haem |
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| navigate by keyword : heme haem protoheme porphyrin chemical formula structure hemoglobin precursor blood oxygen transport myoglobin iron atom nitrogen plane ring organic compound aromatic biology complex skeletal molecule structural substance molecular atomic element model geometric science research chemistry composition biochemistry health black isolated white background vector |
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| Heme B, haem B, or protoheme IX, chemical formula and structure. Contained in hemoglobin, a protein for oxygen transport. A single iron atom is bound by four nitrogen atoms in a plane porphyrin ring. |
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