How does hemoglobin bring oxygen to cells?

Answer 1

Hemoglobin is the protein that carries oxygen from the lungs to the tissues and carries carbon dioxide from the tissues back to the lungs. In order to function most efficiently, hemoglobin needs to bind to oxygen tightly in the oxygen-rich atmosphere of the lungs and be able to release oxygen rapidly in the relatively oxygen-poor environment of the tissues.

Answer 2

The actual atom that binds oxygen in hemoglobin is a Fe II atom (iron atom in 2+ oxidation state) embedded in the heme moeity of hemoglobin.  The rest of the molecule is basically a scaffold that prevents the Fe II from being oxidized to Fe III (that would be bad, because it would no longer want to bind O2).  The scaffold also serves to optimize the binding and release of oxygen (by making it sensitive to H+/CO2/2,3 BPG concentrations, etc.)

Answer 3

There is an iron atom within all hemoglbin molecules. The iron molecule is used to transport oxygen to the cells.

Answer 4

oxygen binds to hemoglobin in red blood cells to form oxyhemoglobin so oxygen can be transported throughout the body.

Answer 5

The oxygen molecules bind to each of the four iron molecules in the heamoglobin holoenzyme.

Answer 6

Through the red blood cells in your blood.

Answer 7

Each heme unit holds an iron ion in such a way that the iron can interact with an oxygen molecule. This forms an oxyhemoglobin.

Answer 8

Hemoglobin is contained in red blood cells. The red blood cells transport the hemoglobin-oxygen complex to the body tissues, where oxygen diffuses into cells where it is required.

Answer 9

through iron ions