Determination of oxygen carried by haemoglobin is done by

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Partial pressure of oxygen

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Partial pressure of carbon dioxide

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All of the above

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Solution

The correct option is D All of the above
Haemoglobin is a red coloured iron containing pigment present in the RBCs. Oxygen can bind with haemoglobin in a reversible manner to form oxyhaemoglobin. Each haemoglobin molecule can carry a maximum of four molecules of oxygen. Binding of oxygen with haemoglobin is primarily related to partial pressure of oxygen. Partial pressure of carbon dioxide, hydrogen ion concentration (pH) and temperature are the other factors, which can affect this binding.

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