šŸ”
Metronidazole is selectively active against anaerobic
organisms because:
A. Aerobes have an active transport mechanism to pump it out of their cell
B. Only anaerobes reduce it to generate the
reactive nitro radical
C. It is rapidly inactivated in the presence of
oxygen
D. It binds to DNA of anaerobes with high affinity
0 like 0 dislike

1 Answer

B. Only anaerobes reduce it to generate the
reactive nitro radical
0 like 0 dislike

Related questions

Mammalian cells are not inhibited by low concentrations of tetracyclines that inhibit sensitive microorganisms because: A. Host cells lack active transport mechanism for tetracyclines B. Host cells actively pump out ... host cells has low affinity for tetracyclines D. Both A' and C' are correct
Answer : D. Both ā€˜Aā€™ and ā€˜Cā€™ are correct...

View solution
0 like 0 dislike
1 answer

Omeprazole exerts practically no other action except inhibition of gastric acid secretion because: A. It transforms into the active cationic forms only in the acidic pH of the gastric juice B. Its ... forms are unable to diffuse out from the gastric parietal cell canaliculi D. All of the above
Answer : D. All of the above...

View solution
0 like 0 dislike
1 answer

Tinidazole differs from metronidazole in that: A. It is not active against anaerobic bacteria B. It has a broader spectrum of activity C. It has a longer elimination half life D. It has better oral absorption
Answer : C. It has a longer elimination half life...

View solution
0 like 0 dislike
1 answer

Metronidazole is used in peridontal abscess because of activity against: A. Entamoeba histolytica B. Giardia lamblia C. Anaerobic bacilli D. Aerobic gram positive cocci
Answer : C. Anaerobic bacilli...

View solution
0 like 0 dislike
1 answer

Select the drug which is active against a variety of diarrhoea producing organisms like Giardia, Shigella, Salmonella as well as S. typhi and Trichomonas vaginalis, but is not a first line treatment for any of these: A. Metronidazole B. Mepacrine C. Cotrimoxazole D. Furazolidone
Answer : D. Furazolidone...

View solution
0 like 0 dislike
1 answer

50.5k questions

47.1k answers

240 comments

7.0k users