Antibiotics and Antimicrobial Drugs: Selective Toxicity, Classes and Mechanisms


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What did Paul Ehrlich mean by a magic bullet?

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1. Which of the following is NOT a good target for a selectively toxic antimicrobial drug?

2. What is the common modern meaning of the word antibiotic?

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About This Quiz & Worksheet

Different medicines work in our bodies in different ways. Test your understanding of antibiotic and antimicrobial drugs with this worksheet and quiz. You'll need to know about toxicity and how these drugs combat bacteria and microbes to pass the quiz.

Quiz & Worksheet Goals

In these assessments, you'll be tested on the following:

  • The definition of antibiotic
  • What Ehrlich meant by the 'magic bullet'
  • Appropriate and inappropriate targets for selectively toxic antimicrobial drugs
  • Why antibiotics that inhibit the bacterial ribosome sometimes produce toxicity in humans
  • Why the cell wall is a good target for antibiotics

Skills Practiced

This quiz and worksheet allow students to test the following skills:

  • Reading comprehension - ensure that you draw the most important information from the related lesson on antimicrobial and antibiotic medicine
  • Distinguishing differences - compare and contrast classes of antimicrobial drugs
  • Information recall - access the knowledge you've gained regarding how antimicrobial drugs work

Additional Learning

To learn more about antibiotics and antimicrobial drugs, review the accompanying lesson. This lesson covers the following objectives:

  • Define antimicrobial drugs
  • Define antibiotic
  • Differentiate between antifungal, antiviral, and antiparasitic drugs
  • Identify classes of antimicrobial drugs and their targets
  • Understand how antimicrobial drugs work