CAIE A Level Biology 9700 · Infectious diseases
A hospital patient with a bacterial wound infection is prescribed penicillin. After several days, the infection shows no improvement. Discuss the mode of action of penicillin, why antibiotics such as penicillin are ineffective against viruses, and the consequences of antibiotic resistance along with steps that can be taken to reduce its impact.
4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.
Discuss means: Set out the points on more than one side and weigh them up. Cover both sides, then finish with a judgement that follows from what you wrote.
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