Midterm1W07

Midterm1W07 - 1IS103-002 - FIRST MIDTERM January 20, 2007...

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1 IS103-002 -- FIRST MIDTERM January 20, 2007 Name_________________________________ 1 Student ID # _______________________________________ Check the appropriate boxes below Undergraduate Graduate Audit Completing Incomplete Note: There are 6 questions and a total of 16 numbered pages including 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 14 2 20 3 16 4 20 5 16 6 14 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 Δ G o ' for the reaction ADP + P i ATP + H 2 O = + 30.5 kJ x mole -1 Δ G o ' = - n F Δ E o ' Δ G = Δ 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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2 IS103-002 -- FIRST MIDTERM January 20, 2007 Name_________________________________ 2 1. (14 pts). The compound shown below can be found in some vegetables. Humans are able to utilize this compound for energy production. Answer the following questions about this compound and its catabolism. CHO OH H OH H H HO OH H CH 2 OH a). (1 pts) Define a carbohydrate and answer the question- Is this compound a carbohydrate? Circle either YES or NO b). (4 pts). Write out the most likely first enzyme catalyzed reaction in the catabolism of this compound. Name the type of enzyme that would catalyze this reaction. Use structures for the substrate and product, but use names, not structures of co-factors and/or nucleotides if they are part of the reaction.
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3 IS103-002 -- FIRST MIDTERM January 20, 2007 Name_________________________________ 3 c). (9 pts). Continue with the catabolism of this compound. Propose a catabolic pathway for this compound so that its carbons can be oxidized to CO 2 . Use types of reactions we have seen in class. If the reactions you use are a known pathway discussed in class, name the pathway, don’t write out all the reactions of that pathway. Stop when the carbons of this compound (or the equivalent number) are oxidized to CO 2 .
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4 IS103-002 -- FIRST MIDTERM January 20, 2007 Name_________________________________ 4 2. (20 pts). (a). (10 pts).
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Midterm1W07 - 1IS103-002 - FIRST MIDTERM January 20, 2007...

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