BSCI 105 Lecture Notes - Lecture 6: Glycogen, Hydrolysis, Glycerol
14 Sep 2015
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Document Summary
Glycogen (found in animals) for storage. Cellulose (found in plants) does not make a helix. Hard structure can be used as surgical thread. Building blocks: primarily composed of c and h. Saturated - hydrogens attached to every side of carbon. Molecules pack closely together forming a solid (ex. butter) Unsaturated - double bonds between the hydrogens and carbons allow some carbons to not be joined to a hydrogen. Can not pack together closely because of double bond so can not solidify (ex of unsaturated fat: oil) Trans-fat - man made make unsaturated fats with double bonds saturated in hydrogens, unhealthy for the body. Triglycerides contain a molecules of glycerol plus three fatty acids that bond through an ester bond. Phospholipids (glycerol, fatty acids, phosphate group, other groups) Major lipid in cell membranes, provides as a shell for the cell, allowing the cell to be fluid in water with its hydrophobic parts within. Glycerol (hydrophilic hear) + fatty acid (hydrophobic tail)
