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Ch 23: Antimicrobial Drugs Overview

About This Chapter

Check out this chapter on antimicrobial drugs to improve your understanding of antibiotics, their uses and their effectiveness. These engaging lessons and quizzes are great options for anyone who needs to review these topics for upcoming exams, homework or class assignments.

Antimicrobial Drugs Overview - Chapter Summary

If you need to review basic information about antimicrobial drugs, you're in the right place. Inside this chapter, you'll find a series of informative and easy-to-understand lessons that discuss various types of antibiotics and their uses. You'll learn about concepts like antibiotic resistance, selective toxicity, opportunistic infections and much more. Take the accompanying self-assessment quizzes to reinforce your comprehension of the material. These resources can be accessed whenever you have free time, and our instructors are happy to assist you if you have any questions. Reviewing this chapter can help you:

  • Compare different types of antibiotics
  • Recognize antibiotic and antimicrobial drug toxicities, mechanisms and classes
  • Differentiate between antifungal, antiviral, antiretroviral and antiparasitic drugs
  • Define the concepts of antibiotic resistance and penicillin resistance
  • Analyze multi-drug resistant pathogens and MRSA
  • Assess the effectiveness of antibiotics
  • Evaluate examples of opportunistic infections caused by antibiotic usage
  • Discuss the properties and mechanisms of penicillin
  • Identify inhibitors of cell wall, protein, DNA/RNA and metabolite synthesis
  • Explain how antimicrobial peptides are used against microbes

17 Lessons in Chapter 23: Antimicrobial Drugs Overview
Test your knowledge with a 30-question chapter practice test
Types of Antibiotics: Bactericidal vs.Bacteriostatic & Narrow Spectrum vs. Broad Spectrum

1. Types of Antibiotics: Bactericidal vs.Bacteriostatic & Narrow Spectrum vs. Broad Spectrum

If someone asked you what antibiotics do, you'd probably say they kill bacteria. But that's not always the case. In this lesson, learn about the general types of antibiotics and the differences between them.

Antibiotics and Antimicrobial Drugs: Selective Toxicity, Classes and Mechanisms

2. Antibiotics and Antimicrobial Drugs: Selective Toxicity, Classes and Mechanisms

How can antibiotics kill bacteria but not harm our own cells? In this lesson, learn about the selective toxicity of antibiotics and antimicrobial drugs and some basic mechanisms for their activity.

Antifungal Drugs: Major Types & Functions

3. Antifungal Drugs: Major Types & Functions

Even though the word fungus brings up nasty images in our minds, many fungi are totally harmless. Still, some fungi can cause dangerous infections. In this lesson, learn about antifungal drugs and how they can specifically kill fungi, even though our own cells are similar to fungal cells in many ways.

Antiviral Drugs: Treatments for Flu & Other Common Viruses

4. Antiviral Drugs: Treatments for Flu & Other Common Viruses

You may have heard that viruses are not even considered to be alive, but they sure can cause a lot of damage when they infect us! Learn how antiviral drugs can selectively inhibit viruses even though they use our own cellular machinery to reproduce.

Antiretroviral Drugs: How HIV Medications Work

5. Antiretroviral Drugs: How HIV Medications Work

In recent years, HIV infection no longer means certain death from AIDS. This is because there are many effective drugs to fight HIV. In this lesson, see how these antiretroviral drugs work, and why they must always be used in combination instead of alone.

Antiparasitic Drugs: Types and Mechanisms

6. Antiparasitic Drugs: Types and Mechanisms

Parasites can cause nasty infections, but they are actually very similar to our own cells. In this lesson, learn about the types of drugs commonly used to eradicate eukaryotic pathogens.

Antibiotic Resistance: Definition, Types & Problems

7. Antibiotic Resistance: Definition, Types & Problems

If you have a bad bacterial infection, what do you do? Go to the doctor and get antibiotics, of course. But, what if antibiotics don't work anymore because the bacteria are antibiotic-resistant? In this lesson, learn how bacteria can become resistant to antibiotics and why this is such a big problem.

MRSA and Multi-Drug Resistant Pathogens

8. MRSA and Multi-Drug Resistant Pathogens

We've learned a lot about different kinds of antibiotics and how they work. But there are some pathogens that virtually no antibiotics work against. In this lesson, we learn about two of these pathogens, and how they threaten to take us back to a pre-antibiotic era.

Antibiotic Effectiveness: MICs, Time- and Concentration-Dependent Antibiotics

9. Antibiotic Effectiveness: MICs, Time- and Concentration-Dependent Antibiotics

With so many antibiotics available, not to mention so much antibiotic resistance in bacteria, how is a doctor supposed to choose which drug to prescribe? In this lesson, learn about tests to determine which antibiotics will be most effective against a microbe.

Opportunistic Infections from Antibiotic Usage: Definition & Examples

10. Opportunistic Infections from Antibiotic Usage: Definition & Examples

In this chapter, we've learned about all kinds of antibiotics and how great they are at curing bacterial infections. However, there is also a bad side to antibiotic treatment. In this lesson, learn how antibiotics can actually cause opportunistic infections.

How Does Penicillin Work? - Discovery, Mechanism & Properties

11. How Does Penicillin Work? - Discovery, Mechanism & Properties

In this lesson, you will learn about an accidental discovery that changed human history: the discovery of the antibiotic penicillin. You will also learn how it works and why it's most effective against Gram-positive bacteria.

Penicillin Resistance: How Penicillin-Resistant Bacteria Avoid Destruction

12. Penicillin Resistance: How Penicillin-Resistant Bacteria Avoid Destruction

In the battle between humans and bacteria, antibiotics are one of our most important weapons. But, bacteria can fight back! In this lesson, learn about the strategies that some bacteria use in order to avoid being killed by penicillin.

Inhibitors of Cell Wall Synthesis: Bacitracin, Vancomycin & Mycobacteria-specific Drugs

13. Inhibitors of Cell Wall Synthesis: Bacitracin, Vancomycin & Mycobacteria-specific Drugs

Cell walls make good targets for antibiotics because bacteria need them for survival and our cells don't even have them! In this lesson, learn how different types of antibiotics kill bacteria by preventing them from making their cell walls.

Inhibitors of Protein Synthesis: How Antibiotics Target the Bacterial Ribosome

14. Inhibitors of Protein Synthesis: How Antibiotics Target the Bacterial Ribosome

Proteins carry out tons of incredibly important functions within cells. In this lesson, we will learn how antibiotics can fight bacteria by shutting down the ribosome, the protein synthesis factory of the cell.

Antimicrobial Peptides: Definition and Use Against Microbes

15. Antimicrobial Peptides: Definition and Use Against Microbes

If you could poke holes in a bacterium's membrane, would it be like a water balloon, leaking all over the place until it died? In this lesson, learn how short proteins called peptides can specifically damage microbial plasma membranes.

Inhibitors of DNA/RNA Synthesis: How Rifamycins and Quinolones Kill Bacteria

16. Inhibitors of DNA/RNA Synthesis: How Rifamycins and Quinolones Kill Bacteria

If you were a cell, you wouldn't get very far in life without synthesizing the nucleic acids DNA and RNA. In this lesson, learn how rifamycins and quinolones kill bacteria by inhibiting these important processes.

Inhibitors of Metabolite Synthesis: How Sulfa Drugs Work

17. Inhibitors of Metabolite Synthesis: How Sulfa Drugs Work

In our weight-conscious society today, there's a lot of talk about metabolism and how to speed it up. In this lesson, learn what metabolism really is and how antibiotics can work together to inhibit the bacterial metabolism.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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