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NEET Biology NEET PYQ-Circulation In Animals Body Fluids

  • question_answer
    Bulk of carbon dioxide \[(C{{O}_{2}})\]released from body tissues into the blood is present as [AIPMT (M) 2011]

    A) bicarbonate in blood plasma and RBCs

    B) free \[C{{O}_{2}}\] in blood plasma

    C) 70% carbamino-haemoglobin and 30% as bicarbonate

    D) carbamino-haemoglobin in RBCs

    Correct Answer: A

    Solution :

    [A] 70-75% of \[C{{O}_{2}}\] is transported as sodium bicarbonate \[(NaHC{{O}_{3}})\] by plasma, and as potassium bicarbonate \[(KHC{{O}_{3}})\] by RBCs.


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