regulating glucose

• Blood glucose concentration is the amount of sugar in our blood stream.
• A rise in glucose levels is detected by the pancreas.

  • The pancreas then releases insulin into the bloodstream.
• As insulin is traveling around the body;

  • Insulin will bind to the receptors on certain cells which tells those cells to take in some of the glucose in the bloodstream.

  Most importantly, our liver and muscle cells.
• Liver and muscle cells combine the glucose molecules to form glycogen.

  • Glycogen is a long-term storage of glucose.

  This makes the blood glucose concentration decrease.
• Glucagon is a hormone that increases blood glucose concentration.

  • It is released from the pancreas.
• If our blood glucose concentration is too low;

  • The pancreas secretes glucagon into the bloodstream.

  Glucagon will mainly bind to liver cells.

  • The liver cells will break down glycogen into glucose molecules and release it back into the blood.

  This increases the blood glucose concentration.
• A) Glucagon

  B) Insulin

  C) Negative

  D) Feedback