Microbiology Quiz
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Questions and Answers

Which type of microbes require living cells to survive and multiply?

  • Fastidious microbes
  • Protozoa
  • Fungi
  • Obligate intracellular pathogens (correct)

What term describes organisms that use chemicals as an energy source and organic compounds other than carbon dioxide as a carbon source?

  • Chemoheterotrophs (correct)
  • Photoautotrophs
  • Chemoautotrophs
  • Photoheterotrophs

Which factor affects microbial growth by its influence on water content?

  • Nutrients
  • Barometric pressure
  • Salinity or salty environment
  • Moisture (correct)

Which factor affects microbial growth by its influence on gaseous atmosphere?

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

Which carbohydrate present in the cell walls of Gram-positive bacteria may be weakened by antibiotics?

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

Which factor affects microbial growth by its influence on water content?

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

What term describes organisms that use chemicals as an energy source and organic compounds other than carbon dioxide as a carbon source?

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

What defines the type of microbes that require living cells to survive and multiply?

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

Which factor affects microbial growth by its influence on gaseous atmosphere?

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

Which carbohydrate is present in the cell walls of Gram-positive bacteria and may be weakened by antibiotics?

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

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