cells test 2 - Bio 1011 Cells Exam 2 October 13, 2006 Ver....

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Bio 1011 – Cells Exam 2 – October 13, 2006 Ver. C Name:_______________________________________ Answer the multiple choice questions on the scantron sheet. Select the one choice that best answers the question. Answer the short answer questions in the space provided on the test form . Good luck. 1. Based on the graph to the right, which enzyme has a higher affinity for substrate? a. enzyme P b. enzyme Q c. they both have similar substrate affinities d. there’s not enough information in the graph to tell 2. What is the name of the enzyme for this reaction? Succinate + FAD Fumarate + FADH 2 a. fumerate dehydrogenase b. succinate dehydrogenase c. fumerate kinase d. succinate kinase 3. An amphibolic pathway is a metabolic pathway a. that results in energy released b. that is involved in both catabolism and anabolism c. that occurs in both water and in air d. that is involved in anabolism only 4. Which of the metabolic pathways below involve one or more substrate level phosphorylations? a. glycolysis only b. fatty acid oxidation only c. fatty acid oxidation and glycolysis d. TCA cycle only e. TCA cycle and glycolysis 5. G°' for the reaction A  B is +5400 cal/mol. Which of the following is TRUE? a. Under standard conditions, this reaction is endergonic b. Under standard conditions, this reaction is exergonic c. This reaction has a K'eq > 1 d. both a and c are true 6. Glyceraldehyde 3-phosphate dehydrogenase is able to couple a(n) ____________ aldehyde oxidation reaction to a(n) _____________ phosphorylation reaction. (Fill in the respective blanks) a. exergonic… endergonic b. endergonic… exergonic c. reducing… oxidizing d. oxidizing… reducing Enzyme P Enzyme Q [S] v
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7. At the end of the tricarboxylic acid cycle, how many TOTAL numbers of NADH has been generated by one glucose molecule? a. 8 b. 10 c. 12 d. 14 e. 16 8. In prokaryotes, enzymes involved in fatty acid oxidation are found a. in the cytosol b. in the mitochondrial matrix c. outside the cell d. in the plasma membrane 9. According to the Michaelis-Menton kinetics, when substrate concentration is very low… (complete the sentence) a. velocity is independent of substrate concentration
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This note was uploaded on 04/21/2008 for the course BIO 101 taught by Professor Mmcann during the Spring '08 term at Saint Joseph's University.

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cells test 2 - Bio 1011 Cells Exam 2 October 13, 2006 Ver....

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