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- Question
The antibiotics which affords a broad spectrum of antimicrobial coverage against aerobic and anaerobic bacteria, rickettsiae, chlamydiae, and mycoplasmas is
Options- A. gentamicin
- B. tetracycline
- C. metronidazole
- D. vancomycin
- Correct Answer
- tetracycline
- 1. Which of the following is a drug that interferes with the process of DNA production in the virus that causes genital herpes?
Options- A. Erythromycin
- B. Vancomycin
- C. Amantadine
- D. Acyclovir Discuss
- 2. Fluoroquinolones are antibiotics which inhibit
Options- A. DNA polymerase
- B. RNA polymerase
- C. DNA gyrase
- D. Cross-linking of peptidoglycan Discuss
- 3. Which of the following may cause resistance to penicillin?
Options- A. Impermeability of cell envelope
- B. Production of ?-lactamases by bacteria
- C. Alteration or lack of penicillin-binding proteins
- D. All of the above Discuss
- 4. Which of the following protein synthesis mechanisms may be affected by particular drugs?
Options- A. Peptide bond formation
- B. mRNA translocation
- C. Aminoacyl-tRNA binding
- D. All of these Discuss
- 5. Both penicillin and fluoroquinolones
Options- A. bind to and inactivate a bacterial protein
- B. inhibit the cross-linking of peptidoglycan
- C. are inactivated by ?-lactamase
- D. must be transported into the cytoplasm in order to act Discuss
- 6. When using alcohol as an antiseptic, which concentration is considered most effective?
Options- A. 95%
- B. 50%
- C. 70%
- D. 25% Discuss
- 7. The compound(s) which act(s) as metabolic antagonist is/are
Options- A. trimethoprim
- B. sulphonamides
- C. both (a) and (b)
- D. none of these Discuss
- 8. The scientist who first discovered the substance penicillin was
Options- A. Joseph Lister
- B. Alexander Fleming
- C. Paul Ehrlich
- D. none of these Discuss
- 9. The susceptibility of a microorganism to antibiotics and other chemotherapeutic agents can be determined by using
Options- A. tube dilution technique
- B. paper disk plate
- C. both (a) and (b)
- D. none of these Discuss
- 10. Chemotherapeutic agents must
Options- A. prevent/destroy the activity of a parasite
- B. leave unaltered the host's natural defense mechanisms
- C. be able to come in contact with the parasite by penetrating the cells
- D. all of the above Discuss
Antimicrobial Chemotherapeutic Agents problems
Search Results
Correct Answer: Acyclovir
Correct Answer: DNA gyrase
Correct Answer: All of the above
Correct Answer: All of these
Correct Answer: bind to and inactivate a bacterial protein
Correct Answer: 70%
Correct Answer: both (a) and (b)
Correct Answer: Alexander Fleming
Correct Answer: both (a) and (b)
Correct Answer: all of the above
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