Carbon dioxide is present maximally in: (A) Dissolved form, (B) HCO3 form, (C) RBC's, (D) Plasma
Answer is B. Bicarbonate (HCO3-) is an anion of carbonic acid in which only one of the hydrogen atoms have been removed, as in sodium bicarbonate (NaHCO3). Also called hydrogen carbonate.Ref: Ganong&;s review of medical physiology; 23ed edition, page no: 612