Biologyhard · Past Paper
What is the Bohr effect?
AHemoglobin's oxygen binding affinity increases with CO2
BHemoglobin's oxygen binding affinity decreases as CO2 or acidity increases
CThe effect of pressure on lung volume
DThe rate of diffusion across the alveolar membrane
✓ Correct Answer: B — Hemoglobin's oxygen binding affinity decreases as CO2 or acidity increases
The Bohr effect describes how higher concentrations of CO2 and lower pH help hemoglobin release oxygen to tissues.
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