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.
The oxygen molecules bind to the iron ions which sit in the middle of the haem group of haemoglobin which is the main component of red blood cells. Edit. Share to: 1  An Introduction to Molecules A molecule is one of the most fundamental building blocks of the universe.aemoglobin (Hb) is a red coloured protein pigment found within Red Blood Cells  It consists of two basic parts   the iron containing pigment haem  the protein globin . 8 people found this useful.