Final answer:
When the liver mobilizes fat/protein for energy, it undergoes processes such as glycogenolysis, gluconeogenesis, and lipolysis. These processes convert stored glycogen, amino acids, and triglycerides into glucose and fatty acids for energy production.
Step-by-step explanation:
When the liver mobilizes fat/protein for energy, it undergoes several metabolic processes. Firstly, it converts glycogen back into glucose through a process called glycogenolysis. This glucose is then released into the bloodstream for use by body cells. Secondly, the liver takes up amino acids from the blood and converts them into glucose through gluconeogenesis. Finally, lipolysis occurs which breaks down stored triglycerides into free fatty acids and glycerol. Some of the glycerol is converted into glucose by the liver. These processes collectively provide energy for the body.