Multiple choice

Oxygen dissociation curve is

  1. a sigmoid

  2. sloping

  3. a parabola

  4. a straight line

  5. -

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A Correct answer
Explanation

Oxygen dissociation curve is meant for the affinity of oxygen for haemoglobin. It relates oxygen saturation and partial pressure of oxygen in the blood (pO2). It actually explains how readily haemoglobin acquires and releases oxygen molecules from its surrounding tissue. It is sigmoid in nature.