题目内容

Rifampin treat infection of M. tuberculosis by inhibiting ____.

A. DNA polymerase,
B. DNA gyrase,
C. RNA polymerase
DNA ligase.

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Quinolones are active against prokaryotic DNA specifically byinhibiting ______, an enzyme for uncoiling of replicatingbacterial DNA?

A. DNA polymerase,
B. DNA gyrase,
C. RNA polymerase
DNA ligase.

Sulfonamides compete with _____ molecule, inhibiting synthesis of nucleotide .

A. tetrahydrofolic acid ,
B. dihydrofolic acid ,
C. Purine
D. PABA.

PABA is the target ofSulfonamides, IT is ________________.

A. a substrate used in the production of penicillin
B. a type of belta -lactamase
C. molecularly similar to cephalosporins
D. used to synthesize folic acid

Which one can not inhibit cell wall synthesis?

A. penicillins,
B. cephalosporin,
C. tetracyclines
D. methicillin.

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