What enzyme do resistant bacteria produce to destroy the penicillin molecule before it can damage them?
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Bacteria quickly evolved defense mechanisms against penicillin by producing an enzyme called beta-lactamase. This enzyme breaks the crucial chemical ring of the antibiotic, rendering it completely useless. This battle led to the development of synthetic penicillin variants like methicillin. Photo: Jawahar Swaminathan and MSD staff at the European Bioinformatics Institute, Wikimedia Commons, Public domain.
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Source: Wikipedia (CC BY-SA)
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