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Hemoglobin is a molecule that binds to both Oand CO There is an allosteric relationship between the concentrations of Oand CO Hemoglobin's affinity for O2

Hemoglobin is a molecule that binds to both Oand CO There is an allosteric relationship between the concentrations of Oand CO Hemoglobin's affinity for O2 Correct Answer decreases as blood pH decreases

A Choices (B) and (D) are incorrect: Hemoglobin's affinity for O2 decreases as the concentration of H+ increases (or the pH decreases) and as the concentration of CO2 increases (or the concentration of HCO3- increases). Also eliminate (C), as hemoglobin's affinity for oxygen in tissue muscles does not increase during exercise.

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