Bacitracin acts on:: (A) Cell wall, (B) Cell membrane, (C) Nucleic acid, (D) Ribosome
Answer is A. Ans. (A) Cell wall(Ref: Katzung 10/e p741; KDT 8/e p741)Bacitracin acts by inhibiting the synthesis of cell wall.Other polypeptide antibiotics like polymyxin B, colistin and tyrothricin act by affecting membranes.