A-LevelBiologyEnzymes9700/12 · May/June 2014 · Q341 Mark
The malarial parasite, Plasmodium, infects red blood cells and breaks down haemoglobin. Free haem groups are toxic to Plasmodium and the parasite converts them into non-toxic, crystalline haematozoin, using an enzyme, HDP, which is found in all species of Plasmodium. What will be the long term result of giving patients with malaria a drug which inhibits HDP?
Adecreased concentration of free haem groups in infected red blood cells
Bdecreased concentration of haemoglobin in infected red blood cells
Cmore rapid reproduction of some species of Plasmodium in infected red blood cells
Dslower reproduction of all species of Plasmodium in infected red blood cells
✓ Correct answer
D: slower reproduction of all species of Plasmodium in infected red blood cells
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