Microbiology Overview and Major Groups Quiz

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Questions and Answers

What is the best way to describe viruses?

  • Dead entities
  • Infectious particles (correct)
  • Alive entities
  • Infectious organisms

What is the size range of viruses?

  • 1 micron to 50 microns
  • 10 nm to 1000 nm
  • 100 nm to 500 nm
  • 20 nm to 200 nm (correct)

Which of the following cells can viruses infect?

  • Only animal cells
  • Every type of cell (correct)
  • Only plant cells
  • Only bacterial cells

Compared to animal cells, how small are viruses?

<p>$50$ times smaller (A)</p> Signup and view all the answers

How can bacteria be best described?

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

What is the most appropriate term for viruses in terms of being alive or dead?

<p>Active or inactive (D)</p> Signup and view all the answers

What term is used to describe viruses as they are unable to carry out their life-sustaining functions or reproduce without a host cell?

<p>Obligate intracellular parasites (D)</p> Signup and view all the answers

Which statement best describes the function of viruses once they infect a host cell?

<p>Viruses use the ribosomes of their host cells to synthesize viral proteins. (B)</p> Signup and view all the answers

What do viruses use to generate or store energy, and for all other metabolic functions?

<p>Host cell's ATP (C)</p> Signup and view all the answers

What is the Latin word for 'poison', which is now used to refer to viruses?

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

Which discovery led to the identification of agents now known as viruses?

<p>Fluid extract from diseased animals and plants passing through a filter (C)</p> Signup and view all the answers

Which of the following is NOT a common disease caused directly by viruses?

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

What are viruses recognized as, in addition to causing diseases?

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

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