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Vancomycin exerts its bactericidal effect primarily by wh... | QuestionStock

Representative image for question: Vancomycin exerts its bactericidal effect primarily by which mechanism?

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Medicine

Vancomycin exerts its bactericidal effect primarily by which mechanism?

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Vancomycin exerts its bactericidal effect primarily by which mechanism?

Options:

Binding D-Ala–D-Ala termini of peptidoglycan precursors
Inhibiting DNA gyrase
Blocking the 30S ribosomal subunit
Disrupting folate synthesis

Correct answer: Binding D-Ala–D-Ala termini of peptidoglycan precursors

Explanation: Vancomycin binds the D‑Ala–D‑Ala terminus of peptidoglycan precursors, preventing cell wall cross‑linking; this bactericidal mechanism targets Gram‑positive bacteria.

Created 2026-03-10T17:34:46.516Z. Updated 2026-03-10T17:34:46.516Z.