Which antimicrobial acts by inhibiting cell wall synthesis?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Study for your Microbiology exam with engaging quizzes and comprehensive questions. Review essential concepts in Clinical Laboratory Science to ensure your success. Get ready for your exam!

Multiple Choice

Which antimicrobial acts by inhibiting cell wall synthesis?

Explanation:
Vancomycin acts by blocking cell wall synthesis. It binds to the D-Ala-D-Ala terminus of the peptidoglycan precursors, preventing proper cross-linking of the cell wall. This weakens the wall and leads to bacterial lysis, especially in Gram-positive organisms that rely on thick peptidoglycan layers. The other drugs disrupt other targets: clindamycin and gentamicin inhibit protein synthesis by targeting ribosomal subunits, while nalidixic acid inhibits DNA gyrase and blocks DNA replication.

Vancomycin acts by blocking cell wall synthesis. It binds to the D-Ala-D-Ala terminus of the peptidoglycan precursors, preventing proper cross-linking of the cell wall. This weakens the wall and leads to bacterial lysis, especially in Gram-positive organisms that rely on thick peptidoglycan layers. The other drugs disrupt other targets: clindamycin and gentamicin inhibit protein synthesis by targeting ribosomal subunits, while nalidixic acid inhibits DNA gyrase and blocks DNA replication.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy