win02midoneexamandkey

win02midoneexamandkey - BIS103-002 - FIRST MIDTERM January...

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BIS103-002 -- FIRST MIDTERM January 31, 2002 Name_____________________________________________ 1 Student ID # _______________________________________ Check the appropriate boxes below Undergraduate Graduate Audit Completing Incomplete Note: There are 7 questions and a total of 9 numbered pages counting the cover sheet. A blank sheet is included in the back for scratch paper and to cover your exam. Do not use this paper for your answers. If you need more room use the back of the numbered pages. Partial credit will be given. WRITE YOUR NAME ON THE TOP OF EACH PAGE. Question Value Score 1 15 2 26 3 15 4 12 5 12 6 10 7 10 TOTAL 100 T= 298º K R= 8.315 J x mol -1 x K -1 Faraday's constant (F) is 96.5kJ x volt -1 x mol -1 G o ' for the reaction ADP + P i ATP + H 2 O = + 30.5 kJ x mole -1 G o ' = - n F E o ' G = G o ' + RT ln [products/reactants] 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 _____________________
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BIS103-002 -- FIRST MIDTERM January 31, 2002 Name_____________________________________________ 2 1. (15 pts). For the following enzyme reactions, draw the structures of the substrate(s) and product(s). Include the names (no structures) of any required co-factors. Write balanced reactions. Do not draw the structures of nucleotides such as ATP, GTP. You may use Pi for inorganic phosphate. a. Phosphofructokinase-1 b. Alcohol dehydrogenase c. Glycogen phosphorylase
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BIS103-002 -- FIRST MIDTERM January 31, 2002 Name_____________________________________________ 3 2. (26 pts) (a). (10 pts). Two students are discussing the catabolism of glycerol. Below is shown the pathway that they remembered for the metabolism of glycerol to a glycolytic intermediate. There are some metabolites and co-factors missing. Please supply the names of the missing co-factors or the structures of the missing metabolites in the boxes provided. Do not draw the structures of nucleotides if they are required. CH 2 OH CH 2 OH OH CH 2 OH CH 2 OPO 3 2- O
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BIS103-002 -- FIRST MIDTERM January 31, 2002 Name_____________________________________________ 4 (b). (6 pts). One of the students claimed that yeast can grow on glycerol as their sole source of carbon in the absence of oxygen for a long time . Do you agree or disagree with this statement? Why or why not? (c) (10 pts) Determine the number of net ATPs generated when the equivalent carbons of glycerol are oxidized to CO 2 . Write your answer in the box provided below. Do not draw pathways, but name the pathways that are the source of each ATP. For full credit, you must show your work.
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BIS103-002 -- FIRST MIDTERM January 31, 2002 Name_____________________________________________ 5 3. ( 15 pts). Some organisms have the capability of metabolizing other carbohydrates in addition to the ones discussed explicitly in class. For example, tagatose (whose structure is shown below)
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This note was uploaded on 06/17/2009 for the course BIS 103 taught by Professor Abel during the Spring '08 term at UC Davis.

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win02midoneexamandkey - BIS103-002 - FIRST MIDTERM January...

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