Question

Please answer this question

roblem 4: Read box 17.2 and answer the following: a) what are the ligands in hemoglobin(Hb) and oxygenated hemoglobin (HbO,)?; b) what are the shapes o b and HbO2? c) why carbon monoxide is dangerous?

Answer 1

In haemoglobin a quadridental chigand and has four lone pairs, all of which bonded to central metal ion. The functional past of this is an iron(II) surrounded by all completed molecule called. In haemoglobin each submit contains a heme group. Each heme group contains an iron atom that is able to bind to one oxygen(o_2) molecule therefore each haemoglobin protein can bind four oxygen molecules carbon monoxide on other hand, binds very strongly to the iron in haemoglobin. Once carbon monoxide attaches, it is very difficult to release. So if ion breathe in carbon. Monoxide if stocks to hour haemoglobin and takes up all of the oxygen binding sites. Eventually your blood loses all of its ability to transport o_2 and you suffocate. Because CO bind to haemoglobin so strongly one can be poisoned by CO even at very low concentration. If you are exposed for long period of time.