Biology A-Level
pH and affinity
What pH and affinity means in Biology A-Level, as defined for AQA.
Definition of pH and affinity
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Reference: AQA
Hydrogen ions released when carbon dioxide forms carbonic acid lower the pH inside the red blood cell, and this fall in affinity means more oxygen is unloaded.
Topics that use pH and affinity
- Mass transport in animals (AQA A-Level)
Related terms
- affinity
- affinity for oxygen
- atrial systole
- Atrioventricular valves
- biconcave disc
- Biological drawing conventions
- Bohr effect
- Causation
Using pH and affinity in the exam
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