Cell Biology Size Scales Summary
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Cell Biology Size Scales Summary

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Questions and Answers

What is the size of a 'typical' vertebrate cell?

  • 10 μm (correct)
  • 0.2 mm
  • 1 μm
  • 25 nm

    • What is the size of ribosomes?

  • 25 nm (correct)
  • 10 μm
  • 1 μm
  • 0.2 mm

    • What is the resolution of the light microscope?

  • 0.2 μm (correct)
  • 1 μm
  • 25 nm
  • 0.2 mm

    • What method can be used to localize proteins in fixed cells?

    <p>Immunofluorescence microscopy</p> Signup and view all the answers

    What technique transformed cell biological studies by allowing localization of specific proteins in living cells?

    <p>Fusing proteins to green fluorescent protein (GFP)</p> Signup and view all the answers

    What does TEM allow one to see in cells?

    <p>Very fine detail such as ribosomes and membranes</p> Signup and view all the answers

    Where is the genetic material (DNA) located in prokaryotes?

    <p>In the cytoplasm</p> Signup and view all the answers

    What encloses the genetic material (DNA) in Eukaryotic cells?

    <p>Double membrane</p> Signup and view all the answers

    What is the function of mitochondria in the cell?

    <p>Produce ATP</p> Signup and view all the answers

    Where are chloroplasts found?

    <p>Only in plants</p> Signup and view all the answers

    What do the endoplasmic reticulum and Golgi apparatus have in common?

    <p>Both are membrane-bound organelles</p> Signup and view all the answers

    What accounts for about 50% of the cell volume?

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

    What provides a dynamic three-dimensional framework in the cell?

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

    What do mitochondria and chloroplasts probably evolve from?

    <p>'Engulfed bacteria'</p> Signup and view all the answers

    What is the major protein in microtubules?

    <p>'Tubulin'</p> Signup and view all the answers

    What is the function of the plasma membrane in a cell?

    <p>'Encloses the cell'</p> Signup and view all the answers

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