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Harms of Bacteria

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Bacteria and Viruses

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Harms of Bacteria


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You will discover and learn new details about the world of microbes, from the diseases they cause to the essential roles they play in ecosystems and industry. Then, work in a top-secret underground biotechnology lab and help develop a new strain of bacteria that can clean up environmental contamination.

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Now You Know

After completing this tutorial, you will be able to complete the following:

  • Summarize the role of bacteria in disrupting the health of organisms.
  • Give examples of bacterial diseases.

Everything You'll Have Covered

What are some diseases caused by bacteria?

~ Tuberculosis, diphtheria, anthrax, and typhus are some of the diseases caused by bacteria. Although not a disease, toxic waste secreted onto improperly handled food can cause food poisoning for those who ingest the bacteria. Although not caused by bacteria, they play a role in the development of acne. Bacteria also cause tooth decay.

Once in our systems, what do bacteria do to cause damage that can make us very ill, or sometimes even kill us? Include specific examples.

~ Bacteria get into our bodies by direct contact, through dust or liquid droplets in the air, by consuming contaminated food or water, and by puncture wounds. Once inside our bodies, they can enter our cells and disrupt them or even kill them. Sometimes bacteria will enter our cells to obtain food, and then reproduce inside the cell. Once inside the body, bacteria can be transported throughout our bodies through our bloodstream and affect multiple areas of the body. Tuberculosis is a disease that results from harmful bacteria in our bodies. Bacteria enter our bodies when we breathe, enter our lungs, and then irritate and kill the cells. The tuberculosis bacteria can be transported to other parts of the body besides the lungs via our blood vessels. Diphtheria bacteria initially affects the throat but can also be transported through the bloodstream and kill cells in other parts of the body.

What can occur if harmful bacteria in our bodies are not controlled?

~ If harmful bacteria in our bodies are not controlled, the damage can cause serious conditions such as heart attacks, respiration problems, and strokes. In addition, we could experience short-term irritations such as food poisoning and acne.

What can be done to protect ourselves from harmful bacteria and their effects?

~ To protect ourselves from harmful bacterial disease we should wash our hands with warm water and soap often throughout the day. We should also carefully wash fruits and vegetables before eating them. In addition, it is important that we receive all necessary vaccinations as dictated by the American Medical Association.

Tutorial Details

Approximate Time 2 Minutes
Pre-requisite Concepts Students should be able to define the terms acne, anthrax, and bacteria.
Course Biology
Type of Tutorial Animation
Key Vocabulary acne, anthrax, bacteria