amples of Lipids Exumples of ximple lipids CH2一O一C一(CH)1wCH H.C CH-0-C-(CH)CH HC 0 HO tristearin.a fat cholesterol,a Meroid 0 CHC15一0一C一(CH14CH spermaceti (cetyl palmitate).a wax a-pinene.a terpene
Examples of Lipids =>
Fats and Oils Most fats have saturated fatty acids. Most oils have unsaturated fatty acids
Fats and Oils ❖Most fats have saturated fatty acids. ❖Most oils have unsaturated fatty acids
不饱和脂防酸 棕榈油酸顺-△9十六碳烯酸) COOH 油酸（顺-△十八碳烯酸） COOH 亚油酸（顺，顺-Δ，2十八碳烯酸） COOH 亚麻酸（顺，顺，顺-△12,15十八碳烯酸） COOH
不饱和脂肪酸 棕榈油酸(顺-Δ9 -十六碳烯酸) COOH 油酸（顺-Δ9-十八碳烯酸） COOH 亚油酸(顺,顺-Δ9,12-十八碳烯酸) COOH 亚麻酸(顺,顺,顺-Δ9,12,15-十八碳烯酸) COOH 油酸（顺-Δ9-十八碳烯酸）
Phospholipids Phospholipids occur widely in both plant and animal tissues Constitute approximately 50%to 60%of cell membranes Organize in cell membrane into a lipid bilayer about 5.0 nm thick Nonpolar tails aggregate in the center ofthe bilayer Bilayer serves as barrier to passage of water,ions, and other components into and out or cells CHa-0 cOUNotih
Phospholipids ❖Phospholipids occur widely in both plant and animal tissues ❖Constitute approximately 50% to 60% of cell membranes ❖Organize in cell membrane into a lipid bilayer about 5.0 nm thick ❑Nonpolar tails aggregate in the center of the bilayer ❑Bilayer serves as barrier to passage of water, ions, and other components into and out or cells
Lipid Bilayer cell membranes are a bilayer of phosphoglycerides 之22
Lipid Bilayer Cell membranes are a bilayer of phosphoglycerides