Chapter 25 Synthetic And Natural Organic Polymers-Books Pdf

Chapter 25 Synthetic and Natural Organic Polymers
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August 28 2009 PROBLEM SET FROM R CHANG TEST BANK, 4 The segment represents the polymer named. A polybutylene, B polyvinyl chloride, C polypropylene. D polystyrene, E polyethylene, 5 The segment represents the polymer named. A polybutylene, B polyvinyl chloride, C polypropylene. D polystyrene, E polyethylene, 6 A protein is, A a polysaccharide.
B a saturated ester of glycerol, C one of the units making up a nucleic acid. D a polymer of amino acids, E an aromatic hydrocarbon. 7 Polyacrylonitrile characterized by the repeating unit is made from which of these. A CH3CH2CN, B HOCH2CH2CH3, C CH3CH CHCN, D CH2 CHCN. E CH2 CNCH3, 8 A polymer made in a polymerization reaction that produces small molecules such as water as well as the. polymer is classified as a an polymer, A addition, C condensation.
D elimination, E copolymer, www kau edu sa aasiri2 Page 2. August 28 2009 PROBLEM SET FROM R CHANG TEST BANK, 9 The monomer used to prepare polyvinyl chloride PVC is. B CH3CH2Cl, C CH2 CCl2, D CH2 CHCl, 10 The polymer formed from the monomer is. 11 Which one of these materials is a copolymer, A Styrene butadiene. B polyvinyl chloride, C polypropylene, D poly cis isoprene.
E polyethylene, 12 What type of polymer is represented by the following repeating segment. A polyamide, B polyester, C polyether, D polyolefin. E polyethylene, 13 An amino acid is a compound that contains at least. A one amino group and one amide group, B two amino groups and one carboxylic acid group. C one hydroxyl group and one methyl group, D one carboxylic acid group and one amino group.
E one methyl group and one amide group, www kau edu sa aasiri2 Page 3. August 28 2009 PROBLEM SET FROM R CHANG TEST BANK, 14 A peptide bond also called an amide bond joins two amino acids together What atoms are linked by this. 15 Which one of these elements is not found in proteins. 16 An essential amino acid is one that, A must be included in the diet. B contains no sulfur, C occurs in all types of proteins. D is necessary for vitamin production, E the body can synthesize.
17 Which one of these choices is the general structural formula of an amino acid. www kau edu sa aasiri2 Page 4, August 28 2009 PROBLEM SET FROM R CHANG TEST BANK. 18 The functional group, found in proteins is called a an. B carboxylic acid, D amino acid, E dipeptide, 19 Which of the structures below corresponds to the dipeptide alanylserine Note the following structures. www kau edu sa aasiri2 Page 5, August 28 2009 PROBLEM SET FROM R CHANG TEST BANK. 20 Which of the structures below corresponds to the dipeptide serylalanine Note the following structures. 21 Which of these choices is not an intermolecular force that affects the structure of a protein. A hydrogen bond, B dispersion force, C adhesive force.
D ionic force, E dipole dipole force, 22 The secondary structure of a protein is the. A configuration of those parts of the chain stabilized by a regular pattern of covalent bonds between C. and O groups of the backbone of the chain, B configuration of those parts of the chain stabilized by a regular pattern of hydrogen bonds between. CO and NH groups of the backbone of the chain, C specific order of amino acids in the chain. D overall three dimensional structure of the molecule. E overall arrangement of several polypeptide chains into one functional unit. www kau edu sa aasiri2 Page 6, August 28 2009 PROBLEM SET FROM R CHANG TEST BANK. 23 A protein that has been reversibly denatured has. A temporarily lost part or all of its secondary or tertiary structure. B temporarily lost part or all of its primary structure. C been genetically modified due to errors in the nucleotides in the parent DNA. D temporarily lost its amino acid residues, E temporarily lost the hydrogen bonding between nitrogenous bases.
24 Which of these molecules is a product of the hydrolysis of DNA. A acetic acid, 25 Phosphorus is an essential mineral element It is an important atom in which one of the following. A amino acids, B proteins, C polyethylene, 26 The backbone of a strand of nucleic acid consists of. A phosphate units only, B phosphate and sugar units. C polyester, D phosphate sugar and nitrogen base units. E sugar units only, 27 Which choice contains all three molecular units found in nucleotides.
A phosphate sugar amino acid, B amino acid nitrogen containing base sugar. C carboxylic acid sugar protein, D phosphate nitrogen containing base sugar. E sugar amino acid protein, 28 Which choice lists both the sugar and the nitrogen base that are a part of RNA but are not a part of DNA. A deoxyribose and thymine, B ribose and deoxyribose. C ribose and uracil, D uracil and thymine, E ribose and thymine.
www kau edu sa aasiri2 Page 7, August 28 2009 PROBLEM SET FROM R CHANG TEST BANK. 29 Which one of these molecules is part of the make up of both DNA and RNA. A deoxyribose, C phosphate, 30 Which nitrogen base is found in RNA but not in DNA. B cytosine, 31 Cysteine and methionine are unique among the twenty amino acids essential to living organisms in that. A are chiral, B contain an aromatic ring, C do not form dipolar ions. D contain sulfur, E cannot join with other amino acids to form peptides.
32 The pleated sheet configuration of proteins, A is relatively inelastic. B never occurs in nature, C is structurally weak, D contains no peptide bonds. E does not involve hydrogen bonds to other proteins. 33 Oxalic acid is the simplest acid that has two carboxylic acid groups Write an equation. and show the structure of a polyester that might be made from oxalic acid and ethylene glycol. www kau edu sa aasiri2 Page 8, August 28 2009 PROBLEM SET FROM R CHANG TEST BANK. 34 Draw the structural formula of the monomer that would be used to prepare the following polymer Teflon. 35 The monomer used to prepare polyvinyl chloride PVC is CHCl CHCl. True False, 36 The primary structure of a protein refers to the unique amino acid sequence of the polypeptide chain. True False, 37 The following amino acids all have nonpolar side chains.
True False, 38 Both DNA and RNA have double helical structures. True False, 39 Hemoglobin with its attached heme group is an example of a conjugated protein. True False, www kau edu sa aasiri2 Page 9, August 28 2009 PROBLEM SET FROM R CHANG TEST BANK. Chapter 25 Synthetic and Natural Organic Polymers Key. www kau edu sa aasiri2 Page 1, August 28 2009 PROBLEM SET FROM R CHANG TEST BANK. Chapter 25 Synthetic and Natural Organic Polymers The segment represents the polymer named A polybutylene B polyvinyl chloride C polypropylene

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