IGCSE Biology (0970) — May–June 2023, Paper 41
6 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 the digestive system, with parts labelled A–L. Each letter may be used once, more than once or not at all. State the letter of the part shown in Fig. 1.1:…
Answer this question and get it marked →A student investigated osmosis in potato plant cells, immersing cubes of potato tissue in water and different concentrations of sucrose solution for 30 minutes. Table 2.1 shows…
Answer this question and get it marked →Fig. 3.1 is a photomicrograph of some cells lining the trachea, including a goblet cell and the cell labelled X (ciliated cell). Describe the role of goblet cells.
Answer this question and get it marked →Fig. 4.1 shows the effect of light intensity on the rate of photosynthesis at different temperatures and concentrations of carbon dioxide: line A (25 °C, 0.4% CO2), line B (15 °C,…
Answer this question and get it marked →Fig. 5.1 shows the stages involved in protein synthesis, with parts labelled X, Y and Z, and DNA and amino acid indicated. State the names of the parts labelled X, Y and Z in Fig.…
Answer this question and get it marked →A scientist monitored the changes in the pH in muscles before, during and after two minutes of vigorous exercise. The changes in pH are caused by the production of lactic acid.…
Answer this question and get it marked →