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Questions and Answers
Which element in the heme moiety of hemoglobin binds to oxygen?
Which element in the heme moiety of hemoglobin binds to oxygen?
- Zinc
- Magnesium
- Iron (correct)
- Copper
What is the molecular weight of hemoglobin?
What is the molecular weight of hemoglobin?
- 50,000
- 64,450 (correct)
- 75,825
- 40,100
In normal adult human hemoglobin (hemoglobin A), how many pairs of polypeptides are there in each molecule?
In normal adult human hemoglobin (hemoglobin A), how many pairs of polypeptides are there in each molecule?
- 3
- 4
- 6
- 2 (correct)
What causes a decrease in the affinity of hemoglobin for oxygen?
What causes a decrease in the affinity of hemoglobin for oxygen?
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When blood is exposed to oxidizing agents, what change occurs to the iron in hemoglobin?
When blood is exposed to oxidizing agents, what change occurs to the iron in hemoglobin?
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What happens when methemoglobin is present in large quantities in the circulation?
What happens when methemoglobin is present in large quantities in the circulation?
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What enzyme system in red cells converts methemoglobin back to hemoglobin?
What enzyme system in red cells converts methemoglobin back to hemoglobin?
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What is the consequence of carbon monoxide reacting with hemoglobin?
What is the consequence of carbon monoxide reacting with hemoglobin?
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Where is most of the biliverdin converted in humans and excreted?
Where is most of the biliverdin converted in humans and excreted?
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For what condition can phototherapy be used effectively according to the text?
For what condition can phototherapy be used effectively according to the text?
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