Org/Biochem Final Lec Form, Spring 2012 Page 1 of 6
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1 Page 1 of 6 Missing Complete Protein and Question #45 Key Terms: Fill in the blank in the following 25 statements with one of the key terms in the table. Each key term may only be used once. Print legibly. Each question is worth 1 point. Organic chemistry Saturated Functional group Aliphatic Aromatic compound Carbonyl group Isomers Free radical Conformation Alkene Fehling and Cracking Markovnikov s rule Macromolecule Copolymer Benedict s tests Tollen s test Thermoplastic Condensation Secondary alcohol Saytzeff s rule polymer polymer D-amino acids Apoenzyme Primary Transition state D-amino acids L-amino acids Coenzyme Secondary Macronutrients L-amino acids Metabolism Tertiary Catabolism Essential amino acids Metabolism Nucleotide Micronutrients Holoenzyme Enzyme-substrate Nucleotide Triglyceride Stereoisomers Epimers Alkaloids Chiral carbon atom Anomers Hydrogenolysis Urea Glycosides Reducing sugars Active transport Quaternary Hydrophobic Enantiomer Waxes ammonium salt Heterocyclic compounds Steroid Diastereomers Saponification Fluid mosaic model 1. states that when a hydrogen-containing unsymmetric molecule (HX) adds to a double bond, the hydrogen will add to the carbon with the greatest number of hydrogens. 2. is a carbon-oxygen double bond. Both aldehydes and ketones contain this group. 3. In the, blue Cu 2+ is reduced to form Cu 2 O, a reddish brown precipitate. Aldehydes are oxidized; simple ketones do not react. 4. states that when there is a choice of positions for the formation of a carbon-carbon double bond, the more highly substituted alkene is preferred. 5. Molecules with different structural formulas that have the same molecular formula are of each other. 6. A is an atom or group of atoms that has an unpaired electron. 7. represent different classes of compounds. Page 1
2 Page 2 of 6 8. is the chemistry of carbon compounds. 9. another term for alkaline hydrolysis of carboxylic acid esters 10. basic compounds that are derived from plants and show physiological activity 11. have the same structural formula but differ in their spatial arrangement 12. stereoisomers that are not mirror images 13. will reduce Cu (II) to Cu (I) ions or silver ions to silver metal 14. any two monosaccharides that differ in configuration around a single carbon atom 15. across a cell membrane is aided by a protein and requires energy 16. Cholesterol is the most common. It serves as an important membrane component and a precursor for several hormones amino acids are considered, because they are needed for good health and cannot be synthesized in the human body. 18. Only are found in proteins. 19. A consists of both the protein and nonprotein parts. 20. The is a high-energy state that a reactant must pass through to be converted into a product. 21. are molecules that contain carbon and one or more other elements in their ring structure. Page 2
3 Page 3 of A consists of a nitrogen base, a sugar, and at least one phosphate group. 23. A contains all the essential amino acids. 24. are classed as micronutrients. 25. is the sum of all chemical reactions that occur within a living organism. Page 3
4 Page 4 of 6 Multiple Choice: Each of the following 25 multiple choice questions is worth 3 points. Please circle the best answer. There will only be one correct answer for each question. 26. The carbon-carbon bond angle in an open chain alkane is usually: a) 90º b) 109.5º c) 120º d) 180º 27. The equation shown below is classified as a(n) reaction. CH O 2 CO H 2 O a) Substitution b) Combustion c) Elimination d) Cracking 28. Identify the correct IUPAC name for: Cl Br a) 1-bromo-3-chlorocyclopentane b) 1-bromo-4-chlorocyclopentane c) 1-chloro-3-bromocyclopentane d) 1-chloro-4-bromocyclopentane 29. Which of the following is used to identify the correct position of a substituent in a branched alkane? a) The parent carbon chain is counted to give the substituent the highest possible number. b) The parent carbon chain is counted to give the substituent the lowest possible number. c) The parent carbon chain can be counted from either direction. d) There is no universal convention how to number the substituent. 30. Which amine class is the following amine in? a) primary b) secondary c) tertiary d) quaternary ammonium salt 31. Butane and isobutane are: a) stereoisomers b) structural isomers c) enantiomers d) cis/trans isomers 32. Which of the following will give a negative result in the Benedict's test? a) beta-d-glucopyranose b) sucrose c) maltose d) alpha-d-glucopyranose Page 4
5 Page 5 of What form of membrane transport requires no energy expenditure by the cell and uses proteins to bind a target molecule on the side of the membrane with a higher concentration of the target molecule then release the molecule on the other side of the membrane (where the concentration is low)? a) active transport. b) reverse transport. c) facilitated diffusion. d) simple diffusion. 34. The substrate molecule must change its shape in order to fit into the active site This statement describes: a) the induced fit model of enzyme activity. b) the lock and key model of enzyme activity. c) the productive binding hypothesis. d) the strain hypothesis. 35. Complete hydrolysis of RNA could yield uracil, phosphoric acid, ribose, and thymine. 36. Which of the following is a fat soluble vitamin? a) Vitamin D b) Vitamin B 12 c) Vitamin C d) Vitamin B Sunlight is the ultimate energy source for metabolism. 38. The end product(s) of anaerobic catabolism of glucose in muscle tissue is(are): a) carbon dioxide and water b) lactate c) sucrose d) ethanol 39. The most efficient pathway(s) for obtaining energy from reduced carbons is(are): a) glycolysis b) the citric acid cycle c) the citric acid cycle plus electron transport and oxidative phosphorylation d) glycolysis plus substrate-level phosphorylation 40. Which of the following is an anabolic pathway? a) glycolysis b) photosynthesis c) fatty acid oxidation d) Kreb's cycle 41. Which of the following is not true about type 2 diabetes mellitus? a) It is also known as adult-onset diabetes. b) Muscle cells cannot respond to insulin. c) Blood glucose is often high. d) Affected individuals cannot produce insulin. 42. The final product of carbohydrate catabolism is pyruvic acid. 43. The formation of glucose from noncarbohydrate sources is called gluconeogenesis. Page 5
6 Page 6 of The following is an end product of beta-oxidation: a) acetyl-coa b) pyruvic acid c) FAD d) none of these 46. An amino acid of central importance in amino acid metabolism is: a) acetoacetic acid b) D-glutamic acid c) L-glycine d) L-glutamic acid 47. Pyruvic acid results from transamination of: a) L-alanine b) L-serine c) glycine d) L-aspartic acid 48. People with PKU should not consume: a) aspartame b) MSG c) fatty acids d) vitamins 49. Which of the following best describes transamination? a) The process by which an amino group from an α-keto amino acid is transferred to an α-amino acid. b) The process by which an amino group from an α-amino acid is transferred to an α-keto amino acid. c) The process by which an amino group from an α-amino acid is transferred to an β- amino acid d) The process by which an α-amino acid to a β- amino acid. 50. The cell must use a different metabolic pathway to metabolize almost every amino acid. Page 6
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