Bacteria and Its Effects

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Questions and Answers

What is direct contact?

  • Touching contaminated food
  • Walking near someone who is coughing
  • Drinking contaminated water
  • Shaking hands with someone who is sick (correct)

What can be contaminated with pathogens?

  • Air only
  • People and surfaces only
  • Food and water only
  • Foods, water, and surfaces (correct)

How can you avoid indirect contact?

  • By not touching your face
  • By washing your hands regularly (correct)
  • By not eating contaminated food
  • By avoiding sick people

What is an example of indirect contact?

<p>Touching a contaminated surface (D)</p> Signup and view all the answers

Why is it important to avoid pathogens?

<p>Because they can make you sick (C)</p> Signup and view all the answers

What can happen if you don't avoid pathogens?

<p>You will get sick (A)</p> Signup and view all the answers

How can you protect yourself from pathogens?

<p>By washing your hands and avoiding contaminated food and water (A)</p> Signup and view all the answers

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Study Notes

Benefits of Bacteria

  • Bacteria break down waste products in sewage
  • Bacteria can help clean up oil spills

Harmful Effects of Bacteria

  • Certain bacteria act as pathogens and cause diseases such as:
    • Tetanus
    • Typhoid fever
    • Pneumonia
    • Syphilis
    • Cholera
    • Food-borne illness
    • Tuberculosis
  • Campylobacter can create illnesses in humans and is a common cause of food poisoning
  • Yersinia pestis, also known as bubonic plague, is a rod-shaped bacterium known for its harmful nature
  • Bacteria-carrying fleas found on animals such as rats and mice can transmit bacteria that have caused millions of deaths in human history

Transmission of Pathogens

  • Direct Contact
  • Indirect Contact
  • Contaminated Foods and Water

Prevention

  • Avoiding pathogens is crucial to prevent diseases

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