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Penicillin is active against ____________

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Penicillin is active against ____________

(a) Gram +ve bacteria

(b) Gram-ve bacteria

(c) All virus

(d) All bacteria

I have been asked this question in class test.

The origin of the question is Production of Antibiotics (Isolation of Fermentation Products) in division Antibiotics & Enzyme Immobilization of Drug Biotechnology

1 Answer

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Right answer is (a) Gram +ve bacteria

Explanation: First discovered by Alexander Fleming in 1929. Natural penicillin is active against a variety of gram +ve bacteria organisms. They are labile in acids and become inactive when its beta-lactam ring is cleaved by beta-lactamase enzyme.

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