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What is the action mechanism of the antibiotic penicillin?

Answer:

Penicillin, discovered by the Scottish doctor Alexander Fleming, in 1928, is a drug that inhibits enzymes necessary for the synthesis of peptidoglycans, a constituent of the bacterial cell wall. With the inhibition, the bacterial population stops to grow because there is no new cell wall formation.

Fleming won the Nobel Prize in Medicine for the discovery of penicillin.

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