Membrane Structure and Composition Quiz
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Questions and Answers

Which model envisions the membrane as a fluid bilayer of lipids with a mosaic of associated proteins?

  • The lipid fluid model
  • The fluid mosaic model (correct)
  • The protein mosaic model
  • The lipid bilayer model

    • Which proteins move phospholipids between layers and maintain the lipid asymmetry of the membrane?

  • Integral proteins
  • Translocases (correct)
  • Lipid-anchored proteins
  • Peripheral proteins

    • Which method is used to study the mobility of molecules in living cells?

  • FRET (Fluorescence resonance energy transfer)
  • Western blotting
  • FRAP (Fluorescence recovery after photobleaching) (correct)
  • GFP (Green fluorescent protein) imaging

    • Which region of membrane proteins is composed of hydrophobic amino acids?

    <p>The stretch of hydrophobic amino acids</p> Signup and view all the answers

    Which type of proteins associate with the membrane through another membrane protein?

    <p>Peripheral proteins</p> Signup and view all the answers

    Which type of proteins are associated with the membrane through another membrane protein?

    <p>Peripheral proteins</p> Signup and view all the answers

    What is the composition of the fluid mosaic model of the membrane?

    <p>Fluid mosaic of lipids and proteins</p> Signup and view all the answers

    Which method is used to study the mobility of molecules in living cells?

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

    What region of membrane proteins is composed of hydrophobic amino acids?

    <p>Transmembrane region</p> Signup and view all the answers

    Which proteins move phospholipids between layers and maintain the lipid asymmetry of the membrane?

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

    Which proteins are responsible for moving phospholipids between layers and maintaining the lipid asymmetry of the membrane?

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

    Which type of proteins associate with the membrane through another membrane protein?

    <p>Peripheral proteins</p> Signup and view all the answers

    Which region of membrane proteins is composed of hydrophobic amino acids?

    <p>Transmembrane region</p> Signup and view all the answers

    Which method is used to study the mobility of molecules in living cells?

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

    Which model envisions the membrane as a fluid bilayer of lipids with a mosaic of associated proteins?

    <p>Fluid mosaic model</p> Signup and view all the answers

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