Most of the CO₂ in the blood is transported as A)bicarbonate ions. B)dissolved CO₂ in the plasma. C)carbaminohemoglobin. D)carbonic anhydrase.

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The majority of CO₂ in the blood is transported in the form of bicarbonate ions (HCO3-) which are produced when carbon dioxide (CO2) reacts with water (H2O) in the presence of carbonic anhydrase (an enzyme found in red blood cells). The HCO3- ions can then be transported in the plasma and exchanged for chloride ions (Cl-) in the tissues, which helps to maintain acid-base balance in the body. Carbohydratehemoglobin is formed when CO₂ binds to hemoglobin molecules in red blood cells, but this only accounts for a small proportion of total CO₂ transport.

Most of the CO2 in the Blood Is Transported as

Most of the CO₂ in the Blood Is Transported as