BISC 1111 Study Guide - Quiz Guide: Covalent Bond, Lipid Bilayer, Dehydration Reaction
8 Feb 2017
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Document Summary
One monomer provides a hydroxyl group while the other provides a hydrogen: glycerol- is an alcohol; each of its three carbons bears a hydroxyl group. Amino group: acts as a base- can pick up an h+ from the surrounding solution, amine (glycine) Phosphate group: contributes negative charge, allows a molecule the ability to react with water, releasing energy, glycerol phosphate. Organic phosphate covalent bond: disaccharides are composed of two monosaccharides joined by a covalent bond, most carbohydrate membranes are covalently bonded to proteins, which are thereby glycoproteins, peptide bonds are covalent. When two amino acids are positioned so that the carboxyl group of one is adjacent to the amino group of the other, they can become joined by a dehydration reaction. Hydrophobic interaction: contributes to tertiary structure. As a polypeptide folds into its functional shape, amino acids with hydrophobic (nonpolar) side chains usually end up in clusters at the core of the protein, out of contact with water.
