A) more steep
B) straight
C) parabola
D) All of the above
Correct Answer: A
Solution :
The oxygen haemoglobin dissociation curve is sigmoid, which represents the relationship between\[{{\text{O}}_{\text{2}}}\]concentration and percentage saturation of Hb. The rise in temperature or fall in pH sifts the curve to the right while at decreased temperature and rise in pH the curve becomes more steep. The steep rise of the curve indicates the high affinity of haemoglobin for oxygen.
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