Cells will only metabolise (release energy) effectively if the concentration stays fairly steady. Our bodies control the level of glucose in the blood with and glucagon. If the glucose concentration in the blood is too (after a meal), the releases insulin into the bloodstream. This causes the liver to convert glucose to glycogen which is then stored in the liver. If the glucose concentration in the blood is too low (eg. during exercise), the release of stops and the pancreas releases glucagon instead. The glucagon causes the to convert glycogen into glucose and release it into the blood. Complete the diagram below:
Complete the diagram below:
Insulin is an example of a hormone. Hormones are chemical substances that are secreted by glands and are transported in the and affect particular cells. For more infomation see GCSE Science
