Introduction to Microorganisms and Bacteria
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Questions and Answers

What is the size range of bacteria?

  • 10-6 millimeter
  • 1 nanometer
  • 10-3 millimeter (correct)
  • 1 millimeter

Which staining technique uses a single basic dye?

  • Gram stain
  • Ziehl-Neelsen stain
  • Simple stain (correct)
  • Differential stain

What is the shape of spiral bacteria?

  • Rod-like
  • Spirilla (correct)
  • Pairs
  • Spherical or ovoid

How do bacteria reproduce?

<p>By binary fission (C)</p> Signup and view all the answers

What is the characteristic feature of bacterial cells regarding staining?

<p>They are almost colorless and transparent (B)</p> Signup and view all the answers

Which staining technique uses two dyes separated by a decolorizing agent?

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

What is the characteristic feature of bacterial cells regarding staining?

<p>They take the color of the dye in simple stain (A)</p> Signup and view all the answers

What is the size range of bacteria?

<p>10-3 millimeter to 1 millimeter (D)</p> Signup and view all the answers

How do bacteria reproduce?

<p>By binary fission (C)</p> Signup and view all the answers

What is the shape of spiral bacteria?

<p>Spirilla or spirochetes (D)</p> Signup and view all the answers

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