Properties of Light Microscopy
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Questions and Answers

What is the key difference between an interference microscope and a phase-contrast microscope?

  • Interference microscope utilizes prisms that split the light beam, while phase-contrast microscope does not
  • Phase-contrast microscope is used for examining living specimens, while interference microscope is used for thin tissue slices
  • Interference microscope has higher resolution than phase-contrast microscope
  • Interference microscope uses two beams of light, while phase-contrast microscope uses one beam of light (correct)

How does a fluorescence microscope create images of microorganisms?

  • By using prisms to split the light beam
  • By staining microorganisms with fluorochromes
  • By using ultraviolet light to make microorganisms luminescent (correct)
  • By utilizing interference of light waves

Which type of microscopy is best suited for examining living cells without staining?

  • Phase-contrast microscopy (correct)
  • Fluorescence microscopy
  • Bright-field microscopy
  • Interference microscopy

What property of substances do fluorescence microscopes take advantage of?

<p>Absorption of short wavelengths and emission of longer wavelengths (C)</p> Signup and view all the answers

In microscopy, what is the primary purpose of utilizing differences in refractive indices?

<p>To create contrast in the image (A)</p> Signup and view all the answers

What role do prisms play in an interference microscope's operation?

<p>Split the light beam to produce contrast colors (B)</p> Signup and view all the answers

Which type of microscopy is commonly used when standard staining procedures might affect biological processes in living specimens?

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

How does an interference microscope differ from a bright-field microscope?

<p>Interference microscope utilizes prisms to split the light beam, while bright-field does not (C)</p> Signup and view all the answers

What characteristic distinguishes fluorescence microscopy from phase-contrast microscopy?

<p>Utilization of ultraviolet light to make objects luminescent (C)</p> Signup and view all the answers

Which type of microscopy is most suitable for visualizing subcellular particles like nuclei and organelles without staining?

<p>Phase-contrast microscopy (C)</p> Signup and view all the answers

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