There are four nearly-identical individual protein chains in hemoglobin.
In saturated hemoglobin, each hemoglobin molecule can bind to four molecules of oxygen. Therefore, in saturated hemoglobin, there would be a total of four molecules of oxygen bound to each hemoglobin molecule.
Each molecule of hemoglobin can transport up to four molecules of oxygen. Hemoglobin has four heme groups, each of which can bind to one molecule of oxygen.
4 polypeptide chains, each bound to a heme group to form hemoglobing
Haemoglobin combines with four molecules of oxygen.
A hemoglobin molecule can bind up to four oxygen molecules, one at each of its four heme iron sites.
Each Red Blood Cell can carry up to four oxygen molecules, which bind to hemoglobin proteins in the cell. This binding of oxygen to hemoglobin is crucial for the transport of oxygen from the lungs to tissues throughout the body.
Oxygen has two binding sites in a hemoglobin molecule: one on each of the two alpha-beta dimers. This allows each hemoglobin molecule to bind and carry up to four oxygen molecules.
Hemoglobin is a protein, i.e. a molecule, not a cell. About 97% of the "dry content" of red blood cells is hemoglobin. The exact number of hemoglobin protein molecules is not particularly well defined since red blood cells vary in weight but the range could probably be estimated from that 97% statistic.
One RBC contains about 250 million Hemoglobin molecules
250 million X 4 = < 1 billion4- is how many o2 molecules a single HBn carries assuming they are full saturated(which they almost never are)Actually, one hemoglobin molecule can carry 4 molecules of oxygen. There are ~1 billion molecules of oxygen in each RED BLOOD CELL.
Sickle cell hemoglobin can carry one oxygen molecule.
Hemoglobin can carry a maximum of four oxygen atoms. Each hemoglobin molecule consists of four heme groups, each of which can bind to one oxygen molecule, resulting in a total of four oxygen atoms carried by one hemoglobin molecule.