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A-LevelBiologyTransport in mammalsOct/Nov 2024Paper 2 Q510 Marks

Malaria is an infectious disease caused by the protoctist, Plasmodium. As part of its lifecycle, Plasmodium infects human red blood cells. Researchers can compare haemoglobin from the red blood cells of a healthy person with haemoglobin from a person with malaria. (b) In the laboratory, oxygen at different partial pressures can be bubbled through a solution of haemoglobin to determine the percentage saturation of haemoglobin at each partial pressure. A graph constructed from the results is known as an oxygen dissociation curve. Fig. 5.1 is an oxygen dissociation curve for normal adult haemoglobin in humans. [Figure 5.1]

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About This A-Level Biology Question

This structured question appeared in the Cambridge A-Level Biology (9700) Oct/Nov 2024 examination, Paper 2 Variant 2. It tests the topic of Transport in mammals and is worth 10 marks.

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