Penicillin belongs to a class of antibiotics characterized by which specific chemical structure?
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Penicillin is the classic example of a beta-lactam antibiotic. This specific chemical ring structure allows the drug to interfere with the synthesis of bacterial cell walls, causing the cells to burst. Because human cells do not have cell walls, penicillin targets the bacteria without harming our own cells.
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Source: Wikipedia (CC BY-SA)
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