BIOL 2021 Lecture Notes - Lecture 11: Saturated Fat, Double Bond, Adipose Tissue
Document Summary
Insoluble in water: soluble in organic solvents and other lipids. Functions of lipids: storage molecules for energy (fats and oils, can get lots of energy from a fat, stored in adipose tissue, structural components of cellular membranes, protective molecules (waxes, hormones and vitamins. Four main classes of lipids: triacylgylcerols (tags) . Storage lipids (non-polar: also known as triglycerides, phosphoacylglycerols . These three have the basic structure of a fatty acid: non-saponifiable lipids steroids, hormones, cholesterol, based on a fused ring structure rather than fatty acids. Fatty acids (fa: long chain carboxylic acids, 12-20 hydrocarbon linear chains (most even #, no hydrogen bonds form between the carboxylic acid functional group. Fatty acids interact through hydrophobic interactions: by nature, fatty acids are amphipathic have both hydrophilic and hydrophobic parts, often have double bonds. Chm333 lecture 21: 3/18/13 spring 2013 professor christine hrycyna: two types. Saturated hydrocarbon has no double bonds.
