How are oxygen & carbon dioxide transported in the blood?
• Oxygen is carried in blood: 1 – bound to hemoglobin (98.5% of all oxygen in the blood) 2 – dissolved in the plasma (1.5%) Because almost all oxygen in the blood is transported by hemoglobin, the relationship between the concentration (partial pressure) of oxygen and hemoglobin saturation (the % of hemoglobin molecules carrying oxygen) is an important one.