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Bulk of carbon dioxide \left ( CO_{2} \right )  released from body tissues into the blood is present as

Option: 1

bicarbonate in blood plasma and RBC_{S}


Option: 2

free CO_{2} in blood plasma


Option: 3

70% carbamino -haemoglobin and 30% as bicarbonate


Option: 4

carbamino - haemoglobin in RBC_{s}


Answers (1)

best_answer

About 20-25% of carbon dioxide is carried by RBCs as carbamino-haemoglobin, about 7% as dissolved state in plasma and maximum amount of carbon dioxide (nearly 70%) as bicarbonates in blood plasma and RBCs. Thus, the correct answer is option a. 

 

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