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Questions and Answers
What is the structure of hemoglobin?
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?
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?
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?
What is the measure of cooperativity in hemoglobin binding?
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Why can't hemoglobin be 4 myoglobin (Mb)?
Why can't hemoglobin be 4 myoglobin (Mb)?
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