Hemoglobin
Iron is the metal element that carries oxygen in the blood. It is a key component of hemoglobin, the protein in red blood cells that binds to oxygen and transports it throughout the body.
Blood is not always red. The colour is dependant on it's exposure to oxygen. If there is oxygen in the blood it has a red colour. That is why whenever you bleed your blood is red, because it reacts with the oxygen in the air. When there is no oxygen in your blood though, your blood has a blue colour.
Red blood cells.
haemaglobin
Hemoglobin.
Hemoglobin is the part of a red blood cell that gives it the red color and carries oxygen. Hemoglobin is a protein that binds to oxygen in the lungs and releases it to tissues throughout the body.
It gives up oxygen, and carries out carbon dioxide.
blood in the most veins are oxygen poor blood because it gives greenish colour.
It gives up oxygen, and carries out carbon dioxide.
Hemoglobin carries the oxygen in the blood and it gives the red blood cells their color.
The hemoglobin gives the cells its reddish hue and carries oxygen in the cell.
because your oxygenated blood is what gives you colour and if you are being strangled or choking it cuts off the oxygen supply and you go the colour of your de-oxygenated blood.