exam1_typeB_key 2008 - CH369 Exam 1 (version 2) . Jan 29,...

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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? a. True b. False 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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b. False 10. The higher the H + concentration, the lower the pH. a. True b. False 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? a. Amino acids, nucleotides, sugars b. Proteins, lipids and cholesterol c. Proteins, nucleic acids and polysaccharides d. Nucleic acids, proteins and lipids e. None of the above 13. Under which of the following conditions that a reaction NEVER occurs spontaneously at a given temperature? a. a huge increase in enthalpy accompanied by a small increase in entropy b. a small increase in enthalpy and a large increase in entropy c. a small increase in enthalpy and a small increase in entropy d. a large increase in enthalpy and a large increase in entropy 14. What are the roles of the zinc ion in zinc finger proteins in terms of the structural stabilization? a. Zinc ion forms tetrahedral coordination
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This note was uploaded on 05/23/2011 for the course BIO 1402 taught by Professor Kitto during the Spring '11 term at University of Texas at Austin.

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exam1_typeB_key 2008 - CH369 Exam 1 (version 2) . Jan 29,...

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