Question

WHY IS HAEMOGLOBIN CALLED OXYGEN CARRIER??​

Answer 1

Explanation:

Hemoglobin: The protein inside red blood cells (a) that carries oxygen to cells and carbon dioxide to the lungs is hemoglobin (b). ... This is because the hemoglobin molecule changes its shape, or conformation, as oxygen binds. The fourth oxygen is then more difficult to bind.

Answer 2

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Haemoglobin is the respiratory pigment. It plays very important role in transport of oxygen. Hence Haemoglobin is called oxygen carrier.