BIS 105-3

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University of California, Davis *

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105

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Biology

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Oct 30, 2023

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Page 1 of 8 Name KEY Last, First Your Student ID number: Biological Sciences 105 Second Midterm, May 21, 2008 Instructions: Write your answers in the space provided below each question. If you need more space, use the back of the page. For calculation problems, a clear line of calculations must be shown to obtain full credit. Question Value Score Question Value Score 1 4 7 10 2 4 8 12 3 8 9 6 4 20 10 8 5 4 11 10 6 10 12 4 Total 100 Student Authorization I authorize the University to distribute publicly this graded exam (e.g., handed out in class or left in a bin for me to pick up). Signature , Date https://www.coursehero.com/file/8031844/BIS105SpringQtr2008ThegMT2KEY/ This study resource was shared via CourseHero.com https://www.coursehero.com/file/13087693/BIS105SpringQtr2008ThegMT2KEY/ This study resource was shared via CourseHero.com
Page 2 of 8 1. (4 pts.) Below are listed some of the equations we may have or have not used this quarter. Please match the equation with the statements by placing a letter on the line corresponding to the appropriate equation. A. ¸ ¹ · ¨ © § ± RT E h T k a exp k B. ¸ ¸ ¹ · ¨ ¨ © § ² ² I M K I K S S V v ] [ 1 ] [ ] [ max 0 C. M K S S V v ² ] [ ] [ max 0 D. ³ ´ M I K S S K I V v ² x ¸ ¸ ¹ · ¨ ¨ © § ² ] [ ] [ ] [ 1 max 0 E. E = m c 2 F. eq K RT G ln ' 0 ± ' G. ³ ´ kt e S t P ± ± 1 ) ( 0 H. ¸ ¸ ¹ · ¨ ¨ © § ² ² x ¸ ¸ ¹ · ¨ ¨ © § ² I M I K I K S S K I V v ] [ 1 ] [ ] [ ] [ 1 max 0 I. ] tan [ ] [ ln ' 0 ts reac products RT G G ² ' ' A. This equation describes the accumulation of a product as a function of time in a first order reaction. ___G_____ B. This equation describes competitive inhibition. __B______ C. This is the Michaelis-Menten equation. ___C_______ D. This equation describes uncompetitive inhibition. __H______ E. This equation describes the relationship between a first order rate constant and energy of activation. ___A_____ F. This equation shows the relationship between ' G 0 ’ and the equilibrium constant of the reaction. ___F_____ G. This equation describes noncompetitive inhibition. ___D_____ H. This equation is not often needed in biochemistry. ___E______ I. This equation shows the change in Gibbs Free Energy derived from a reaction starting with non-standard conditions. ___I______ And if you need them, use T = 298 K and R = 8.314 J/mol K https://www.coursehero.com/file/8031844/BIS105SpringQtr2008ThegMT2KEY/ This study resource was shared via CourseHero.com https://www.coursehero.com/file/13087693/BIS105SpringQtr2008ThegMT2KEY/ This study resource was shared via CourseHero.com
Page 3 of 8 2. (4 pts) For the following pairs which is more oxidized ? Circle the correct answer. (a) glucose CO 2 (b) ethanol acetate (c) pyruvate lactate (d) oxaloacetate malate 3. (8 pts.) For the following enzyme catalyzed reaction: l unaltered substrate product released which one of the following is the most likely shape for the enzyme’s active site (circle the letter)? Justify your answer (briefly, one sentence). a b c d e The Bart Simpson enzyme The active site of the enzyme should have the shape of the transition state complex, in this case, partly between substrate and product. https://www.coursehero.com/file/8031844/BIS105SpringQtr2008ThegMT2KEY/ This study resource was shared via CourseHero.com https://www.coursehero.com/file/13087693/BIS105SpringQtr2008ThegMT2KEY/ This study resource was shared via CourseHero.com
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