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</p> Signup and view all the answers

    Disease-causing microbes are sometimes referred to as what?

    <p>Germs</p> Signup and view all the answers

    Which group of microbes is found virtually everywhere?

    <p>Microbes</p> Signup and view all the answers

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

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

    Which category of diseases do pathogens cause by definition?

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

    What are microbes that do not cause disease known as?

    <p>Nonpathogens</p> Signup and view all the answers

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

    <p>Saprophytes</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</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</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.</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.</p> Signup and view all the answers

    How did Koch contribute to the field of microbiology?

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

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