why is the blood red?
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Blood is red because of the hemoglobin inside our red blood cells. Hemoglobin is a protein that forms a complex with iron molecules and together they transport oxygen molecules throughout the body. Iron has the property of reflecting red light and because there is so much iron in our blood, blood looks red.
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5
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Each blood protein is made up called hemes,which are what give blood it's red colour. These molecules binds oxygen . the blood cells are red due to interaction between iron and oxygen.
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