CMST 1A03 Lecture Notes - Cellulose, Toyota Electronic Modulated Suspension, Exocytosis
31 Oct 2013
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Document Summary
Consist only of glucose --- highly branched. Consist only of b-glucose (linked in a diff. way) Carbohydrates -used for fuel energy, storage, cell communication, and structural support. *produced by plants: used by themselves & other organisms. Disaccharide- two monosaccharide joined together by a condensation rxn called glycosidic linkage (covalent bond) Anabolic rxn- reactions that produce large molecules from smaller molecules. Catabolic rxn- reactions that breaks large molecules into smaller ones. Lipids- used for energy storage, important in the construction of plasma membrane. * insoluble in water (hydrophobic) mostly made of hydrocarbons. Triglycerides- consist of 3 fatty acid molecules & 1 glycerol, Close packing in animals from straight chain & kinked chain in plants prevents close packing. 2 fatty acids chain, 1 glycerol & 1 phosphate group. Form bilayer & micelle non-polar hydrocarbon tails polar phosphate head . Nitrogenous bases pyrimidines= 6 member ring c&n: cytosine, thymine, uracil purines= 6 member ring fused with 5 member ring: adenine, guanine.
