Blood glucose regulation

• Insulin is produced by the pancreas and allows glucose to be moved from the blood into cells where it is used, lowering the blood glucose levels.
• Glucagon is produced by the pancreas, and makes the liver break down glycogen, converting it back into glucose. The stored glucose is then released back into the blood, increasing blood glucose levels.
• Insulin controls the storage of glycogen in the liver and muscles.
• The pancreas uses 2 hormones and a glycogen store in the liver to keep blood glucose fairly constant, via negative feedback control.
• Glucose is the sugar used in respiration.
• Glucagon is a hormone which stimulates the liver to break down glycogen into glucose.
• Glycogen is a storage carbohydrate found in the liver and muscles.
• When glycogen stores are full, any excess glucose is converted into lipids and is stored.