More than half of the blood is plasma. if the plasma is yellow in color, why is blood red?

Blood contains red blood cells. These cells are made up of a protein called hemoglobin contains iron, which gives the red color to our body. Do you know what red blood cells do? They carry oxygen around our body and give energy to all the organs in the body. Our organs need oxygen to function properly.

--

--

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store