Medicine The antibiotic which acts by interfering with addition of new cell wall subunits (Muramyl pentapeptides) is: A Bacitracin B Penicillins C Vancomycin D Mupirocin 💡 Explanation The antibiotic which acts by interfering with addition of new cell wall subunits (Muramyl pentapeptides) is: ✓ Correct Answer: C. Vancomycin