Degradation is convergent Rubber carotenoid and energy releasing pigment Phospholipid 异戊烯磷酸mn Cholester Triacylglycerols Fatty acids Mevalonate Vitamin K Cholestan tarch Alanine heyl 乙酰辅酶A alanine Acetate Glycogen Glucose rural facetyI-CoA) Acetoacetvl-CoA Eicosanoids Serine Isoleucine Fatty acids Triacylglycerols Citrate 柠檬酸 CDP-diglyceride 草酰乙酸octe The citric (b) acid cycle Synthesis is divergent and energy consumingDegradation is convergent and energy releasing Synthesis is divergent and energy consuming The citric acid cycle 乙酰辅酶A 草酰乙酸 柠檬酸 异戊烯焦磷酸