Question

question 9
in which form does most oxygen travel within the blood?
bound to hemoglobin in red blood cells
as a gas
dissolved in blood
bound to bicarbonate

Explanation:

Oxygen is transported in the blood. Hemoglobin in red blood cells has a high affinity for oxygen. Only a small amount of oxygen is dissolved in blood plasma (as a gas or simply dissolved). Bicarbonate is more related to carbon dioxide transport.

Answer:

Bound to hemoglobin in red blood cells