Question 12
Distinguish between Insulin and Glucagon.
Answer
| Insulin | Glucagon |
|---|---|
| Secreted by beta cells of pancreatic islets | Secreted by alpha cells of pancreatic islets |
| Decreases blood glucose levels | Increases blood glucose levels |
| Stimulates glucose uptake by cells for energy or storage | Stimulates liver to convert glycogen into glucose and release it into the bloodstream |
| Promotes glycogen synthesis in liver and muscle | Stimulates gluconeogenesis (production of glucose from non-carbohydrate sources) in the liver |
| Suppresses lipolysis (breakdown of fats) and promotes fat storage | Stimulates lipolysis and promotes release of fatty acids into the bloodstream for energy production |
