Hemoglobin Synthesis and Structure
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Questions and Answers

What is the primary function of the Red blood cell?

  • To manufacture hemoglobin (correct)
  • To manufacture globin
  • To transport oxygen to the tissues
  • To transport carbon dioxide from tissues to the lungs
  • What is the component of hemoglobin that combines with four iron atoms to form heme molecules?

  • Protoporphyrin IX (correct)
  • Globin
  • Polypeptide chains
  • 2,3 Diphosphoglycerate
  • What is the state of hemoglobin that has a higher affinity for oxygen?

  • Active state
  • Relaxed (R) state (correct)
  • Inactive state
  • Tense (T) state
  • What is the molecule that is sometimes a resident in the center of the hemoglobin unit?

    <p>2,3 Diphosphoglycerate</p> Signup and view all the answers

    Where are the globin chains produced in red blood cells?

    <p>On specific ribosomes in the cytoplasm</p> Signup and view all the answers

    What determines the type of hemoglobin formed in each hemoglobin molecule?

    <p>The four polypeptide chains</p> Signup and view all the answers

    What is the role of the four iron atoms in hemoglobin synthesis?

    <p>To combine with Protoporphyrin IX to form heme</p> Signup and view all the answers

    What happens to hemoglobin when oxygen binds to it?

    <p>It undergoes a conformational change to the R state</p> Signup and view all the answers

    What determines the type of hemoglobin formed in each hemoglobin molecule?

    <p>The type of globin chains present</p> Signup and view all the answers

    What is the state of hemoglobin in the absence of oxygen?

    <p>T state</p> Signup and view all the answers

    What is the function of the four subunits in hemoglobin?

    <p>To bind to oxygen</p> Signup and view all the answers

    What is the structural change that occurs in hemoglobin when oxygen binds?

    <p>A readjustment of interactions between subunits</p> Signup and view all the answers

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