Carbon dioxide generated in the tissues is carried in venous blood primarily as

Dissolved gas in plasma

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Carbamino haemoglobin

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Sodium bicarbonate

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Potassium bicarbonate

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Solution

The correct option is C Sodium bicarbonate
Carbon dioxide is carried in the venous blood from the tissue in different ways. It is either dissolved in the plasma and transported or it is transported as carbaminohemoglobin. However, carbon dioxide generated in the tissues is carried in venous blood primarily as sodium bicarbonate in venous blood.
Thus, the correct answer is 'Sodium bicarbonate.'

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