O-LevelBiologyEcology & Environment5090/11 · Oct/Nov 2010 · Q241 Mark

When are antibiotics likely to be most effective?

AInfection is caused by a bacterium or fungus.

BInfection is caused by a virus.

CThe disease is cancerous.

DThe pathogen can digest the antibiotic.

✓ Correct answer

A: Infection is caused by a bacterium or fungus.

Oracle Prep sorts past-paper questions by topic, so you can drill Ecology & Environment and see which topics are most likely to come up next.

Topic: Ecology & Environment, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2010 Paper 1 Variant 1, question 24.

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