Mechanism of action of quinolones is______________?

Related Mcqs:

1. Mechanism of action of chlortetracycline_____________?

   A. Interfere with metabolism
   B. Inhibition of protein synthesis
   C. Inhibition of cell wall formation
   D. Interfere with DNA function

2. Mechanism of action of beta-lactam antibiotics would be______________?

   A. Inhibition of bacterial protein synthesis by binding to subunit of bacterial ribosomes
   B. Inhibition of cell wall peptidoglycan synthesis by competitive inhibition of transpetidases
   C. Reduced drug causes strand breaks in DNA
   D. Inhibition of DNA synthesis by inhibiting DNA-Dependent RNA polymerase

3. The mechanism of action of chloramphenicol is inhibition of synthesis of_____________?

   A. Cell wall
   B. Cell membrane
   C. Protein
   D. DNA

4. Mechanism of action of nifidipine is_____________?

   A. It has a prominent smooth muscle relaxant action causes arteolar dilation leading to fall in blood pressure
   B. Nifidipine depresses the SA node thus decreasing mycocoardial excitability
   C. Mainly depression of A-V conduction
   D. Decreased cardiac output thus decreasing load on myocardium

5. The mechanism of action of sodium nitroprusside is_____________?

   A. Increases cAMP
   B. Direct Vasodilator
   C. Calcium channel blocker
   D. Block the sympathetic flow at hypothalamus

6. The viral action is differentiated from bacterial action by_________________?

   A. Interferon production
   B. Toxin production
   C. Lymphocytes production
   D. Neutrophils production

7. Action of Nitroglycerin is______________?

   A. Direct action on smooth muscle
   B. Slows SA node conductivity
   C. Blocks arrhythmia
   D. Increases perfusion to heart

8. Side of action of muscle selanant is______________?

   A. Myoneural junction
   B. Central
   C. Ascending reticular
   D. Red nucleus activating system

9. Site of ADH action is______________?

   A. Proximal tubule
   B. Loop of Henle
   C. Vasa recta
   D. Collecting tubule

10. The action of styloglossus muscle is______________?

    A. Protrusion of tongue
    B. Posteriorly retracts the tongue
    C. Depression of tongue
    D. Elevation of tongue