Red Blood Cells and Hemoglobin Quiz
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Questions and Answers

What is the lifespan of a red blood cell (RBC)?

  • 14 days
  • 4 days (correct)
  • 7 days
  • 30 days
  • Which element is present in each heme of the hemoglobin molecule?

  • Sodium (Na)
  • Calcium (Ca)
  • Magnesium (Mg)
  • Iron (Fe) (correct)
  • What is the function of hemoglobin in red blood cells?

  • Energy production
  • Oxygen transport (correct)
  • Waste removal
  • Protects against infections
  • Which blood typing system is based on the presence of A and B antigens on the RBC cell membrane?

    <p>ABO blood group system</p> Signup and view all the answers

    How many oxygen molecules can each hemoglobin molecule carry?

    <p>4</p> Signup and view all the answers

    Which process allows hemoglobin to combine with CO2 to form carbaminohemoglobin?

    <p><strong>Diffusion</strong></p> Signup and view all the answers

    Where does erythropoiesis (RBC production) primarily occur?

    <p>In red bone marrow</p> Signup and view all the answers

    What characterizes reticulocytes during the process of erythropoiesis?

    <p>They lose organelles and develop into mature RBCs within days</p> Signup and view all the answers

    What is the average lifespan of a mature RBC in the circulation?

    <p>120 days</p> Signup and view all the answers

    Which leukocyte type has fine granules in its cytoplasm that stain very pale purple?

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

    Which leukocyte type is an agranulocyte and has a large kidney-shaped nucleus?

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

    What is the primary function of erythrocytes (RBCs) in the human body?

    <p>Transport oxygen from the lungs to body tissues</p> Signup and view all the answers

    Where does hematopoiesis occur in adults?

    <p>Red bone marrow</p> Signup and view all the answers

    Which type of stem cells can no longer divide to reproduce more myeloid stem cells?

    <p>Progenitor cells</p> Signup and view all the answers

    What hormone is responsible for stimulating platelet formation?

    <p>Thrombopoietin (TPO)</p> Signup and view all the answers

    In what medical condition is erythropoietin (EPO) used to reverse RBC production?

    <p>Endstage kidney disease</p> Signup and view all the answers

    Which factor stimulates white blood cell (WBC) formation in cancer patients with bone marrow destruction?

    <p>Colony-stimulating factor (CSF)</p> Signup and view all the answers

    What is the primary function of erythrocytes (red blood cells, RBCs)?

    <p>Circulate oxygen throughout the body</p> Signup and view all the answers

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