Most CO₂ is transported to the lungs in which of the following ways? A) dissolved in the plasma B) as carbonic acid C) bound to water D) attached to hemoglobin or as bicarbonate ions

Question

Quizplus · Accepted Answer

Most CO2 is transported in the blood in the form of bicarbonate ions, which are produced when CO2 reacts with water in the presence of the enzyme carbonic anhydrase. Some CO2 also binds to hemoglobin in red blood cells, but this accounts for a smaller proportion of CO2 transport. Only a small amount of CO2 is transported dissolved in the plasma, and it does not typically bind directly to water.

Most CO2 Is Transported to the Lungs in Which of the Following

Most CO₂ Is Transported to the Lungs in Which of the Following