). 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): aquatic plants provide food for freshwater shrimps and midges; mayflies also feed on aquatic plants; the…
Answer this question and get it marked →Fig. 5.1 is a photomicrograph of a structure found in animal and plant cells, with a structure labelled A. State the name and function of the cell structure labelled A in Fig. 5.1.
Answer this question and get it marked →A student investigated plant growth responses in roots and shoots. Three bean seedlings on damp cotton wool in each of two Petri dishes were orientated with roots pointing in…
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…
Answer this question and get it marked →