BIO 121 Lecture Notes - Lecture 24: Leukotriene, Isoprene, Emulsion

• School: Tunxis Community College
• Department: Biology
• Course: BIO 121
• Professor: Quilty

Document Summary

Soaps are made by adding fats to lye, a combination of koh and naoh. Two long acyl chains (fatty acids) held together by an ester bond. Van de waal bonds: the partial charges interact at the level of the surfaces there is attraction and repulsion and thus they form a very tough structure. Very common as protective layer: plants, insects. ), the precursor for prostaglandins and leukotrienes (which cause inflammation responses such as in asthma) Inositol lipids, which bear an inositol instead of a more typical head group (inositol is a carbohydrate) Diacylglycerol, which is involved in cell-cell signaling. They are similar to triglycerides, but one carbon of glycerol is linked to a phosphate group and a molecule containing nitrogen. Amphipathic lipids: one end of each molecule is hydrophilic and the other end is hydrophobic. The molecules have head (polar) and tail (non-polar) In water: double layer, head faces the water, tail face each other.