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  • Assertion: Carbon dioxide is transported in the blood in the form of bicarbonate ions. Reason: Carbon dioxide reacts with water in re

Assertion: Carbon dioxide is transported in the blood in the form of bicarbonate ions.

Reason: Carbon dioxide reacts with water in red blood cells to form carbonic acid, which then dissociates into bicarbonate ions and hydrogen ions.

Mark the correct choice as: 

Option: 1

If both Assertion and Reason are true and Reason is the correct explanation of Assertion. 
 


Option: 2

If both Assertion and Reason are true but Reason is not the correct explanation of Assertion. 
 


Option: 3

If Assertion is true but Reason is false.

 


Option: 4

If both Assertion and Reason are false.


Answers (1)

best_answer

The majority of CO2 is transported as Bicarbonate ions.  From the tissues CO2 moves down the concentration gradient  and then into RBCs. The enzyme carbonic anhydrase is found in extremely high concentrations in RBCs (erythrocytes), and it is also found in trace amounts in plasma. It aids in catalyzing the conversion of CO2 into carbonic acid which is then  dissociated H+ ions and HCO3-. 

Option a is the correct answer. 

Posted by

himanshu.meshram

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