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Transport of CO2 as HCO3-

Goal

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    Which of the situations below characterizes the exchange of Cl- and bicarbonate ion between the red cell and plasma in the lungs?

    a)the passage of chloride ion into the cell from the plasma and the passage of bicarbonate ions from the cell into the plasma

    b)the passage of chloride ion into the the plasma from the cell and the passage of bicarbonate ions from the plasma into the cell

    Answer given is a)
     

    Goal

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      :laugh: :laugh:
      And here I was thinking that this thread will be buzzing with answers considering that Dec PBT is just over and there are others who are gearing up for their part 1 exams...............
      Silly me :D
       

      toothie

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        Goal said:
        Which of the situations below characterizes the exchange of Cl- and bicarbonate ion between the red cell and plasma in the lungs?

        a)the passage of chloride ion into the cell from the plasma and the passage of bicarbonate ions from the cell into the plasma

        b)the passage of chloride ion into the the plasma from the cell and the passage of bicarbonate ions from the plasma into the cell

        Answer given is a)
        in the lungs , the bicarb that was initailly formed and transported in the blood is transfered back to the rbc and cl- moves out of the rbc. the bicarb then breaks down to form carbon dioxide and water .co2 diffuses out of the rbc into the lungs.
        thus the answer would be B.
         

        Goal

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          toothie said:
          in the lungs , the bicarb that was initailly formed and transported in the blood is transfered back to the rbc and cl- moves out of the rbc. the bicarb then breaks down to form carbon dioxide and water .co2 diffuses out of the rbc into the lungs.
          thus the answer would be B.


          Thanks a lot toothie :)
           
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