Metabolites and enzyme activities involved in energy metabolism in Taenia solium cysticerci were determined systematically in vivo in order to illustrate the principles of variation of energy metabolism. Metabolites and enzymes determined included GLC, LAC, PEPCK, PK, LDH, SDH, ICD, XOD, ME, GDH, FR, ATPase, ACP, AKP, G6Pase and FE. The results showed that transport of substances, anaerobic gly...