An oxygen binding curve of fractional saturation versus pO₂ displays a sigmoidal shape.This is the oxygen binding curve for A) myoglobin. B) hemoglobin that has been dissociated into individual subunits. C) hemoglobin in the presence of 2,3-BPG. D) myoglobin in the presence of 2,3-BPG.

Question

Quizplus · Accepted Answer

The sigmoidal shape of the oxygen binding curve is characteristic of hemoglobin, which exhibits cooperative binding. The presence of 2,3-BPG further stabilizes the T-state of hemoglobin, enhancing its cooperative binding and resulting in a sigmoidal curve.

An Oxygen Binding Curve of Fractional Saturation Versus PO2 Displays

An Oxygen Binding Curve of Fractional Saturation Versus PO₂ Displays