This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Which drug acts by inhibiting cell wall - 
Select and explain. 
A. Cefepime, B. Tetracycline, C. Erythromycin, D. Ciprofloxacin
A: Cefepime
Answer: A: Cefepime 
Explanation: Ans. is 'a' i.e., Cefepime Mnemonic for Drugs acting on cell wall Very Funny BioChemistry Lab o Very -------> Vancomycin o Funny -------> Fosfomycin o Bio -------> Bacitracin o Chemistry -------> Cycloserine o Lab -------> Lactam (beta-lactams --> Penicillin, cephalosporins, monobactom, carbapenam). o Because these drugs act during cell wall synthesis, they are active against multiplying organisms (multiplying organisms synthesize new cell wall). They are not effective against resting organisms because these organisms have already synthesized cell wall. Note : Cefepime is a fouh generation cephalosporin.