About This Chapter
Health & Disease - Chapter Summary
This interesting chapter helps you review key topics related to health and disease. Engaging text and video lessons cover the definition of a healthy organism and some of the causes of non-infectious diseases. You can review the germ theory of disease, medical terms used in the study of epidemiology and measures used by public health departments to prevent and control diseases. Once you have completed this chapter, you will be prepared to do the following:
- Differentiate between infectious and non-infectious diseases
- Explain how pathogens and disease are related
- Describe the infectious agents of viruses, prions and viroids
- Detail the theories of Louis Pasteur and Robert Koch
- Outline how disease is controlled and prevented
- Define public health and its principles
- Discuss the use of antibiotics and quarantine in disease control
Access these study materials on any mobile device, computer or tablet any time of day as a flexible learning tool. For video lessons, if you'd like to watch just one portion, use the video tabs feature to jump directly to that section. Our self-assessment quizzes help you identify which topics need more work and which topics you've mastered. If you need help, you are welcome to contact one of our instructors for assistance.
1. What is a Healthy Organism?
This lesson will define health and disease in order to gain an understanding of a healthy organism. We will describe the requirements in order to be considered a healthy organism.
2. Noninfectious vs. Infectious Diseases
A disease can be either infectious or noninfectious. In this lesson, we will explore the differences between these two types of diseases and look at examples of each.
3. Causes of Non-Infectious Diseases
In this lesson, you're going to learn about three kinds of non-infectious causes of disease. They are inherited disorders, nutritional deficiencies, and environmentally triggered disorders.
4. 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.
5. Infectious Agents: Viruses, Viroids & Prions
While we tend to think of things that can actively kill us as being living entities, the fact is that non-living entities can actively kill us, as well. This lesson explores some of those entities, including viruses, viroids, and prions.
6. The Germ Theory of Disease: Definition & Louis Pasteur
In this lesson, we will look at one of the most influential experiments in the field of microbiology. We will learn how Louis Pasteur disproved the theory of spontaneous generation which helped lead to the development of the germ theory of disease.
7. Scientist Robert Koch: Biography & Facts
Robert Koch (1843 - 1910) was a German physician and scientist who won the Nobel Prize for his microbiological work on tuberculosis. He also established many foundational techniques for microbiology, some of which are still used today. In this lesson, learn more about this innovative scientist.
8. What is Epidemiology? - Definition & Medical Terms
We are going to gain an understanding of epidemiology and what an epidemiologist is looking for. We will also explore some common terms and examples of past epidemiological studies.
9. Disease Control & Prevention
This lesson will discuss the many different ways by which people can control disease. Everything from vaccination to sterilization and beyond will be mentioned so that you can better appreciate the large arsenal of tools at our disposal.
10. What is Public Health? - Definition & Principles
Have you ever wondered how you can help improve the health of the entire community? In this lesson, you will learn about public health. As opposed to helping people one-by-one, public health policies and practices help large numbers of people become healthier.
11. What Are Antibiotics? - Definition, Types & Side Effects
Antibiotics are medicines created to fight infections caused by bacteria. They accomplish this by destroying the bacteria in a variety of ways. Learn more about how antibiotics work and take a short quiz at the end.
12. Quarantine: Definition & Example
In this lesson, you're going to learn the definition of quarantine as it applies to the import and export of various things as well as its basic process and importance.
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Other chapters within the HSC Biology: Exam Prep & Syllabus course
- Scientific Investigations Overview
- Scientific Validity
- Data Collection & Analysis in Science
- Scientific Presentations
- Internal & External Environments
- Gas & Nutrient Transport in Animals & Plants
- Regulation in Animals & Plants
- Chromosomal Structure & Inheritance
- Mendel & Gene Expression
- Mechanisms of Genetic Change
- DNA Replication & Protein Synthesis
- Recombinant DNA Technology
- Biotechnology Basics
- Genetic Engineering & Reproductive Technologies
- Classification Hierarchy
- Immune Response
- Nervous System & Sensory Mechanisms
- Anatomy & Disorders of the Eye
- Sound & Hearing
- Evolutionary Change
- Time & Human Evolution
- History of Botany
- Photosynthesis Basics
- HSC Biology Flashcards