So I think we've heard of the myth that your blood is naturally blue, however, it only turns red because of its reaction with oxygen (which seems absurd). I've searched around the net, but I've gotten mixed answers.
-
Human blood is red, ranging from bright red when oxygenated to dark red when not. It owes its colour to hemoglobin, a metalloprotein compound containing iron in the form of heme, to which oxygen binds. There exists a popular misconception that deoxygenated blood is blue and that blood only becomes red when it comes into contact with oxygen. Blood is never blue, but veins appear blue because light is diffused by skin. Moreover, the blood inside is dark red and exhibits poor light reflection. From a physiological perspective, veins and arteries appear similar when skin is removed and are seen directly.
Blood details ...all ..:
http://en.wikipedia.org/wiki/Blood#Const…
Blood details ...all ..:
http://en.wikipedia.org/wiki/Blood#Const…
-
The colouration of blood is due to the molecule Haemoglobin which is a ring-like structure (called a Porphyrin Ring) which holds in its centre an atom of Iron. It is Haemoglobin that carries oxygen around the body, binding to it as Oxy-Haemoglobin.
As the Iron in the Haemoglobin binds to Oxygen, the electrons in the Iron atom change excitation state. The observable result of this is that they reflect a slightly different wavelength of light.
Whereas Haemoglobin is a purple / dark red colour, Oxy-Haemoglobin is a much brighter red.
Under most normal conditions, blood is observed in the presence of Oxygen. If you cut a vein the purple-ish blood in the vein turns instantly bright red as it bleeds out and comes in contact with the Oxygen in the air. But if you insert a syringe into a vein and draw out blood without allowing any contact with air (something which, as a Physiology student, I did many times in lab practicals), you will observe the much darker purple-ish colour.
As the Iron in the Haemoglobin binds to Oxygen, the electrons in the Iron atom change excitation state. The observable result of this is that they reflect a slightly different wavelength of light.
Whereas Haemoglobin is a purple / dark red colour, Oxy-Haemoglobin is a much brighter red.
Under most normal conditions, blood is observed in the presence of Oxygen. If you cut a vein the purple-ish blood in the vein turns instantly bright red as it bleeds out and comes in contact with the Oxygen in the air. But if you insert a syringe into a vein and draw out blood without allowing any contact with air (something which, as a Physiology student, I did many times in lab practicals), you will observe the much darker purple-ish colour.
-
I think that you think that its absured that or blood touches oxygen inside our bodys. Blood is needed in the lungs eitch contain oxygen. And look at your vains dint you see the blue?
-
No, blood is not blue that's just the veins. Blood is always red.
-
Since blood always contact with oxygen so no it is not, turn blue because reaction with H2CO3
-
Yes it is