Answer:
Insulin is a polypeptide hormone that are released from the beta cells of the pancreas. Insulin regulates the metabolism of carbohydrate and proteins in the body. The insulin regulates the blood glucose level.
Deficiency of insulin causes diabetes in the individual and needs insulin injection. The insulin injection maintains the blood glucose level. The insulin injections helps the movement of sugar molecules from the blood to the appropriate organs for the storage and hence reduces the blood glucose level. This insulin also inhibits the formation of sugar in the liver and improves the health of ab individual.