Glucagon Concentration in Circulation Quiz

In the normal state, circulating glucagon concentrations are in the nanomolar range.

During fasting with plasma glucose levels around 5 mmol/L, glucagon is secreted in high levels resulting in plasma concentrations above 20 pmol/L.

Circulating glucagon levels may decrease 3-4 times below basal levels during hypoglycemia.

During hyperglycemia, the levels of glucagon secreted are very high.

Blue squares on the graph represent glucose levels during hypoglycemia.

Stable blood glucose concentration during exercise is primarily due to increased insulin secretion.