BRAINCAKEOxygen Dissociation Curve for Haemoglobin
An oxygen dissociation curve shows the percentage saturation of haemoglobin with oxygen (y-axis) at different partial pressures of oxygen, pO2 (x-axis). For haemoglobin the curve is S-shaped (sigmoid).
The shape is explained by cooperative binding:
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More in Circulatory Systems
- Granulocytes
- Agranulocytes
- Platelets
- Haemoglobin and Oxygen Transport
- The Bohr Effect
- Fetal Haemoglobin
- Myoglobin
- Transport of Carbon Dioxide
All 33 lessons in Circulatory Systems · All Edexcel AS-level Biology topics