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: The blood cells that carry oxygen. Red cells contain hemoglobin and it is the hemoglobin which permits them to transport oxygen (and carbon dioxide). Hemoglobin, aside from being a transport molecule, is a pigment.It gives the cells their red color (and their name).The abbreviation for red blood cells is RBCs.Red blood cells are sometime simply called red cells.emoglobin, aside from being a transport molecule, is a pigment. It gives the cells their red color (and their name). The abbreviation for red blood cells is RBCs. Red blood cells are sometime simply called red cells.