The cooperative binding of one oxygen molecule to hemoglobin causes a conformational change that increases its affinity for oxygen. This explains the sigmoidal shape of the oxygen dissociation curve, featuring a slow initial phase, a steep gradient in the middle, and a plateau at the end.
La union cooperativa de una molécula de oxígeno con la hemoglobina causa un cambio conformacional que aumenta su afinidad por el oxígeno. Esto explica la forma sigmoidea de la curva de disociación de oxígeno, con una fase inicial lenta, un gradiente pronunciado en el medio y una meseta final.
| Front | Explain how the binding of oxygen affects haemoglobin's affinity for oxygen and how this explains the shape of the oxygen dissociation curve. |
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| Back | Cooperative binding of oxygen:
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