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Protein Molecules

Choose a specific protein molecule and briefly describe its structure and function.
Base your response on a particular molecule, for example, glucose, phosopholipid, or hemoglobin for the respective question above.

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Hemoglobin transports oxygen from the lungs or gills to the rest of the body, such as to the muscles, where it releases the oxygen load. In humans, the hemoglobin molecule is an assembly of four globular protein subunits. Each subunit is composed of a polypeptide chain tightly associated with a non-protein heme group. Each protein chain arranges into a set of alpha-helix structural segments connected together in a globin fold ...