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Pharmacology · Antimicrobials
Sample itemWhat is the principal mechanism of beta-lactam antibiotics?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
A. Inhibit bacterial cell-wall synthesis
The key Antimicrobials principle identifies Inhibit bacterial cell-wall synthesis as the best answer because it most directly accounts for the mechanism, use, or laboratory finding described.
Option by option
A. Inhibit bacterial cell-wall synthesis (correct)
Correct. Inhibit bacterial cell-wall synthesis matches the decisive principle in this item.
B. Block viral reverse transcriptase
Block viral reverse transcriptase does not fit the stated antimicrobials relationship.
C. Bind human ribosomes
Bind human ribosomes is inconsistent with the requested mechanism or identification.
D. Inhibit fungal ergosterol
Inhibit fungal ergosterol may have another clinical role but is not supported by this clue.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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