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  2. Hemoglobin - Wikipedia

    en.wikipedia.org/wiki/Hemoglobin

    Hemoglobin (haemoglobin, [a] Hb or Hgb) is a protein containing iron that facilitates the transportation of oxygen in red blood cells.Almost all vertebrates contain hemoglobin, [3] with the sole exception of the fish family Channichthyidae. [4]

  3. Red blood cell - Wikipedia

    en.wikipedia.org/wiki/Red_blood_cell

    Each human red blood cell contains approximately 270 million hemoglobin molecules. [3] The cell membrane is composed of proteins and lipids , and this structure provides properties essential for physiological cell function such as deformability and stability of the blood cell while traversing the circulatory system and specifically the ...

  4. Blood cell - Wikipedia

    en.wikipedia.org/wiki/Blood_cell

    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] Red blood cells are the most abundant cell in the blood, accounting for about 40-45% of its volume. Red blood cells are circular ...

  5. America’s blood supply is in crisis. Here’s how school blood ...

    www.aol.com/america-blood-supply-crisis-school...

    Red blood cells contain hemoglobin, a protein that carries oxygen. In most people, red blood cells are round and move easily through small blood vessels to carry oxygen to all parts of the body.

  6. Blood - Wikipedia

    en.wikipedia.org/wiki/Blood

    The blood cells are mainly red blood cells (erythrocytes), white blood cells (leukocytes), and (in mammals) platelets (thrombocytes). [3] The most abundant cells are red blood cells. [4] These contain hemoglobin, which facilitates oxygen transport by reversibly binding to it, increasing its solubility. [5]

  7. List of human blood components - Wikipedia

    en.wikipedia.org/wiki/List_of_human_blood_components

    Hemoglobin metabolite 2-14 ... Needed for nerve cells, red blood cells, and to make DNA 6-14 ...

  8. 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 ]

  9. Heme - Wikipedia

    en.wikipedia.org/wiki/Heme

    Hemes are most commonly recognized as components of hemoglobin, the red pigment in blood, but are also found in a number of other biologically important hemoproteins such as myoglobin, cytochromes, catalases, heme peroxidase, and endothelial nitric oxide synthase. [8] [9] The word haem is derived from Greek αἷμα haima 'blood'.