Concept
Version 15
Created by Boundless
Carbon Dioxide Transport
![Structure of human hemoglobin](../../../../../../../../../figures.boundless-cdn.com/5331/full/1gzx-haemoglobin.jpg)
Structure of human hemoglobin
Hemoglobin is a tetramer of alpha (red) and beta (blue) subunits with iron containing heme groups (green).
This is a color picture of the structure of hemoglobin. It depicts hemoglobin as a tetramer of alpha (red) and beta (blue) subunits with iron-containing heme groups (green).
Source
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