How many proteins are there in red blood cells?

Red blood cells, or erythrocytes, are the most common blood cells. They deliver oxygen to the body tissues through the blood flow and circulatory system. These cells' cytoplasm contain alot of hemoglobin, an iron-containing biomolecule that binds oxygen, and is what makes the blood's red color. The cell membrane is made of PROTEINS and lipids, which provides properties essential for physiological cell function (like deformability and stability) while traversing the circulatory system.