About This Chapter
Who's it for?
This unit of our High School Biology Homeschool course will benefit any student who is trying to learn about the structure of viruses. There is no faster or easier way to learn about viruses. Among those who would benefit are:
- Students who require an efficient, self-paced course of study to learn about the life cycle of a virus and they ways in which viruses replicate.
- Homeschool parents looking to spend less time preparing lessons and more time teaching.
- Homeschool parents who need a biology curriculum that appeals to multiple learning types (visual or auditory).
- Gifted students and students with learning differences.
How it works:
- Students watch a short, fun video lesson that covers a specific unit topic.
- Students and parents can refer to the video transcripts to reinforce learning.
- Short quizzes and an Introduction to Viruses unit exam confirm understanding or identify any topics that require review.
Introduction to Viruses Unit Objectives:
- Learn about the prolate, complex, enveloped and icosahedral shapes of viruses.
- Study flu viruses, HIV and the immune system.
- Explain antigenic drift and antigenic shift.
- Read about bacteriophage lysogenic cycles.
- Study the viral genome and replication scheme.
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.
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.
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.
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.
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.
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.
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!
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.
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.
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Other chapters within the High School Biology: Homeschool Curriculum course
- Science Vocabulary & Basics: Homeschool Currilum
- Science Lab Skills: Homeschool Curriculum
- Inorganic Chemistry Review: Homeschool Curriculum
- Organic Chemistry Introduction: Homeschool Curriculum
- Functions & Reactions of Enzymes: Homeschool Curriculum
- Cell Biology: Homeschool Curriculum
- Requirements of Biological Systems: Homeschool Curriculum
- Cell Communication: Homeschool Curriculum
- Metabolic Biochemistry: Homeschool Curriculum
- Cell Division: Homeschool Curriculum
- Nucleic Acids: Homeschool Curriculum
- DNA Replication: Homeschool Curriculum
- Transcription & Translation: Homeschool Curriculum
- Principles of Heredity: Homeschool Curriculum
- Genetic Mutations: Homeschool Curriculum
- DNA Technology & Genomics: Homeschool Curriculum
- Bacterial Biology: Homeschool Curriculum
- The Origin of the Universe: Homeschool Curriculum
- Geologic Time: Homeschool Curriculum
- Evolution Overview: Homeschool Curriculum
- The Classification of Organisms: Homeschool Curriculum
- Plant Biology: Homeschool Curriculum
- Plant Reproduction & Growth: Homeschool Curriculum
- Introduction to Fungi: Homeschool Curriculum
- Introduction to Invertebrates: Homeschool Curriculum
- Introduction to Vertebrates: Homeschool Curriculum
- The Circulatory & Respiratory Systems: Homeschool Curriculum
- The Immune & Endocrine Systems: Homeschool Curriculum
- Animal Reproduction & Development: Homeschool Curriculum
- Human Reproductive Systems: Homeschool Curriculum
- Ecology & the Environment: Homeschool Curriculum
- The Environmental Impact of Humans: Homeschool Curriculum
- Animal Behavior: Homeschool Curriculum
- Molecular Biology Lab Techniques: Homeschool Curriculum
- Analyzing Scientific Data: Homeschool Curriculum