Question 1
Which of the following steps in the folic acid synthesis pathway is specifically inhibited by sulfonamides?
◦ the conversion of tetrahydrofolic acid to PABA
◦ the conversion of PABA to dihydrofolic acid
◦ the conversion of PABA to tetrahydrofolic acid
◦ the conversion of dihydrofolic acid to PABA
◦ the conversion of dihydrofolic acid to tetrahydrofolic acid
Question 2
Which of the following drugs inhibits nucleic acid synthesis specifically in most bacteria?
◦ actinomycin
◦ 5-fluorocytosine
◦ rifampin
◦ fluoroquinolones
◦ tetracycline