What is the maximum amount of oxygen that can be carried by each haemoglobin molecule?

What is the maximum amount of oxygen that can be carried by each haemoglobin molecule?
  1. 1 molecule of oxygen
  2. 2 molecules of oxygen
  3. 3 molecules of oxygen
  4. 4 molecules of oxygen

Solution

Each haemoglobin molecule can carry a maximum of four molecules of oxygen, when conditions are favorable for the formation of oxyhaemoglobin, such as high pO₂, low pCO₂, lesser H⁺ concentration, and lower temperature.

Asked in: NCERT

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