Histology (Lec 2) (Set 1)
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Questions and Answers

Which method of microscopy has the highest magnification?

  • Transmission electron microscopy (correct)
  • Brightfield microscopy
  • Phase-contrast microscopy
  • Scanning electron microscopy
  • Which method of microscopy has the highest optical resolution?

  • Phase-contrast microscopy
  • Transmission electron microscopy (correct)
  • Scanning electron microscopy
  • Brightfield microscopy
  • What is the separation distance at which two objects in an image can be apart and still distinguished as separate?

  • Magnification
  • Resolution (correct)
  • Contrast
  • Optical resolution
  • What is the resolution of a microscope with a resolution of 200nm?

    <p>200nm</p> Signup and view all the answers

    Which method of microscopy is used for 2D images of electron beams scattered from the surface of a sample?

    <p>Scanning electron microscopy</p> Signup and view all the answers

    Which method of microscopy is used for 3D images of photoreceptors in the retina?

    <p>Transmission electron microscopy</p> Signup and view all the answers

    What is the purpose of staining with dyes in histology?

    <p>To visualize tissue structures</p> Signup and view all the answers

    What is the main purpose of fixation in histology?

    <p>To preserve cells/tissue</p> Signup and view all the answers

    Which method is commonly used to embed fixed tissues in histology?

    <p>All of the above</p> Signup and view all the answers

    What is the purpose of staining with Haematoxylin and Eosin (H&E) in histology?

    <p>To visualize tissue structures</p> Signup and view all the answers

    What does immunohistochemistry use to label a specific protein or cell?

    <p>Antibodies</p> Signup and view all the answers

    Which of the following is a characteristic of dysplasic colon?

    <p>All of the above</p> Signup and view all the answers

    What is the composition of normal prostate?

    <p>40% basal cells &amp; 60% luminal cells</p> Signup and view all the answers

    What is a characteristic of prostate cancer?

    <p>Luminal hyperproliferation</p> Signup and view all the answers

    What is a characteristic of benign tumors?

    <p>They have clear boundaries</p> Signup and view all the answers

    Which legislation regulates the removal, storage, use, and disposal of human tissue?

    <p>Human Tissue Act (2004)</p> Signup and view all the answers

    What is the fundamental principle of the Human Tissue Act (2004)?

    <p>Consent for removal, storage, and use of human tissue</p> Signup and view all the answers

    What is the composition of luminal cells in prostate tumors?

    <blockquote> <p>99%</p> </blockquote> Signup and view all the answers

    What is the composition of basal cells in prostate tumors?

    <p>&lt; 0.1%</p> Signup and view all the answers

    True or false: Most cells are visible to the naked eye?

    <p>False</p> Signup and view all the answers

    True or false: The resolution of an electron microscope can be as low as 0.2nm?

    <p>True</p> Signup and view all the answers

    True or false: The separation distance at which two objects in an image can be distinguished as separate is called optical resolution?

    <p>True</p> Signup and view all the answers

    True or false: Fixation in histology prevents tissue degradation and preserves biological activity?

    <p>True</p> Signup and view all the answers

    True or false: Staining with Haematoxylin in histology allows for visualization of acidic structures?

    <p>True</p> Signup and view all the answers

    True or false: Immunohistochemistry uses antibodies to label specific proteins or cells?

    <p>True</p> Signup and view all the answers

    True or false: Dysplasic colon is characterized by irregularity of crypt contour.

    <p>True</p> Signup and view all the answers

    True or false: Prostate tumors are composed of > 99% basal cells.

    <p>False</p> Signup and view all the answers

    True or false: Benign tumors have the potential to grow into surrounding tissues.

    <p>False</p> Signup and view all the answers

    True or false: The Human Tissue Act (2004) requires consent for the removal, storage, and use of human tissue.

    <p>True</p> Signup and view all the answers

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