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Question

Penicillin is effective against gram-positive as well as gram-negative bacteria. 


A
True
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B
False
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Solution

The correct option is B False
Penicillin is effective only against Gram-positive bacteria because Gram-negative bacteria have a lipopolysaccharide and protein layer that surrounds the peptidoglycan layer of the cell wall, preventing penicillin from attacking.

Chemistry

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