Many of today's crew-cab pickups have the same legroom as a luxury sedan, and even shoppers who don't go for a crew cab will find that many extended-cab trucks have more passenger room than you'd need under usual circumstances.
n. The protein in the red blood cells of vertebrates that carries oxygen from the lungs to tissues and that consists of four polypeptide subunits, each of which is bound to an iron-containing heme molecule.[Ultimately short for. : hematin + globulin .].. The protein in the red blood cells of vertebrates that carries oxygen from the lungs to tissues and that consists of four polypeptide subunits, each of which is bound to an iron-containing heme molecule. [Ultimately short for.
Red blood cells contain hemoglobin, an iron-containing molecule that binds oxygen. As with rust, the iron compounds turn brighter red when the hemoglobin absorbs oxygen. The b â¦ lood in your veins are blue.ed blood is red because the color of oxyhemoglobin is red because there is iron in oxyhemoglobin, causing that blood red color. Red blood cells are red because the iron in the heme group of the four hemoglobin proteins react with oxygen (think what color rust is) to produce a red color.