Carbon dioxide is primarily transported in the blood:
A) as dissolved gas.
B) attached to the iron molecule in hemoglobin.
C) as bicarbonate ion.
D) as carbonic acid.

Name: Carbon dioxide is primarily transported in the blood: A) as dissolved gas. B) attached to the iron molecule in hemoglobin. C) as bicarbonate ion. D) as carbonic acid.
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Question

Quizplus · Accepted Answer

Carbon dioxide is primarily transported in the blood as bicarbonate ion, which is formed when CO2 reacts with water in the presence of the enzyme carbonic anhydrase.

Carbon Dioxide Is Primarily Transported in the Blood