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No. Insulin is a protein hormone composed of two polypeptide chains (A and B) in its active form. The main function of insulin is to lower the level of blood sugar and stimulates the utilization of glucose by affecting the rate of transport of glucose across the cell membrane. Insulin is secreted by the islets of Langerhans in the pancreas and also has anabolic effects on protein and lipid metabolism.

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7y ago

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