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Why does blood change from blue to red when it comes into contact with oxygen?
Wiki User
∙ 11y ago
People say that because the visible veins under your skin have a purple-ish blue color, due to the darkish red deoxygenated blood. Unfortunately, your blood is always red. This is the same misconception as saying Mountain Dew is green because of its green bottle, as an example.
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoArterial blood is a vivid red, while venous blood is dark red. If you've ever seen blood being donated, and in the freeze packs, then this is venous blood.
(Human) blood is always red, and never is blue, at any point in the body. The misconception comes from the purplish appearance of certain veins. This is due to a low-frequency light absorbing property of the fat under the skin - only higher (bluer/purpler) frequency light is reflected from the vein. If the skin and fat happens to be cut away to expose the vein, it can be seen that it shares the dark red colour of the blood inside.
Also 'blue blooded' can refer to royalty. It has no real-life basis.
Wiki User
∙ 13y agoHuman blood is red inside the body, and out. Even 'blue' venous blood in the body is red, but less saturated red than arterial blood.
When blood emerges from the body, it is exposed to air and reacts, becoming fully oxygenated, so it might be a little redder on a cloth than while inside the body.
Wiki User
∙ 13y agoVeins appear to look blue because of the subcutaneous fat that absorbs low frequency light, permitting only the highly energetic blue wavelengths to penetrate through to the dark vein and reflect off.
Wiki User
∙ 14y agoI don't know why its blue in the body,but it turns red because of oxygen.
Wiki User
∙ 9y agoit does not always and the reason it is blue is the the blood cells are deoxygenated
Wiki User
∙ 11y agoBlood is always red, never blue. Our veins look blue because the light is being diffused by our skin. Blood is dark red before it comes into contact with oxygen, and bright red when it does.
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What makes well water change color?
The minerals in the soil where the water comes from. Frequently it is copper. Iron will also cause the water to change color as will oxygen, which will cause minerals in the water to change (iron oxidizes).
Where does most of the oxygen come from?
oxygen mostly comes from our trees & plants
How does the Amazon Rainforest produce oxygen?
20% of the world's oxygen comes from the amazon rainforest.
What causes hydrogen peroxide to bubble?
The reason why it foams or bubble is because blood and cells contain an enzyme called catalase. Since a cut or scrape contains both blood and damaged cells, there is lots of catalase floating around. When the catalase comes in contact with hydrogen peroxide, it turns the hydrogen peroxide (H2O2) into water (H2O) and oxygen gas (O2). H2O2 --> H2O + O2 The reason why it foams or bubble is because blood and cells contain an enzyme called catalase. Since a cut or scrape contains both blood and damaged cells, there is lots of catalase floating around. When the catalase comes in contact with hydrogen peroxide, it turns the hydrogen peroxide (H2O2) into water (H2O) and oxygen gas (O2). H2O2 --> H2O + O2
Where are carbon dioxide and oxygen found in our environment?
At room temperature carbon dioxide (CO2) is a gas; of course this gas can be liquefied or solidified. At room temperature oxygen (O) is a gas; of course this gas can be liquefied or solidified. Oxygen has a diatomic molecule, O2. An allotropic form is ozone, O3. All gases exist also in cylinders, as compressed gases, under high pressure. Also the purity is variable, depending on the scope of use.
What color is blood when it comes into contact with oxygen?
Blood is always red.
Is all of your blood red?
No, blood is really blue until it comes into contact with oxygen
Where does blood go a brighter color?
Blood is bright red due to the high concentrations of oxygen in it. This blood is known as oxygenated blood. Blood that appears dark in color or "blue" is blood that has been used by the body and has a higher concentration of carbon dioxide in it. This blood in known as deoxygenated blood!
Explain why some blood is pictures red and some is pictured blue. How does the blue blood turn red?
once it comes into contact with oxygen it turns red.
Does saliva with hiv infects you when it comes in contact with your blood?
You can't get HIV from saliva. That's true even if it comes in contact with your blood.
What is blood before it goes to the lungs?
Blood goes to the lungs oxygen poor and comes out of the lungs oxygen rich.
What forms when iron comes in contact with oxygen in water?
rust
What takes oxygen into the blood?
Oxygen enters your blood stream in your lungs. Inside your lungs the air pipe branches into smaller pipes which branch a number of times eventually forming 'alveoli'. The great amount of braching increases the surface area so there is more area for oxygen excahnge to occur, making the process more efficient. In the alveoli the capillaries are very close to the surface, so close that the oxygen gas can move across the thin wall into the blood stream. This is facilitated by haemoglobin which attracts and bonds with oxygen molecules.
What happens in rust?
when rust happens iron comes into contact with water and oxygen and rust forms
Blood in the heart chambers comes into contact with the?
epicardium
Oxygen comes into the body through the what?
In humans, oxygen comes into the body through the lungs and is then transported throughout the body by red blood cells.
What brings about rusting of iron?
Oxidisation, which is when the moisture in Oxygen comes into contact with the metal.
