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Ch 31: Holt McDougal Biology Chapter 31: Immune System & Disease

About This Chapter

The Immune System & Disease chapter of this Holt McDougal Biology Companion Course helps students learn the essential lessons associated with the immune system and disease. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Immune System & Disease textbook chapter.

How It Works:

  • Identify the lessons in the Holt McDougal Immune System & Disease chapter with which you need help.
  • Find the corresponding video lessons with this companion course chapter.
  • Watch fun videos that cover immune system and disease topics you need to learn or review.
  • Complete the quizzes to test your understanding.
  • If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.

Students will learn:

  • Pathogens and defenses against them
  • Functions and responses of the immune system
  • Antibiotics and kinds of vaccines
  • Complications of antibiotic resistance
  • Causes and symptoms of allergies and asthma
  • Kinds of immune deficiency diseases

Holt McDougal is a registered trademark of Houghton Mifflin Harcourt, which is not affiliated with Study.com.

8 Lessons in Chapter 31: Holt McDougal Biology Chapter 31: Immune System & Disease
Pathogens and Disease: Definitions, Types & Causes

1. Pathogens and Disease: Definitions, Types & Causes

There are many different types of pathogens and many problems they cause. This lesson will teach you about four main types of pathogens, examples of each, and what problems they cause.

What Is the Immune System? - Our Body's Defense Against Pathogens

2. What Is the Immune System? - Our Body's Defense Against Pathogens

In this lesson, you will be introduced to the immune system. You'll learn about the innate and adaptive immune system, Edward Jenner, haptens and immune tolerance.

Immune System: Function & Responses

3. Immune System: Function & Responses

The immune system is the body's defense against invaders that could do it harm. This lesson covers the different parts and their functions in protecting the body against infections.

Antibiotics and Vaccines

4. Antibiotics and Vaccines

Do you know why children must get regularly vaccinated? Have you ever wondered how an antibiotic works and why they are so widely prescribed? If so, this lesson will help you to understand how changes in medicine have almost eliminated several deadly diseases and added decades to the average person's lifespan.

Antibiotic Resistance: Definition, Types & Problems

5. 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.

Autoimmune Diseases: Definitions & Types

6. Autoimmune Diseases: Definitions & Types

What is an autoimmune disease? Why does it occur? What are some examples of autoimmune diseases? This lesson will describe myasthenia gravis, multiple sclerosis, type 1 diabetes, and much more.

Allergies and Asthma: Causes, Symptoms & Treatments

7. Allergies and Asthma: Causes, Symptoms & Treatments

This lesson explores the meaning of allergies and asthma and how they may interact with one another at the same time. You'll learn about allergic rhinitis, intrinsic asthma and extrinsic asthma as well as the signs, symptoms, and treatment options of each.

Immune Deficiency Diseases: Definitions & Types

8. Immune Deficiency Diseases: Definitions & Types

This lesson will teach you about the immune system, what immune deficiency means, why that's dangerous, and about the important causes of such a problem, including HIV/AIDS, SCID, CVID, and more.

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