About 70% of the CO2 that diffuses into systemic capillaries

A.  directly dissolves in the plasma.
B.   combines with water to form  carbonic acid, which then dissociates into bicarbonate and hydrogen  ions.
C.  binds to hemoglobin.
D.  forms carbonic anhydrase, which combines carbonic acid and water to solubilize the CO2.


B

Anatomy & Physiology

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