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  2. Hemoglobin - Wikipedia

    en.wikipedia.org/wiki/Hemoglobin

    Hemoglobin in the blood carries oxygen from the respiratory organs (lungs or gills) to the other tissues of the body, where it releases the oxygen to enable aerobic respiration which powers an animal's metabolism. A healthy human has 12 to 20 grams of hemoglobin in every 100 mL of blood. Hemoglobin is a metalloprotein, a chromoprotein, and ...

  3. Red blood cell - Wikipedia

    en.wikipedia.org/wiki/Red_blood_cell

    Each hemoglobin molecule carries four heme groups; hemoglobin constitutes about a third of the total cell volume. Hemoglobin is responsible for the transport of more than 98% of the oxygen in the body (the remaining oxygen is carried dissolved in the blood plasma). The red blood cells of an average adult human male store collectively about 2.5 ...

  4. Human iron metabolism - Wikipedia

    en.wikipedia.org/wiki/Human_iron_metabolism

    The human body needs iron for oxygen transport. Oxygen (O 2) is required for the functioning and survival of nearly all cell types. Oxygen is transported from the lungs to the rest of the body bound to the heme group of hemoglobin in red blood cells. In muscles cells, iron binds oxygen to myoglobin, which regulates its release.

  5. Iron in biology - Wikipedia

    en.wikipedia.org/wiki/Iron_in_biology

    Iron in hemoglobin is the source of the red coloration of vertebrate blood. Hemoglobin diagram. Iron is an important biological element. [1] [2] [3] It is used in both the ubiquitous iron-sulfur proteins [1] and in vertebrates it is used in hemoglobin which is essential for blood and oxygen transport. [4]

  6. Blood - Wikipedia

    en.wikipedia.org/wiki/Blood

    Hemoglobin has an oxygen binding capacity between 1.36 and 1.40 ml O 2 per gram hemoglobin, [23] which increases the total blood oxygen capacity seventyfold, [24] compared to if oxygen solely were carried by its solubility of 0.03 ml O 2 per liter blood per mm Hg partial pressure of oxygen (about 100 mm Hg in arteries).

  7. Blood cell - Wikipedia

    en.wikipedia.org/wiki/Blood_cell

    Red blood cells or erythrocytes primarily carry oxygen and collect carbon dioxide through the use of hemoglobin. [2] Hemoglobin is an iron-containing protein that gives red blood cells their color and facilitates transportation of oxygen from the lungs to tissues and carbon dioxide from tissues to the lungs to be exhaled. [3]

  8. Scrooge FedEx driver accused of dumping holiday packages in ...

    www.aol.com/fedex-driver-arrested-dumping...

    A FedEx contract worker has been busted for allegedly dumping dozens of packages in the woods to avoid working late. Latavion Lewis was arrested after a post office in Bonifay, Florida, received ...

  9. Hemoglobin A - Wikipedia

    en.wikipedia.org/wiki/Hemoglobin_A

    Hemoglobin A (HbA), also known as adult hemoglobin, hemoglobin A1 or α 2 β 2, is the most common human hemoglobin tetramer, accounting for over 97% of the total red blood cell hemoglobin. [1] Hemoglobin is an oxygen-binding protein, found in erythrocytes , which transports oxygen from the lungs to the tissues. [ 2 ]