4. Transformation
The body's essential building blocks 
are changed (transformed) to be used in other ways.
The liver uses enzymes to transform small building blocks (amino acids, sugars, and fatty acids) into other building blocks. An excess of one of these enzymes, alanine aminotransferase (ALT), is found in the blood when liver cells have been damaged.
The liver, which inactivates several hormones, regulates the amount of testosterone and estrogen in the blood. It also plays a major role in breaking down and building up cholesterol.
Location of the liverFunctions of the liver:Purification
Functions of the liver: Synthesis
Functions of the liver: Storage
Functions of the liver:TransformationArchitecture of the normal liver
