Importance of the Regulation of Blood Glucose Concentration

• Why is it essential that mammals maintain a constant concentration of glucose in the blood?

  For respiration.
• What happens if the glucose concentration is too low?

  Cells will be deprived of energy and die.
• What happens if the glucose concentration is too high?

  The water potential of the blood decreases and creates osmotic problems that can cause dehydration.
• What is the normal concentration of glucose in the blood?

  5 mol dm-3
• Where is glucose obtained from?

  Food, glycogenolysis, and gluconeogenesis.
• Why are the three hormones insulin, glucagon, and adrenaline required?

  As the concentration of glucose in the blood fluctuates depending on eating food or physical activity.