Antibiotics | Medicinal Chemistry | GPAT Mock Test

1. What is the fundamental chemical nucleus of all penicillins?

2. Which second-generation cephalosporin is known for its activity against Haemophilus influenzae?

3. Imipenem, a carbapenem antibiotic, is rapidly inactivated in the kidneys by which enzyme?

4. Clavulanic acid is combined with amoxicillin to:

5. The “Gray baby syndrome” is a life-threatening condition associated with toxicity from which antibiotic in neonates?

6. Tetracyclines are contraindicated in children under 8 years of age due to the risk of:

7. Ototoxicity and nephrotoxicity are the major dose-limiting toxicities of which antibiotic class?

8. Erythromycin and Clarithromycin belong to which class of antibiotics, characterized by a large lactone ring?

9. Clindamycin is a semi-synthetic derivative of lincomycin and is particularly associated with an increased risk of:

10. Vancomycin, a glycopeptide antibiotic, exerts its bactericidal effect by inhibiting:

11. Doxorubicin is an anthracycline antibiotic used in cancer chemotherapy. Its major dose-limiting toxicity is:

12. Aztreonam is a monobactam antibiotic with a spectrum of activity primarily limited to:

13. The mechanism of action of tetracyclines involves binding to the:

14. Which penicillin is known for its effectiveness against Pseudomonas aeruginosa?

15. The anticancer antibiotic Bleomycin causes cell cycle arrest and apoptosis primarily by:

16. Which of the following is a polypeptide antibiotic restricted to topical use due to its systemic toxicity?

17. Azithromycin differs structurally from erythromycin by the insertion of a methyl-substituted nitrogen atom into the lactone ring, forming a subclass known as:

18. Chloramphenicol’s mechanism of action involves the inhibition of which enzyme in bacterial protein synthesis?

19. Which of the following beta-lactamase inhibitors is a sulfone derivative of penicillanic acid?

20. Which tetracycline is known for causing vestibular side effects like dizziness and vertigo?

21. Streptomycin, an aminoglycoside, is a primary drug in the treatment of:

22. Which generation of cephalosporins, including Cefepime, has an extended spectrum of activity against both Gram-positive and Gram-negative organisms, including Pseudomonas?

23. Mitomycin C is an anticancer antibiotic that acts as a bifunctional:

24. The absorption of tetracyclines is significantly impaired when co-administered with: