AQA Jun 2015 Paper 4 Q7

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a the structures and common names of two amino acids are shown do not write outside the box cooh proline ch h n c cooh alanine a i draw the structure of the zwitterion of proline mark a ii draw the structure of the tripeptide formed when a proline molecule bonds to two alanine molecules one on each side marks wmp jun chem b sections of two polymers l and m are shown do not write outside the box ch ch ch ch ch ch ch ch ch ch ch ch h o ch ch h o b i give the iupac name of a monomer that forms polymer l mark b ii give the iupac name of the monomer that forms polymer m mark b iii draw the section of a polymer made from a dicarboxylic acid and a diamine that is isomeric with the section of polymer m shown b iv explain why polymer l is non biodegradable mark mark turn over wmp jun chem

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