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| Description: Most of the heme comes from breakdown of aged erythrocytes, but some comes from cytochromes and other heme proteins. Heme protein degradation in animals releases amino acids and iron, which are reused, and bilirubin, which must be solubilized for excretion. Picture Stats: Views: 325 Filesize: 122.1kB Height: 875 Width: 451 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=34797 |