BIS103_2004MT1_ - BIS103-001 (Spring 2004) Midterm #1...

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BIS103-001 (Spring 2004) Midterm #1 (April 22) Name_____________________________________ 1 Instructor: Abel Student ID #_______________________________ Please, check appropriate box. This exam consists of 6 questions. A maximum of 100 points can be earned. Partial credit will be given. There are a total of 12 pages, including the cover page and 1.5 blank sheets at the end for notes. However, do not use the blank sheets for your final answers. If you need more space, use the back of pages 2-7. Write your name on top of each page! Petitions for regarding will be considered only if you have used permanent ink , unless an addition error has occurred. *IT IS YOUR RESPONSIBILITY TO WRITE LEGIBLE!* No extra effort will be made to decipher your handwriting. T = 25 o C (298 K) T = 37 o C (310 K) R = 8.315 J mol -1 K -1 F = 96.5 kJ mol -1 V -1 n = moles of electrons G = G o ’ + RTln[Prod.]/[React.] G o’ = – nF E o’ E o’ = E o’ Oxidant – E o’ Reductant I,_______________________________________, authorize the University to distribute publicly this graded exam (e.g., handed out in class or left in a bin for pick up). I am aware of the fact that violations of the Academic Code of Conduct 1 may be reported to UC Davis Student Judicial Affairs. 1 Examples of academic misconduct include: receiving or providing unauthorized assistance on examinations, using unauthorized materials during an examination, altering an exam and submitting it for re-grading, or using false excuses to obtain extensions of time ( ). Signature________________________________________ Date____________________________ Undergraduate Student Graduate Student Auditing Completing Incomplete Question Value Score 1 5 2 5 3 18 4 26 5 20 6 26 TOTAL 100
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BIS103-001 (Spring 2004) Midterm #1 (April 22) Name_____________________________________ 2 1. (5 pts) Given below are pairs of reactants and products (the stoichiometry is not necessarily balanced). Use your understanding of chemical reactions and thermodynamics to predict if the reactions as written ( Î ) are thermodynamically favorable (- G o ’) or unfavorable (+ G o ’) under standard conditions. Circle the correct answer (1 pt for each reaction). Reactants Products Standard Free Energy Change ( G o ’) H 2, O 2 H 2 O positive negative Acetate, Coenzyme A Acetyl-CoA, H 2 O positive negative Ethanol, O 2 CO 2 , H 2 O positive negative Glucose Lactate positive negative ADP, Pi ATP positive negative 2. (5 pts) Calculate the standard free energy change ( G o ’) for the synthesis of sucrose from glucose-6-P (Glc-6-P) according to the biochemical reaction given below. Write your
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This note was uploaded on 06/07/2009 for the course BIS 103 taught by Professor Abel during the Spring '08 term at UC Davis.

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BIS103_2004MT1_ - BIS103-001 (Spring 2004) Midterm #1...

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