red
The hemoglobin turns bright red when it picks up oxygen. However, hemoglobin will also absorb carbon monoxide gas, which is why it is so dangerous.
The red blood cells themselves do not take any action to get more oxygen, but the kidneys sense a lack of oxygen and produce more erythropoietin (hormone responsible for producing red blood cells) and this in turn increases oxygen levels
then they are red if they are not carrying oxygen then they are a purple red.
The Red Blood Cells remove wastes from your cells.
Red blood cells transport oxygen to cells and remove carbon dioxide from the body as they circulate through the bloodstream. Their characteristic red color comes from the iron-containing protein called hemoglobin, which binds to oxygen and carries it to tissues.
iron. the blood contains iron and when you breathe, you give oxygen to it. so your blood is red pretty much because of oxidized iron. the red blood cells take the oxygen through the body and when it is deposited the blood turns blue, that's why the veins in your wrist are blue.
the answer is that i dont know
Capillaries change color as they pass by body cells as the blood they contain loses oxygen. Oxygen-rich blood has a brighter color than oxygen-poor blood.
Human blood has red color when oxygenated which is mainly because of red blood cells. Its color changes to purple when present in oxygen deprived circumstances. To restore the color the blood has to be placed in oxygen rich environment.
Red blood cells.
The red blood cells themselves do not take any action to get more oxygen, but the kidneys sense a lack of oxygen and produce more erythropoietin (hormone responsible for producing red blood cells) and this in turn increases oxygen levels
the red blood cells
Hemoglobin is the protein in red blood cells that carries oxygen, giving blood its red color.
Blood changes color at the lungs because it unloads carbon dioxide and absorbs oxygen. Red blood cells that are carrying oxygen are a brighter red color than red blood cells that are depleted of oxygen.
red blood cells
Maybe blood cells? :0
Hemoglobin carries the oxygen in the blood and it gives the red blood cells their color.
When blood cells have oxygen they are red, when they have no oxygen they are a darker shade of red.