Question

The majority of oxygen in the blood is transported by ________.

a) Hemoglobin
b) Bicarbonate ions
c) Dissolved in plasma
d) Carbonic acid

Answer 1

The majority of oxygen in the blood is transported by hemoglobin.

Step-by-step explanation:

The majority of oxygen in the blood is transported by hemoglobin. Hemoglobin is a protein found in red blood cells that binds to oxygen molecules and carries them from the lungs to the body's tissues. Hemoglobin can carry up to four oxygen molecules at a time.