Why is the blood in the arteries red?

Answer 1

In Arteries, blood has already obtained the oxygen, which gives blood it's red color.

In veins, blood is returning back to the heart and lungs for oxygen. Oxygen-deprived blood is a bluish/purple.

Answer 2

The binding of oxygen to hemoglobin makes the blood brighter. Thus, most arterial blood is brighter than most venous blood, because it's typically oxygenated. (The exception is the deoxygenated blood of the pulmonary artery)

Answer 3

The blood carried inthe arteries contain oxygen oxygen sticks to the haemoglobin in the red blood cells and the colour of the compound created is bright red

Answer 4

The blood in arteries is being pumped from the heart, where it received oxygen, making it red. The blood in veins is going back to the heart to get oxygen.

Answer 5

The arteries carry blood away from the heart so it has oxygen. It returns in the veins when all of the oxygen is gone

Answer 6

All blood is red. The blood in the systemic arteries is bright red because it is carrying oxygen. Oxygenated hemoglobin gives the blood of the systemic arteries its bright red color.