Final answer:
Blood glucose levels rise after a meal, causing the release of insulin and the decrease of glucagon. This helps in reducing blood glucose levels and storing excess glucose as glycogen in the liver. These changes occur shortly after a meal.
Step-by-step explanation:
When we eat a meal, blood glucose levels increase. In response to this, beta cells in the pancreas release insulin into the blood, which helps reduce blood glucose levels. The excess glucose is converted to glycogen in the liver. Glucagon plays the opposite role and is released when blood glucose levels are low, stimulating the breakdown of glycogen into glucose and raising blood glucose levels. These changes occur within minutes after a meal.
Learn more about Blood glucose regulation