Mechanism of action of quinolones is______________?
Correct answer: A. Inhibits DNA gyrase
- A. Inhibits DNA gyrase
- B. Inhibits Bacterial protein synthesis
- C. Inhibits bacterial cell wall synthesis
- D. Inhibits intake of folic acid
Explanation
Quinolones inhibit bacterial DNA gyrase and topoisomerase IV, enzymes required for DNA replication and repair. They therefore block nucleic-acid synthesis rather than protein, cell-wall or folate synthesis.
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