Final answer:
Insulin is necessary for glucose metabolism and works with insulin in regulating blood glucose levels. It is produced by the pancreas and plays a crucial role in carbohydrate and fat metabolism.
Step-by-step explanation:
Insulin is necessary for glucose metabolism and works with insulin in regulating blood glucose levels.
It is produced by the beta cells of the pancreas and plays a crucial role in carbohydrate and fat metabolism.
Insulin causes cells in muscle, adipose tissue, and liver to take up glucose from the blood and store it as glycogen.
It also stimulates glycolysis, conversion of excess glucose into glycogen, and inhibits enzymes involved in glycogenolysis and gluconeogenesis.
Additionally, insulin promotes triglyceride and protein synthesis. Insulin and glucagon are part of a negative-feedback system that stabilizes blood glucose levels.