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Hemoglobin
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Hemoglobin

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Questions and Answers

What is the structure of hemoglobin?

  • α4 β4 tetramer
  • α2 β2 tetramer (correct)
  • α3 β3 tetramer
  • α1 β1 tetramer

    • What triggers a conformational change in adjacent subunits of hemoglobin?

  • O2 binding to a Hb subunit in the T form (correct)
  • Deoxygenation of Hb subunit in the R form
  • Increase in pH in the surrounding environment
  • Binding of CO2 to a Hb subunit

    • At what pO2 in the lungs does hemoglobin have a high affinity for O2?

  • 13.3 kPa (correct)
  • 10 kPa
  • 20 kPa
  • 15 kPa

    • What is the measure of cooperativity in hemoglobin binding?

    <p>The Hill Equation</p> Signup and view all the answers

    Why can't hemoglobin be 4ï‚´ myoglobin (Mb)?

    <p>Hemoglobin exhibits positive cooperativity</p> Signup and view all the answers

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