Hemoglobin is a protein found in red blood cells that plays a crucial role in transporting oxygen from your lungs to the rest of your body, and carbon dioxide from your body back to your lungs to be exhaled.
Key facts about hemoglobin:
Structure: It’s made up of four protein subunits, each containing an iron-containing molecule called heme. The iron in heme binds to oxygen. amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
Function:
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In the lungs: Hemoglobin binds to oxygen.
In the lungs: Hemoglobin binds to oxygen.
In the tissues: Hemoglobin releases oxygen and picks up carbon dioxide.
Color: It gives red blood cells—and blood—their red color. Oxygenated hemoglobin is bright red; deoxygenated is darker.