Most of the carbon dioxide produced by humans is
A) converted to bicarbonate ions by an enzyme in red blood cells.
B) bound to hemoglobin.
C) transported in the erythrocytes as carbonic acid.
D) simply dissolved in the plasma.
E) bicarbonate ions bound to hemoglobin.

Question

Quizplus · Accepted Answer

Most of the carbon dioxide produced by humans is converted to bicarbonate ions by an enzyme called carbonic anhydrase in red blood cells. This is the primary method of CO2 transport in the blood.

Most of the Carbon Dioxide Produced by Humans Is