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.
(hÄm) The deep red, nonprotein, iron-containing component of hemoglobin that carries oxygen. Heme is a porphyrin with an iron atom at its center. One of the free valence electrons of the iron atom of heme is bound to the hemoglobin molecule, while the other is available for binding to an oxygen atom. A hemoglobin molecule contains four hemes. Chemical formula: C34H32FeN4O4.