Triglyceride catabolic pathways

Fig. 6.9. Some pathways of triglyceride catabolism and hexose assimilation. ...

Know pathways of triglyceride biosynthesis and catabolism, the /3-oxidative pathway, and pathways for the degradation of pro-pionyl-CoA, branched fatty acids, and unsaturated fatty acids identify cofactors required calculate ATP yields for fatty acid oxidation know the identity of key enzymes in each pathway. 

Lipotrophic factors. This figure outlines various pathways for lecithin (phosphatidylcholine) formation. Lecithin is essential for transport of triglycerides from liver to adipose (or muscle). These include complete de novo synthesis, formation from choline, and remethylation of homocysteine from betaine (a catabolic product of choline). 

The liver also contains pathways for both the synthesis and the oxidation of fatty acids as well as the urea cycle enzymes and many enzymes involved in amino acid catabolism and amino add synthesis. Other important overall reactions catalysed by the liver are the formation of ketone bodies, cholesterol and bile acid synthesis, the synthesis and breakdown of triglycerides. 

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