Red Blood and B12

June 28, 2020

Hemoglobin in red blood cells has 4 heme molecules, each comprising a large ring structure called a porphyrin, at the center of which is iron (Fe) that binds oxygen. B12 also has a porphyrin structure that contains cobalt (Co) at the center. Both heme and B12 absorb blue and green light and reflects red light, giving them their bright red color.

No items found.

X Fact Categories

Share This X Fact