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A-LevelBiologyInfectious diseases9700/12 · Feb/Mar 2023 · Q391 Mark

Which statement correctly explains why viruses are unaffected by penicillin?

APenicillin only affects host cell metabolism.
BPenicillin only binds with 70S ribosomes.
CPenicillin only blocks mRNA synthesis in prokaryotes.
DPenicillin only blocks peptidoglycan synthesis.

✓ Correct answer

D: Penicillin only blocks peptidoglycan synthesis.

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About this question

Topic
Infectious diseases, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source
A-Level Biology, Feb/Mar 2023 Paper 1 Variant 2, question 39.

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