Blood before being exposed to Oxygen is a deep red, almost purple. Once exposed it is a bright red. This is due to the reaction of air with the hemoglobin, which uses Iron to bind the oxygen. The Iron gives us the red colour, hence meat that uses hemoglobin and requires lots of oxygen are red whilst meet that requires little oxygen are white.
Hemocyanin contains copper and is found in crustaceans and mollusks. This is the only true blue blood.
Due to skin pigments, blood vessel coverings and an optical effect caused by the way in which light penetrates through the skin, veins typically appear blue in colour. This has led to a common misconception that venous blood is blue before it is exposed to air. Another reason for this misconception is that medical charts always show venous blood as blue in order to distinguish it from arterial blood which is depicted as red on the same chart
2007-06-04 00:06:15
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answer #1
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answered by clint_slicker 6
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You just have to be kidding. You have never seen a picture of a human opened up? You have never seen your own blood? Human blood is NEVER blue. Your veins may look blue through you lilly white skin. But the blood in those vessels is red. Ever thought to ask what color blood a black person assumes to have? Blood is always red. You don't need a scientist to tell you that. The only variation in the color of blood is caused by its oxygen content. Either darker or lighter dependent upon the amount of oxygen.
2016-05-20 23:47:17
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answer #2
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answered by ? 3
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I have heard of it being blue but never green. The blood consists or plasma that is clear to whitish, white blood cells, and red blood cells, so it will always appear red.
2007-06-04 00:09:36
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answer #3
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answered by J 7
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yes, blue-green is right. It's just that as soon as any blood comes out of the veins (where it's deoxygenated, and hence bluish-green), it gets exposed to oxygen and turns red. That's not the case just with the movies, but even when u give a blood sample, it's drawn from some vein, but due to binding with oxygen, the blood turns red. Bye. TC.
2007-06-04 00:16:30
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answer #4
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answered by Ketan P 3
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Oxygenated blood is a deep red colour, because this blood has a larger volume of red blood cells, which give it its red colour. Deoxygenated blood is a blue colour, because it is lacking in red blood cells. Hope that helps.
2007-06-04 00:07:13
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answer #5
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answered by Anonymous
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Our blood is blue when it needs oxygen. Just look at the underside of your arm and you will see a blue vein. When it gets to the lungs and gets a dose of oxygen it will turn red and start the artery journey to distribute the O2.
2007-06-04 00:16:39
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answer #6
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answered by Leepal 5
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very very dark red. I've had my blood drawn directly out of my vein lots of times.
2007-06-04 00:06:52
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answer #7
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answered by Andee 6
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Your friend doesn't have a clue. LMAO!!! Green??? Let's apply a little logic here ok?
2007-06-04 00:05:58
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answer #8
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answered by Anonymous
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Blue.
2007-06-04 00:06:13
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answer #9
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answered by Anonymous
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its blue on the inside
2007-06-04 00:11:06
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answer #10
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answered by Sweety375 4
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