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Red Blood Cell Membrane Structure
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Red Blood Cell Membrane Structure

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Questions and Answers

Which component of the Red Blood Cell membrane accounts for the location of many RBC antigens?

  • Spectrin
  • Glycophorin (correct)
  • Ankyrin
  • Actin
  • Approximately what percentage of the Red Blood Cell membrane is comprised of proteins?

  • 25%
  • 52% (correct)
  • 75%
  • 40%
  • Which Red Blood Cell membrane protein is a principal RBC glycoprotein containing 60% carbohydrates?

  • Spectrin
  • Actin (band 5)
  • Glycophorin D (correct)
  • Anion exchange-channel Protein (band 3)
  • Which protein binds with other peripheral proteins to form a skeletal network of microfilaments on the inner surface of the Red Blood Cell membrane?

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

    Which protein is an important factor in maintaining Red Blood Cell membrane integrity?

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

    Which Red Blood Cell membrane protein is an integral protein extending from the outer surface to the inner cytoplasmic side of the RBC?

    <p>Anion exchange-channel Protein (band 3)</p> Signup and view all the answers

    What is the main function of Glycophorin in the Red Blood Cell membrane?

    <p>Provides a negative charge to RBC</p> Signup and view all the answers

    Which component makes up approximately 40% of the Red Blood Cell membrane?

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

    What is the role of Spectrin in the Red Blood Cell membrane?

    <p>'Scaffolding' for other proteins</p> Signup and view all the answers

    What is the approximate composition of lipids in the Red Blood Cell membrane?

    <p>40%</p> Signup and view all the answers

    Which protein on the Red Blood Cell membrane is responsible for giving the RBC its negative charge?

    <p>Anion exchange-channel Protein (band 3)</p> Signup and view all the answers

    Which protein forms a skeletal network of microfilaments on the inner surface of the Red Blood Cell membrane?

    <p>Ankyrin (band 2.1)</p> Signup and view all the answers

    Which Red Blood Cell membrane protein is composed of an α chain and a β chain?

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

    What percentage of the Red Blood Cell membrane is comprised of carbohydrates?

    <p>20%</p> Signup and view all the answers

    Which protein spans the entire thickness of the lipid bilayer on the Red Blood Cell membrane?

    <p>Glycophorin D</p> Signup and view all the answers

    What is the main function of Band 4.2 in the Red Blood Cell membrane?

    <p>Anchoring the lipid bilayer to the cytoskeleton</p> Signup and view all the answers

    Which protein in the Red Blood Cell membrane is most abundant in the cytoskeleton?

    <p>Ankyrin (band 2.1)</p> Signup and view all the answers

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