Oxyhemoglobin and deoxyhemoglobin
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File:Oxy and deoxyhemoglobin.jpg
Oxyhemoglobin and deoxyhemoglobin
Hemoglobin carrying oxygen is referred to as oxyhemoglobin (oxyHb)'. Each Hb molecule can bind 4 oxygen molecules. After the release of oxygen, we speak of deoxyhemoglobin (deoxyHb)'. In both forms, iron is divalent, as only hemoglobin containing FeII+ can reversibly bind and transport an oxygen molecule. Oxygenation of the hemoglobin molecule changes the electron state of the FeII+-heme complex, which is manifested by a change in the color of the dark red shade typical of venous blood to the bright red color of arterial blood. In the human body, about 98.5%[1]oxygen bound to hemoglobin.
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- ↑ KITTNAR, Otomar – ET AL.,. Medical Physiology. 1. edition. Prague : Grada, 2011. 790 pp. pp. 131. ISBN 978-80-247-3068-4.
