The Oxygen Hits The Chemicals In The Blood Turning It Red Instantly, But Even Though Your Body Has Oxygen In It And Through The Blood It Needs A Certain Amount To Do That.
When blood is exposed to air it turns red.
it is because the air makes it red
hemoglobin
Hemoglobin
Haemoglobin
Hemoglobin makes the red color.
oxygen
Haemoglobin
By most mammals it's red. The blue color of the veins can be explained by the fact that you see your veins through your skin, your skin works like a sort of color filter, but the blood is always red
Red blood cells (erythrocytes), are red in color because they contain hemoglobin. The heme component of hemoglobin contains iron, thus giving it a red color.
red, to remember this all you have to do is think of death that makes you think of blood and blood is red.
Oxygen is the gas transported by red blood cells that gives them a bright red color.
Hemoglobin is a complex protein carried by erythrocytes (red blood cells). Hemoglobin transports oxygen from the respiratory organ(s) to the cells, and carbon dioxide from the cells to the respiratory organ(s). Because hemoglobin contains iron, and iron, when combined with oxygen, demonstrates a characteristic red color, hemoglobin causes blood to appear red (oxygenated blood is bright red, deoxygenated blood is a dark red, sometimes with a bluish hue). Because hemoglobin appears red, it can cause skin color to appear reddish or flushed/blushed (erythematic). As it breaks down, hemoglobin loses its reddish color and may instead appear blue, yellow, brown, purple, or even black. This is why bruises initially appear red, but then may change colors.
The heme group of the oxygen binding hemoglobin gives blood it's red color.
Spiders have blue blood. In human blood oxygen is bound to hemoglobin which contains iron, giving it the blood a red color. In spiders, as well as other Arthropods and Molluscs, oxygen is bound to hemocyanin which contains copper, giving its blood a blue color. The same interaction that causes oxygenated blood to color, also causes iron rust to appear reddish and the oxidized copper to appear green. However, I have noticed no color in spider blood before.
Blood is always red (NEVER blue) because of hemoglobin, the main factor in blood's color. Deoxygenated hemoglobin is dark red, while oxygen enriched hemoglobin is more cherry red. The common misconception that deoxygenated blood in your veins is blue stems from textbooks that show arteries in red and veins in blue for simplicity. Also, your veins appear blue through your skin because of a variety of reasons only weakly dependent on the color of the blood. Light scattering in the skin, and the visual processing of color play roles as well. If arteries were near the skin surface, they would appear blue as well. Cameras inserted in veins during medical procedures clearly show that blood in veins is red, and when drawing blood from veins in a way that doesn't expose it to the air, it is clearly a dark red color and not blue.
This would be arterial bleeding - bright red pertains to oxygen-rich blood and the squirting is because of the pressure from the heart. Venous blood will appear dark, and oxygenated blood from the arteries will appear bright red in color.