About This Chapter
Who's it for?
Anyone who needs help learning or mastering microbiology material will benefit from taking this course. You will be able to grasp the subject matter faster, retain critical knowledge longer and earn better grades. You're in the right place if you:
- Have fallen behind in understanding antimicrobial, antifungal, antiparasitic and antiviral drugs.
- Need an efficient way to learn about antimicrobial drugs.
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- Struggle with learning disabilities or learning differences, including autism and ADHD.
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- Missed class time and need to catch up.
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How it works:
- Start at the beginning, or identify the topics that you need help with.
- Watch and learn from fun videos, reviewing as needed.
- Refer to the video transcripts to reinforce your learning.
- Test your understanding of each lesson with short quizzes.
- Submit questions to one of our instructors for personalized support if you need extra help.
- Verify you're ready by completing the Antimicrobial Drugs chapter exam.
Why it works:
- Study Efficiently: Skip what you know, review what you don't.
- Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
- Be Ready on Test Day: Use the Antimicrobial Drugs chapter exam to be prepared.
- Get Extra Support: Ask our subject-matter experts any relevant question. They're here to help!
- Study With Flexibility: Watch videos on any web-ready device.
Students will review:
In this chapter, you'll learn the answers to questions including:
- How do broad spectrum antibiotics differ from narrow spectrum antibiotics?
- What are the different classes of antimicrobial and antibiotic drugs?
- How come some bacteria are resistant to penicillin and/or other drugs?
- What drugs inhibit cell wall, DNA/RNA, metabolite or protein synthesis?
- What are antimicrobial peptides, and how do attack microbes?
- What are the different kinds of antifungal and antiparasitic drugs?
- What kinds of drugs do doctors use to treat flus or HIV?
- How do antibiotics cause opportunistic infections?
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.
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.
3. 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.
4. 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.
5. 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.
6. 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.
7. 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.
8. 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.
9. 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.
10. 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.
11. 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.
12. 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.
13. 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.
14. 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.
15. 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.
16. 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.
17. 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.
18. Alexander Fleming: Discovery, Contributions & Facts
Alexander Fleming is a notable name in biomedical research. He is credited with the discovery of penicillin, which led to the development of antibiotics for medicinal use. This article discusses Fleming and his contribution to the scientific community.
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Other chapters within the Microbiology: Help and Review course
- Biology Basics for Microbiology: Help and Review
- Microbiology Basics: Help and Review
- Bacterial Biology: Help and Review
- Microbiology Laboratory Techniques: Help and Review
- Microorganisms and the Environment: Help and Review
- The Disease Process: Help and Review
- Introduction to Viruses: Help and Review
- DNA Viruses: Help and Review
- RNA Viruses: Help and Review
- Protozoan Diseases: Help and Review
- Fungal Infections: Help and Review
- Gastrointestinal Tract Illnesses & Infections: Help & Review
- Sexually Transmitted Bacterial Diseases: Help and Review
- Bloodborne Bacterial Diseases: Help and Review
- Bacterial Diseases of the Respiratory Tract: Help and Review
- Bacterial Skin and Wound Infections: Help and Review
- Immunology And the Body's Defenses Against Pathogens: Help and Review
- Food and Industrial Microbiology: Help and Review
- Sterilization and Antiseptic Techniques: Help and Review