Which of the following factors influence the affinity with which the haemoglobin binds to oxygen?
(a) Acidity (pH)
(b) Temperature
(c) Partial pressure of carbon dioxide

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(a), (b) and (c)

Only (b) and (c)

Only (a) and (c)

Only (a) and (b)

answer is D.

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Detailed Solution

The most important factor that determines how much O₂binds to hemoglobin is the pO₂. Several other factors influence the tightness or affinity with which hemoglobin binds O₂ - Temperature, pH, pCO₂, and BPG (2,3-bisphosphoglycerate).

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