In this case, the pancreas releases a hormone known as glucagon. And glucagon acts on liver cells and it causes, it stimulates those liver cells to break down glycogen into glucose and release that glucose into that blood, maintaining a proper level of glucose inside the blood. On top of that, it also stimulates our liver cells to undergo process known as gluconeogenesis. And gluconyogenesis is the production of glucose of sugar molecules from non sugar constituents such as for example, lactic acid and other precursors. Now, let's move on to fat metabolism. So we know that when we ingest our lipids or fats, they eventually end up in the small test and inside the small test.