A) chloramphenicol
B) erythromycin
C) penicillin
D) tetracycline
Correct Answer: C
Solution :
The penicillin, were the first antibiotics discovered as natural products from the mould Penicillium. All penicillin derivatives produce their bacteriocidal effects by inhibition of bacterial cell wall synthesis. Specifically, the cross linking of peptides on the muco saccharide chains is prevented. If cell walls are improperly made cell walls allow water to flow into the cell causing it to burst.
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