Blood Connective Tissue and Red Blood Cells: General Properties
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Questions and Answers

What percentage of the total blood volume is made up of blood cells?

  • 45% (correct)
  • 55%
  • 25%
  • 35%
  • What is the primary function of the biconcave shape of red blood cells?

  • To increase the number of red blood cells in the circulatory system
  • To allow the red blood cell to pass through narrow capillaries
  • To reduce the volume of the red blood cell
  • To increase the surface area for gas exchange (correct)
  • What is the purpose of the cytoskeleton under the red blood cell membrane?

  • To allow the red blood cell to change shape when passing through narrow capillaries
  • To maintain the shape of the red blood cell (correct)
  • To determine the blood group of the individual
  • To produce hemoglobin
  • What is the purpose of the glycocalyx (cell coat) on the outer surface of the red blood cell?

    <p>To determine the blood group of the individual</p> Signup and view all the answers

    What is the normal size range for a red blood cell?

    <p>6-9 μm</p> Signup and view all the answers

    Why are red blood cells stained acidophilic in H&E stained sections?

    <p>Due to the presence of hemoglobin</p> Signup and view all the answers

    Which organelle is notably absent in red blood cells?

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

    What is the main function of hemoglobin in red blood cells?

    <p>Transporting oxygen</p> Signup and view all the answers

    What is the purpose of the glycocalyx (cell coat) on the outer surface of red blood cells?

    <p>Determining blood grouping</p> Signup and view all the answers

    Which term refers to the abnormal shape that red blood cells might assume in certain diseases?

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

    In stained sections, why are red blood cells described as acidophilic?

    <p>Because they take up acidic dyes readily</p> Signup and view all the answers

    Which feature of red blood cells allows them to change shape when passing through narrow capillaries?

    <p>Biconcave shape</p> Signup and view all the answers

    What condition results from erythrocytes leaving the circulatory system?

    <p>&quot;Rouleaux&quot; formation</p> Signup and view all the answers

    How do microcytes differ from normal red blood cells in terms of size?

    <p>&quot;Less than 6μm&quot; in size</p> Signup and view all the answers

    Which component under the erythrocyte membrane helps maintain the cell's shape and flexibility?

    <p>&quot;Cytoskeleton&quot;</p> Signup and view all the answers

    What is the primary function of white blood cells in the body?

    <p>Defending against infections.</p> Signup and view all the answers

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