Pharmacodynamics: Drug Effects on the Body
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Questions and Answers

Which type of drug action is exemplified by antacids neutralizing gastric acid secretion?

  • Non-receptor mediated action on plasma membrane
  • Non-receptor mediated action by chemical action (correct)
  • Non-receptor mediated action on subcellular structures
  • Non-receptor mediated action by physical means
  • Which drug action involves increasing the permeability of bacterial plasma membrane?

  • Drugs acting by chelation
  • Drugs acting by physical means
  • Drugs acting on plasma membrane (correct)
  • Drugs acting on subcellular structures
  • What is the primary function of chelating agents in drug action?

  • To form a non-toxic, water-soluble complex with toxic metal ions (correct)
  • To neutralize gastric acid secretion
  • To increase the permeability of bacterial plasma membrane
  • To inhibit protein synthesis in bacteria
  • Which drug action involves inhibiting protein synthesis in bacteria by binding to ribosomal subunits?

    <p>Drugs acting on subcellular structures</p> Signup and view all the answers

    Which drug action is primarily employed in the treatment of heavy metal poisoning?

    <p>Chelation</p> Signup and view all the answers

    Study Notes

    Drug Actions

    • Chemical antagonism is exemplified by antacids neutralizing gastric acid secretion.

    Antibacterial Drug Actions

    • Surfactants increase the permeability of bacterial plasma membrane.

    Chelating Agents

    • The primary function of chelating agents is to bind to metal ions, removing them from the body.

    Antibacterial Mechanisms

    • Aminoglycosides and tetracyclines inhibit protein synthesis in bacteria by binding to ribosomal subunits.

    Heavy Metal Poisoning

    • Chelating agents are primarily employed in the treatment of heavy metal poisoning.

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    Description

    Learn about pharmacodynamics and how drugs interact with the body, including their biochemical and pharmacological effects. Understand non-receptor mediated actions and the various mechanisms through which drugs produce their effects.

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