Oxygen is carried in circulation primarily
A)as a dissolved gas in the plasma.
B)as carbonic acid.
C)bound to hemoglobin in the red blood cells.
D)by white blood cells.
E)None of the choices is correct

Question

Quizplus · Accepted Answer

Oxygen is primarily carried attached to hemoglobin molecules in red blood cells. Only a small portion is dissolved in the plasma. Carbonic acid refers to the transport of CO2 in the blood, not oxygen. White blood cells do not play a significant role in oxygen transport.

Oxygen Is Carried in Circulation Primarily