controlling blood glucose

• What is homeostasis primarily about?

  Maintaining a stable internal environment
• How is blood glucose controlled as part of homeostasis?

  Through the hormones insulin and glucagon
• What are the two hormones involved in blood glucose control?

  • Insulin
  • Glucagon
• What happens when you eat food containing carbohydrates?

  Glucose enters the blood from the gut
• What does normal metabolism do to glucose in the blood?

  Moves glucose from the blood into cells
• How does vigorous exercise affect blood glucose levels?

  It removes much more glucose from the blood
• Where can excess glucose be stored?

  As glycogen in the liver and muscles
• Why must blood glucose levels be kept steady?

  To maintain proper body function
• How are changes in blood glucose monitored and controlled?

  By the pancreas using insulin and glucagon
• What type of feedback cycle is involved in blood glucose regulation?

  A negative feedback cycle
• What misconception did people have about the pancreas?

  That it was just a cushion
• What should you learn to understand blood glucose control better?

  • The diagrams related to insulin and glucagon
• What does the graph showing insulin and glucagon secretion rates indicate?

  It shows how they respond to blood glucose levels
• What does the curve representing glucagon indicate as blood glucose levels increase?

  It decreases as blood glucose rises