第五章脂类代谢 脂类的作用： 储藏物质 结构物质
第五章 脂类代 谢 脂类的作用： 储藏物质 结构物质
Stored Metabolic Fuel in a 70-kg Person Energy (kJ/g dry Dry Weight Available Energy Constituent weight) (g) k Fat (adipose tissue) 37 15,000 555,000 Protein(muscle) 17 6,000 102,000 Glycogen (muscle) 16 120 1,920 Glycogen (liver) 16 70 1,120 Glucose (extracellular fluid) 16 20 320 Total 660.360 Scanning electron micrograph of an adipose cell (fat cell)
Scanning electron micrograph of an adipose cell (fat cell)
C20C0-R1 H-C-0CO-R2 CH20CO-R3 甘油三酰
甘油三酰
Hydrophilic Hydrophobic RRRRRRRP Stearate ion OCCH.CH.CH.CH.CH.CHCH.CHCHCHCHCHCHCHCH.CHC 0 Polar head Hydrocarbon tail group Stearate ion
22 HH CCH CH,CH CHCH,CHCH.C=CCH CH2CH2CH2CH2CH2CH2CH3 Oleate ion (c)Formulas