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Antimicrobial Chemotherapeutic Agents Online Exam Quiz

Important questions about Antimicrobial Chemotherapeutic Agents. Antimicrobial Chemotherapeutic Agents MCQ questions with answers. Antimicrobial Chemotherapeutic Agents exam questions and answers for students and interviews.

1. The mode of action of polymyxin is to


A : inhibit protein synthesis

B : inhibit DNA synthesis

C : injury to the plasma membrane

D : inhibit folic acid synthesis

2. Which of the following is not an example of potent antitumer agents?


A : Anthramycin

B : Sibromycin

C : Neothramycin

D : Erythromycin

3. The most selective antibiotics are those that interfere with the synthesis of


A : bacterial DNA

B : bacterial RNA

C : bacterial cell walls

D : bacterial plasma membrane

4. A parenteral route of drug administration refers to


A : oral

B : nonoral

C : intravenously

D : intramuscularly

5. With which of the following aminoglycosides interfere?


A : Protein synthesis

B : DNA function

C : Cell wall synthesis

D : Cell membrane function

6. More promising chemotherapeutic agents for treating viral diseases is


A : leukocytic interferon

B : fibroblast interferon

C : interferon

D : nystatin

7. Which of the antibiotic is not used as a food preservative?


A : Pimaricin

B : Nisin

C : Tylosin

D : ?-lactam antibiotic

8. A broad-spectrum antibiotic such as chloramphenicol is one that


A : kills both Gram positive and Gram negative bacteria

B : kills all bacteria

C : kills numerous types of microbes

D : kills all microorganisms

9. Quinolones are


A : antimetabolites

B : penicillin derivatives

C : bacteriostatic

D : broad-spectrum

10. Interference mechanism of ciprofloxacin and norfloxacin is due to their action on


A : cell wall synthesis

B : cell membrane function

C : DNA function

D : protein synthesis

1. Which of the following antibiotics can't be used for treatment of infections with ?-lactamase-producing Staphylococcus aureus ?


A : Vancomycin

B : Ampicillin/sulbactam

C : Cephalothin

D : Piperacillin

2. The penicillin stable in gastric acid and suitable for oral administration is


A : methicillin

B : carbenicillin

C : closacillin

D : pencillin-G

3. Which of the following group is not the carbohydrate containing antibiotic?


A : Streptomycin & Streptothricin

B : Vancomycin & Moenomycin

C : Everninomycin & Nogirimycin

D : Erythromycin & candicidin

4. Chelate forming peptide antibiotic are/is


A : bleomycins

B : sideromycins

C : both (a) and (b)

D : vancomycin

5. The nitrofurans differ from the antibiotics in that they


A : do not occur naturally

B : occur naturally

C : are antimicrobial drugs

D : all of these

6. Amphotericin B and polymyxin interfere with


A : cell wall synthesis

B : protein synthesis

C : cell membrane function

D : DNA function

7. Which of the following is not ?-lactamase-resistant penicillin?


A : Oxacillin

B : Nafcillin

C : Carbenicillin

D : Methicillin

8. The antibiotics not having good activity against Enterobacteriaceae is


A : clindamycin

B : cefoxitin

C : trimethoprim-sulphamethoxazole

D : ciprofloxacin

9. Which of the following tests is used to determine the minimal lethal concentration?


A : Broth dilution test

B : Agar dilution test

C : Dilution susceptibility tests

D : All of these

10. Novobiocin can be used against


A : gram +ve Staphylococci

B : gram -ve Meningococci & Gonococci

C : Haemophilus

D : all of these

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