AS & A Level Biology (9700) — May–June 2025, Paper 22
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 shows a diagram of a root hair cell. Name the parts labelled X, Y and Z in Fig. 1.1.
Answer this question and get it marked →Haemoglobin is a globular protein. Explain why haemoglobin is described as a globular protein.
Answer this question and get it marked →Fig. 3.1 shows the structure of galactose. Describe one difference between the structure of galactose shown in Fig. 3.1 and the structure of glucose.
Answer this question and get it marked →What is the name of the bacterium that causes tuberculosis (TB)?
Answer this question and get it marked →Scientists are investigating the use of stem cells from bone marrow to produce red blood cells as an alternative to donor blood. The stem cells are haematopoietic stem cells.…
Answer this question and get it marked →HRP (horseradish peroxidase) is an enzyme used in the sandwich ELISA test. Fig. 6.1 shows a graph of rate of reaction against substrate concentration for HRP. A non-competitive…
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