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QUESTION
Q175) Bicarbonate ion is produced inside ... [ MPPMT 2000 ]

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Carbon dioxide (CO2) is generated in tissues as a byproduct of normal metabolism. It dissolves in blood plasma to form carbonic acid (H2CO3); red blood cell (RBC) carbonic anhydrase catalyzes this reaction. Carbonic acid then spontaneously dissociates to form bicarbonate (HCO3-) and a hydrogen ion (H+)
Answer : (b)