Respiratory System Video Lessons

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Problem: Which of the following is true about oxygen binding to hemoglobin:a. oxygen binding at the four binding sites shows positive cooperativityb. fractional saturation of hemoglobin results in a sigmoidal curvec. the allosteric effector bisphosphoglycerate (BPG) reduces the affinity for oxygend. oxygen is coordinated at the iron center of a heme groupe. all the above statements are true

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Problem Details

Which of the following is true about oxygen binding to hemoglobin:

a. oxygen binding at the four binding sites shows positive cooperativity

b. fractional saturation of hemoglobin results in a sigmoidal curve

c. the allosteric effector bisphosphoglycerate (BPG) reduces the affinity for oxygen

d. oxygen is coordinated at the iron center of a heme group

e. all the above statements are true

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