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NEET2017ZoologyBreathing and Exchange of GasesActual

Oxygen dissociation curve of haemoglobin is

Options

  1. Asigmoid
  2. Bhyperbolic
  3. Clinear
  4. Dhypobolic

Correct answer

A. sigmoid

Step-by-step solution

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 38^ C and pH 7.4. Dissociation of oxyhaemoglobin can be promoted by rise in the body temperature and low pH ( . high . CO ₂ ) .

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