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. And because fats are hydrophobic they aggregate to form large fat globules. Now, what the liver does is it acts as an excretory gland, as an exocrine gland. And what that means is it produces a substance known as bile.