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exam1_typeB_key - CH369 Exam 1(version 2 Name UTEID...

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CH369 Exam 1 (version 2) . Jan 29, 2008 Name: __________________________ UTEID: ____________________________ Instruction: 1. Please bubble in your name, UTEID, and the version number of your exam on the scantron sheet. 2. Answers for question 1-54must be marked on the scantron sheet. Only the scantron sheet will be graded. 3. Question 56 -57 should be answered on this exam. 4. All requests for addition error or regarding must be within 1 week of receiving your exam. No exceptions. 5. Addition errors and regarding question 56 - 57 should be taken to TA. Any exam turned in for regrade will be completely regarded. Session Points I. 10 II 70 III 8 IV 12 Total 100
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I. True/False (10 pts, 1 pt ach) 1. When sequencing DNA, the template DNA is tagged with different fluorescent dye. a. True b. False 2. A reaction or process will not spontaneously occur unless the free energy is ΔG<0. a. True b. False 3. DNA synthesis terminates when a dideoxynucleotide is incorporated into the nascent strand. a. True b. False 4. The two strands of DNA in the B-form DNA are parallel. a. True b. False 5. Myoglobin has lower affinity to O 2 than hemoglobin. a. True b. False 6. Electrophoresis can sort DNA based on their lengths. a. True b. False (Q. 7-8) Consider the conversion of glucose to glucose-6-phosphate: Reaction I Glucose + phosphate ↔ glucose-6-phosphate + H 2 O G º’ = 13.8 kJ/mol Reaction II ATP + H 2 O ADP + phosphate G º’ = - 30.5 kJ/mol 7. Is Reaction I is favorable? a. True b. False 8. Suppose the synthesis of glucose-6-phosphate is coupled with the hydrolysis of ATP, the overall reaction for the coupled process is favorable? 9. In a lipid bilayer, the hydrophobic portions of the lipids are found in the center of the bilayer and the hydrophilic 'heads' are oriented at the water-exposed surfaces of the bilayer.
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10. The higher the H + concentration, the lower the pH. II. Multiple choice (70 pts, 1.75 each) 11. In RNA, which of the following can be found? a. Deoxyribose sugar b. Nitrogen-containing ring c. Phosphodiester bond d. a and b e. b and c f. a and c g. a, b, and c 12. What are the major types of biological polymers? 13. Under which of the following conditions that a reaction NEVER occurs spontaneously at a given temperature?
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