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What gives blood it’s red color?

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8 comments

  1. Denita Reply:

    Along with providing muscles with oxygen, iron is what gives blood its red color. Iron strengthens the immune system, increasing resistance to colds, diseases Detail:http://www.ehow.com/facts_5620366_importance-iron-food_.html

  2. Dierdre Reply:

    Blood contains iron, when the blood is carying oxygen the iron oxidizes (rusts) and it appars read. When the blood is not carying oxygen it isn’t oxidized and it appears blue.

  3. Cari Reply:

    what gives bloods its red color More:http://wiki.answers.com/Q/What_substance_gives_the_blood_its_red_color

  4. Annabelle Reply:

    A love story between hemoglobin, iron and oxygen. Quick answer: Actually blood is blue inside the body. Once exposed to oxygen, it turns red. What gives it the color is iron (Fe), and hemoglobin. Hemoglobin turns red when it has oxygen in i… More:http://wiki.answers.com/Q/What_gives_blood_the_red_color

  5. Eula Reply:

    Hemoglobin’s iron Red blood cells contain hemoglobin, a substance which is rich in iron. The iron is bound to the hemoglobin molecules (the protein). The iron atom that is complexed by "haem" units is what gives the color. Iron is a transit… More:http://wiki.answers.com/Q/What_gives_red_blood_cells_their_color

  6. Zulma Reply:

    what determines wheather blood is a bright red color or a dull brick red color?

  7. Kalyn Reply:

    It is hemoglobin that gives blood its red color! However, it depends on how much oxygen is bound! Oxygenated blood in the systemic arteries are the conventional red color you are thinking about! However, deoxygentated blood, like in the systemic veins, is a deep reddish-purple (NOT blue)! Peripheral veins only look blue because of the deep red blood and the several layers of tissue light has to pass through! The color change occurs because as oxygen binds to the heme unit of hemoglobin, a conformation change takes place that affects the wavelengths at which hemoglobin absorb light!ps! I just saw the above response, and yes, hemoglobin IS a protein!

  8. Jonie Reply:

    Actually blood is blue inside the body. Once exposed to oxygen, it turns red. What gives it the color is iron (Fe), and hemoglobin. Hemoglobin turns red when it

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