1. Insulin is produced by Islets of Langerhans of pancreas.
2. Insulin regulates the level of glucose in the blood.
3. Deficiency of insulin results in disease called ‘diabetes’.
4. Such diabetic patients are given injections of insulin so that the sugar or glucose level in the blood can be controlled.
5. Insulin is now produced in large quantities for the treatment of human sufferers from ‘sugar diabetes’.