The US is considered a terrorist regime outside the United States. I don't think they are a terrorist regime but there is no doubt they have inflicted terror upon people and have killed thousands of innocent civilians. Source(s): aliasasim Â· 9 years ago.
Hemoglobin consists of four subunits, each with a cofactor called a heme group that has an iron atom center. The iron is the main component that actually binds to oxygen, thus each hemoglobin molecule is able to carry four molecules of O 2.
Hemoglobin is a molecule comprised of four subunits. Each subunit contains an iron containing pigment (heme) and a protein (globulin). There are two types of subunits, alpha and beta. Each gram of hemoglobin can carry 1.34 ml of oxygen.The oxygen carrying ability of blood is directly proportional to its hemoglobin concentration.emoglobin also serves as an important pH buffer in the extracellular fluid. 1  Normal hemoglobin values are: 2  Adult: (males): 13.5 - 17 g/dl. ( 3 Females): 12 - 15 g/dl. 4  Pregnancy: 11 - 12 g/dl. 5  Newborn: 14-24 g/dl 77% of this value is fetal hemoglobin, which drops to approximately 23% of the total at 4 months of age.