Question
Oxygen dissociation curve of haemoglobin is
sigmoid
hyperbolic
linear
hypobolic
Solution
A.
sigmoid
Oxygen-haemoglobin dissociation curve gives the relationship between the saturation of haemoglobin and oxygen tension.
The curve obtained by plotting the per cent saturation of Hb against time is sigmoid, at 38oC and pH 7.4. Dissociation of oxyhaemoglobin can be promoted by rising in the body temperature and low pH (high CO2)
