第6章 脂代谢-2014PPT.ppt

*;*;*;二、脂肪酸;;*;*;*;2、能量的贮存形式 脂肪和蜡 ;Waxes Serve as Energy Stores and Water Repellents. In plankton, waxes are the chief storage form of metabolic fuel. Waxes also serve a diversity of other functions related to their water-repellent properties and their firm consistency.;;*;*;;7、特殊作用：如调节机体密度 The sperm whale：has a spermaceti organ (contains 3,600 kg of spermaceti oil ,a mixture of triacylglycerols and waxes). liquid : about 37℃ Crystallize: about 31℃ Solid: when the temperature drops several more degrees.;*;*;*;*;*;*;;*;*;*;*;2）丙二酸单酰CoA +ACP 丙二酰-ACP+CoA 酰基转移酶(MT) ;*;*;*;*;*;*;*;*;*;;*;*;*;*;;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;*;;*;*;*;*;*;*;*;*;*;*;*;*;