Bound lipid Labile lipid 



Protein-enzyme 

 complex 



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FIG. 4A. Mechanism of Sensitizing Action of Fat Solvents on Insect Cuticle. 

 Mosaic arrangement of bound and labile lipid in lipoprotein framework of cuticle 

 of blowfly larvae. A lamellar distribution of labile lipid is shown in the epicuticle 

 and endocuticle. 



28 



