Final answer:
Insulin is the hormone that lowers blood glucose levels. It promotes the absorption of glucose into cells and inhibits the production of glucose by the liver. Low insulin levels have the opposite effects, which occur in people with diabetes.
Step-by-step explanation:
Insulin is the hormone that lowers blood glucose levels. It is produced by the pancreas in response to rising blood glucose levels and allows cells to utilize blood glucose and store excess glucose for later use. When the blood glucose level is high, insulin promotes the absorption of glucose into the liver, fat, and muscle cells, converting it into glycogen or fats. High levels of insulin also inhibit the production of glucose by the liver. Conversely, low insulin levels have the opposite effects, which occur in people with diabetes.