Lipid are important constituents for an animal body as they serve both in structural makeup and in energy yielding,
but in parasites there is a good deal difference in the mode of procurement of these impartment metabolites. They may be
available to them in digested or semi digested state. In helminthes the fatty acid synthesis is very limited as per the studies of
Ginger and Fairbairn, 1966. In nematode most of lipids located in the hypodermis especially in the lateral cords, muscle cells,
intestinal cells and ovaries. Lipid is the chief food reserve in free living nematode and plant parasitic nematodes.