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  4. 23% amount of CO2 is transported in the blood as

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Q. 23% amount of $CO_{2}$ is transported in the blood as

NTA AbhyasNTA Abhyas 2020Breathing and Exchange of Gases

Solution:

Carbon dioxide is transported in the blood from the tissue to the lungs in three ways: 1 (i) 7% dissolved in solution; (ii) 70 % as bicarbonates; (iii) 23% bound to proteins, particularly haemoglobin. Approximately 20 to 25% of carbon dioxide is transport in the red blood cell and 75% in the plasma.