Microbes in Our Environment
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Questions and Answers

What term is used to refer to non-living microbes in microbiology?

  • Cellular microbes
  • Viroids (correct)
  • Microorganisms
  • Pathogens

Which of the following is an example of an acellular microbe?

  • Viroids (correct)
  • Protozoa
  • Algae
  • Bacteria

Where are microorganisms found according to the text?

  • Only in water
  • Nowhere, they are microscopic
  • Only in soil
  • Virtually everywhere (correct)

Which of the following is NOT a living microorganism?

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

What differentiates acellular microbes from cellular ones?

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

What are considered as the candidates for the first microorganisms on Earth?

<p>Archaea and cyanobacteria (B)</p> Signup and view all the answers

In what year did an outbreak of small pox-like disease occur in China?

<p>1122 BC (D)</p> Signup and view all the answers

What is the first step of Koch's postulates in determining the cause of a disease?

<p>Finding a particular microbe in all cases of the disease (B)</p> Signup and view all the answers

Which field within microbiology involves the study of pathogens and the diseases they cause?

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

What does a microbiologist study?

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

Which area is NOT a career field within microbiology?

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

Which organisms are responsible for producing much of the oxygen in our atmosphere?

<p>Photosynthetic algae and bacteria (A)</p> Signup and view all the answers

What is the term for organisms that live on dead and/or decaying organic matter?

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

What is the process called when microbes are used to clean up toxic wastes and other industrial waste products?

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

What do we call microbes that cause diseases?

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

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

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

What is the scientific term for microbes that do not cause diseases?

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

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