Biology of Cell: Microscopy and Cell Structure
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Questions and Answers

Who was the first to describe cells by examining a piece of cork through a microscope?

  • Robert Hooke (correct)
  • Louis Pasteur
  • Gregor Mendel
  • Antonie van Leeuwenhoek
  • What is the ratio of the size of the image seen with the microscope to the actual size of the object?

  • Resolution
  • Magnification (correct)
  • Staining
  • Contrast
  • What is used to enhance the contrast when observing cells through a microscope?

  • Magnification
  • Cells
  • Resolution
  • Stains (correct)
  • Which staining method differentiates between cells?

    <p>Differential stains</p> Signup and view all the answers

    What is the minimum distance between two points at which they can both be seen as two separate points called?

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

    Which scientist detected living cells, such as bacteria and protozoa, under the microscope?

    <p>Antonie van Leeuwenhoek</p> Signup and view all the answers

    What is the primary difference between bright-field microscopy and dark-field microscopy?

    <p>The presence of an opaque plate in dark-field microscopy</p> Signup and view all the answers

    Which type of microscope is suitable for studying the internal structure of cells?

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

    What is the defining characteristic of prokaryotic cells?

    <p>Absence of membrane-bound organelles</p> Signup and view all the answers

    What is the function of the inclusions found in prokaryotic cells?

    <p>DNA storage</p> Signup and view all the answers

    Which component is present in bacterial cell walls but absent in Archae bacterial cell walls?

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

    What type of ribosomes are typically found in prokaryotic cells?

    <p>70S ribosomes</p> Signup and view all the answers

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