Microbiology: Nonpathogens and Opportunistic Pathogens
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Questions and Answers

Which term refers to extremely small living organisms and certain nonliving entities?

  • Microbes (correct)
  • Germs
  • Pathogens
  • Acellular microbes

What is the scientific term for disease-causing microbes?

  • Viruses
  • Pathogens (correct)
  • Protozoa
  • Prions

Which type of microbes are known as cellular microbes?

  • Protozoa
  • Viroids
  • Prions
  • Bacteria (correct)

What category do viroids, prions, and viruses fall into?

<p>Acellular microbes (C)</p> Signup and view all the answers

Disease-causing microbes are sometimes referred to as what?

<p>Germs (D)</p> Signup and view all the answers

Which group of microbes is found virtually everywhere?

<p>Microbes (D)</p> Signup and view all the answers

What term refers to microbes that can cause disease but usually do not?

<p>Opportunistic pathogens (C)</p> Signup and view all the answers

Which category of diseases do pathogens cause by definition?

<p>Both infectious diseases and microbial intoxications (A)</p> Signup and view all the answers

What are microbes that do not cause disease known as?

<p>Nonpathogens (A)</p> Signup and view all the answers

Which group of microorganisms live on dead and decaying organic matter?

<p>Saprophytes (D)</p> Signup and view all the answers

In the context of microbiology, what term describes microbes that are waiting for the right opportunity to cause disease?

<p>Opportunistic pathogens (B)</p> Signup and view all the answers

What is the role of microbes like cyanobacteria in our atmosphere?

<p>Producing much of the oxygen we breathe (C)</p> Signup and view all the answers

Which statement accurately describes Koch's Postulates?

<p>They help determine the cause of a specific infectious disease. (B)</p> Signup and view all the answers

What is the significance of fulfilling Koch's Postulates?

<p>It establishes a causal relationship between a microbe and a disease. (B)</p> Signup and view all the answers

How did Koch contribute to the field of microbiology?

<p>By developing laboratory culture techniques for microorganisms. (A)</p> Signup and view all the answers

Under what circumstances can Koch's Postulates not be fulfilled?

<p>When the microbe is part of the indigenous microbiota. (A)</p> Signup and view all the answers

What is the primary goal of a microbiologist according to the text?

<p>To determine the cause of specific infectious diseases. (D)</p> Signup and view all the answers

How does Koch's Postulates help in understanding infectious diseases?

<p>By establishing a link between a microbe and a disease. (A)</p> Signup and view all the answers

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