All of the following inhibit cell wall synthesis EXCEPT
Correct Answer: Aminoglycosides
Description: i.e. (Aminoglycosides): (669, 709-KDT 6th) (852-53-H17th)Aminoglycosides (Streptomycin, Gentamicin etc) causes mis reading of mRNA code and affect permeabilityMECHANISM OF ACTION1. Inhibit cell wall synthesis - Penicillins, Cephalosporins, Cycloserine, Vancomycin, Bacitracin2. Cause leakage from cell membranes:- Polypeptides - Polymyxins, Colistin, Bacitracin, Polyenes - Amphotericin B, Nystatin, Hamycin, Gramicidin, Daptomycin3. Inhibit protein synthesis; - Tetracyclines, chloramphenicol, Erythromycin, Clindamycin, Linezolid, aminoglycosides, Mupirocin, Quinopristin / dalpopristin4. Inhibit DNA gyrase: fluoroquinolones - Ciprofloxacin and others novobiocin5. Interfere with DNA function : Rifampin, Metronidazole6. Interfere with DNA synthesis: - Acyclovir, Zidovudine7. Interfere with inter mediary metabolism : Sulfonamides sulfones, PAS, Trimethoprim, Pyrimothamine, Ethambutol* Virtually all the antibiotics that inhibit cell wall synthesis are bactericidal. That is they eventually result in the cells death due to osmoticlysis (852-53-H17th)Examples - Bacitracin, Glycopeptides (Vancomycin and teicoplanin) p- lactam antibiotics (paricillins, cephalosporins, Carbapenems**) (imipenem, meropenem feropenem) and monobactams** (Aztreonam)
Category:
Pharmacology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now