Oxygen is carried throughout the body primarily by blood. Specifically, it binds to hemoglobin molecules in red blood cells and is transported from the lungs to tissues and organs that need it for cellular respiration and energy production. While the lungs are critical for the intake of oxygen and the exchange of gases, it is the blood that actually carries the oxygen to various parts of the body. Nerves play a different role in signaling and communication within the body, rather than transporting oxygen.
How is oxygen carried throughout the body?
Question 9 options:
Nerves
Blood
Lungs
1 answer