Final answer:
Lipid catabolism is the process of breaking down lipids into smaller molecules, releasing energy in the process. It occurs in multiple stages and produces ATP through oxidative phosphorylation.
Step-by-step explanation:
Lipid catabolism is the process by which lipids are broken down into smaller molecules. It is a catabolic process that releases energy. Lipid catabolism occurs in multiple stages, starting with the breakdown of triglycerides and phospholipids into glycerol and fatty acids. Glycerol can be further degraded through glycolysis, while fatty acids undergo beta-oxidation to produce acetyl-CoA. Acetyl-CoA then enters the Krebs cycle, where it is completely degraded to produce ATP through oxidative phosphorylation.