Answer :
When plasma travels through a systemic capillary, most of the co2 is converted to bicarbonate ions.
Blood can move carbon dioxide, which can also be directly dissolved therein, attached to plasma proteins or changed into bicarbonate. The bicarbonate system is used to transfer the majority of carbon dioxide. Diffusion of carbon dioxide into red blood cells. Carbon dioxide is changed inside by carbonic anhydrase into carbonic acid, which is then hydrolyzed into bicarbonate.
Red blood cells release bicarbonate, which then enters the blood plasma. Bicarbonate is transferred back into the red blood cells in the lungs in place of chloride. CO2 is present in the blood throughout this procedure. During this time, 23% of the CO2 is bonded to amino groups like haemoglobin and the remaining 70% is transformed into bicarbonate ions, leaving only about 7% of the CO2 as dissolved CO2.
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