Penicillins show great selective toxicity because ____.

Penicillins show great selective toxicity because ____.



A. They are very simple to create.
B. They are enzymes.
C. Peptidoglycan is not found in human cells.
D. Bacterial plasma membranes are different from eukaryotic membranes.
E. They are too large to affect eukaryotic cells.


Answer: C. Peptidoglycan is not found in human cells.



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