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Ch 7: Introduction to Viruses in Microbiology: Tutoring Solution

About This Chapter

The Introduction to Viruses chapter of this College Microbiology Tutoring Solution is a flexible and affordable path to learning about viruses. These simple and fun video lessons are each about five minutes long and they teach all of the foundational information about viruses required in a typical college microbiology course.

How it works:

  • Begin your assignment or other microbiology work.
  • Identify the virus concepts that you're stuck on.
  • Find fun videos on the topics you need to understand.
  • Press play, watch and learn!
  • Complete the quizzes to test your understanding.
  • As needed, submit a question to one of our instructors for personalized support.

Who's it for?

This chapter of our college microbiology tutoring solution will benefit any student who is trying to learn about viruses and earn better grades. This resource can help students including those who:

  • Struggle with understanding virus structure, function, classification, life cycle, replication and mutation or any other virus topic
  • Have limited time for studying
  • Want a cost effective way to supplement their biology learning
  • Prefer learning biology visually
  • Find themselves failing or close to failing their introductory virus unit
  • Cope with ADD or ADHD
  • Want to get ahead in microbiology
  • Don't have access to their biology teacher outside of class

Why it works:

  • Engaging Tutors: We make learning about viruses simple and fun.
  • Cost Efficient: For less than 20% of the cost of a private tutor, you'll have unlimited access 24/7.
  • Consistent High Quality: Unlike a live microbiology tutor, these video lessons are thoroughly reviewed.
  • Convenient: Imagine a tutor as portable as your laptop, tablet or smartphone. Learn about viruses on the go!
  • Learn at Your Pace: You can pause and rewatch lessons as often as you'd like, until you master the material.

Learning Objectives

  • Describe the structure and function of viruses.
  • Explore the different shapes of viruses.
  • Discuss the life cycle of viruses.
  • Explain how viruses are classified.
  • Learn how DNA and RNA viruses replicate.
  • Understand how viruses mutate.
  • Compare and contrast the bacteriophage lytic and lysogenic cycles.
  • Explain how flu viruses and HIV evade the immune system.

13 Lessons in Chapter 7: Introduction to Viruses in Microbiology: Tutoring Solution
Test your knowledge with a 30-question chapter practice test
What Are Viruses? - Definition, Structure & Function

1. What Are Viruses? - Definition, Structure & Function

In this lesson, you'll learn some historical facts about viruses and the material they are composed of. Find out more as we review the capsid, nucleic acids, the viral envelope, viruses, virions, bacteriophages and virology.

Shapes of a Virus: Helical, Icosahedral, Prolate, Complex & Enveloped

2. Shapes of a Virus: Helical, Icosahedral, Prolate, Complex & Enveloped

Learn about the different shapes viruses can have, such as helical, icosahedral, prolate, complex and enveloped. Find out why one shape is particularly useful from an energetic standpoint.

The Life Cycle of a Virus: How Viruses Live, Attack & Replicate

3. The Life Cycle of a Virus: How Viruses Live, Attack & Replicate

Find out how viruses infect and replicate as we explore the important steps of the virus life cycle, including attachment, uncoating, penetration, replication, and release, as well as the lysogenic and lytic cycles.

Classification of Viruses: Viral Genome and Replication Scheme

4. Classification of Viruses: Viral Genome and Replication Scheme

Find out how viruses are classified based on their being double-stranded, single-stranded, positive-sense, negative-sense, or by having something called reverse transcriptase.

Replication of DNA Viruses

5. Replication of DNA Viruses

This lesson will give you a basic overview of how DNA viruses replicate inside of a host cell. We will cover the entry, integration, replication and release of DNA viruses.

Replication of RNA Viruses

6. Replication of RNA Viruses

This lesson will give you a basic overview of how different types of RNA viruses replicate inside of an animal cell. We will cover the essence of being double-stranded and retroviruses, as well as positive-and negative-sense RNA viruses.

How Viruses Mutate: Antigenic Drift and Antigenic Shift

7. How Viruses Mutate: Antigenic Drift and Antigenic Shift

This lesson will discuss the major ways by which viruses, notably the flu virus, mutates. We will talk about recombination, reassortment, antigenic drift, antigenic shift, and more!

Viruses: Bacteriophage Lytic and Lysogenic Cycles

8. Viruses: Bacteriophage Lytic and Lysogenic Cycles

Viruses are generally not only our enemy but also the enemy of many other organisms. Bacteriophages are viruses that infect specific bacteria. In this lesson, we'll discuss their basic structure and infection cycle.

Flu Viruses, HIV and Immune System Evasion

9. Flu Viruses, HIV and Immune System Evasion

Why is it that our immune systems can protect us from some viruses but not others? We've eradicated smallpox by using vaccines, so why do influenza and HIV remain such dangerous health risks? In this lesson about viruses, we'll explore these questions and learn how influenza and HIV continue to evade the human immune system.

Virulence Factor: Definition & Examples

10. Virulence Factor: Definition & Examples

We will discuss what virulence means and get a working definition of virulence factors. We are going to explore different virulence factors that are used and how they affect our bodies.

Australia Antigen: Symptoms & Treatment

11. Australia Antigen: Symptoms & Treatment

The Australia antigen is associated with the hepatitis B virus and is one of the antigens used to diagnose a hepatitis B infection. Learn more about it in this lesson, as well as corresponding symptoms and possible treatment options.

HBsAg: Screen & Test

12. HBsAg: Screen & Test

Hepatitis B Virus can cause severe illness, leading the cirrhosis and cancer of the liver. The HBsAg screen is used to help detect and diagnose HBV infection in patients and the blood supply.

Antigens vs. Pathogens

13. Antigens vs. Pathogens

Pathogens are small agents that can make you sick. Antigens are a part of the pathogen that your body recognizes. This lesson discusses how they differ and how your body protects against them.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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