Nos.: For Out-patient Concerns â MMC Trunk line: (0632)8888-999 local 7330 / Direct line (0632)893-6064 / Grandstream: local (0632)908-6900 local 1375. For In-patient Concerns â MMC Trunkline (0632)8888-999 local 7331. Hours: 7AM â 7PM Mondays to Fridays, Saturday 7AM â 4PM. (CLOSED DURING SUNDAYS AND HOLIDAYS).
The Heme Group. In hemoglobin, each subunit contains a heme group, which is displayed using the ball-and-stick representation in Figure 2. Each heme group contains an iron atom that is able to bind to one oxygen (O 2) molecule. Therefore, each hemoglobin protein can bind four oxygen molecules. One of the most important classes of chelating agents in nature are the porphyrins.
Hemoglobin binds oxygen by rusting on the atomic level. The hemoglobin molecule in red blood cells is what the U.S. Department of Energy's Office of Science calls a metalloprotein.. That is, it is a protein that incorporates some metal, iron in this case, into its structure.