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exam2key - 5440““ DVDM‘W‘ WKL H‘s 5:1"*3 ‘...

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Unformatted text preview: 5440““ DVDM‘W‘ WKL H‘s 5:1" (*3? ‘ W1» \ I A 0 cm, “1% A0 1‘ \ \(°+¥or wk , c, , \J. \ 0 °9 b I: (““63 - \p ‘ €- 0 UK C’ / \\ \\ \35 O \ ' \ (4 -91 9% NAME: 2. For Michaelis-Menten kinetics: aubfiw’f‘ - wwww ; r is Varied (2 points) 6 . H 7 ”A“ 7 ,s z @174} LAWS kept constant and What are the two assumptions Michaelis and Menten made? (2 points) 9 MSWA o? a? aim/“Jaw ’ Ew‘g .71 mama, W1 33 we», . so ‘.K»7_7 Cm 1K rimmL ‘ ®€4E~b Sim-la QSDWaO~OAL¢L rm W5 TESS Write the Michaelis-Menten equation: (2 points) On the same plot, draw Michaelis-Menten curves for both an un-inhibited reaction and a reaction inhibited by a non-competitive inhibitor. Label which curve is for un-inhibited and which is for inhibited. Label each axis. Label also where Vmax and Km would be for both uninhibited and inhibited (5 points) Mu6tl‘ W \ * PL 1 '\ C KW “0a *wfi? . me l K” 9:) or B fit NAME: 3. Draw the structure of sucrose with the sugars in the cyclic form (not the linear form). Label the glycosidic linkage and define What type of bond it is. (2 points) 03,00” 4. Write the complete chemical reaction for the conversion of linear D- glucose into the hemiacetal B-D-glucose. (2 points), 5. Define catabolism and anabolism. (2 points) CatweaéM-gmcluwh pt 1”?“ MtcOVS h ' AUW w I \OORS Q: / P «'19 MEdUSM’ SW“ Mow/RS tax/‘5 9 l) j V? \w'élrr ’ W- @P‘ 6. Draw the chemical structure of ATP. (2 points) ,nh. H ‘ *PLWI‘l/ ‘> :}_.___\ ‘ 110+ wasp-L 5% o 0 H (a \l H)? Mgé‘ ’o— e, w vo—y - o—omo 5+ watt - \ \ 0, 0" ‘ 0H 09 7. Where does glycolysis occur? (1 point) WW 8. Write in words (no chemical structures) the OVERALL reaction catalyzed by glycolysis. (6 points) Do mole thJM Murmatoks of an’mp“ w, _ —A m +QATP+ZNA§Pl élVLofi t ZNAS +ZABP T ZP‘ mev . a NAME: 9. Write the complete glycolysis pathway. Draw the chemical structures of all substrates and products, except cofactors like ATP and NAD+. Name all enzymes and all cofactors required for each step. At a certain point the pathway is duplicated. Do NOT draw both branches of the pathway; simply state when the duplication starts. (20 points) » Pr \ \ ’ 003—” :3.» H (ff)?! Dung}? -c,’ 1’ ' r——/ two' 9031 W» law ’T "0% as P “Q a‘ pww‘ .Sw-Wé’t (06” NAME: 10. What enzyme catalyzes the committed step in glycolysis? points) cheap he Fru (m K int-S4 , NT? mlmbf'VS «13M . pm- P is ,dwgmic QMd-vr. 11. Where does gluconeogenesis 0c ‘7 oint) Li V-Cf . Answer the following for DE step 1 uconeogenesis that is DIFFERENT than in glycolysis:- (16 points) 1) Name the glycolysis enzyme NOT used in gluconeogenesis. 2) Name the enzyme used in gluconeogenesis and write the reaction with the chemical structures of all substrates and products drawn. Cofactor chemical structures need not be drawn, but name all enzymes and cofactors required. (9 hexahnuy. i" s'aw‘fi‘s '3 S‘WN'WPMDPMM ‘” “WWI/"‘5‘? e ; lated? (3 2/. Op ’40“Lm H‘b’C-H’Z. 3 . \vwét’l-D’PLVW‘M oh \4? o {*0 (3H 0 ' D O“ OH \“"L f‘ oPr b“ (9424’ glut/03‘ - 81$. mm m 3W¢°WW mam w w‘m strum few" ® emphu 4f? U , Z 05" ’o—GH'L GH‘LO“ 2' —a*2. 0H ~o-POzf P-O 2 WM 03 0 gtgcwop“ “MW-v > , M DU f oer 0‘“ I . or» m? P rpkM 394-5 gljipl-Afii‘s Can/h)” 3995 Slopouagm—csis 60-33% NAME: 12. Draw the reaction catalyzed by UDP-glucose pyrophosphorylase with the chemical structures of all substrates and products included. (5 points)o 544 r DTP —-> VBP away. + PP. H /u\\u(13 N U0? is: o f? Pde “ ",0, -o H anon "tr-0”? r / o o 9 f? O iii/A 0’ 0 s? , 2r 0-5,»o’y-o'CHZO L) HO 0* 010—0 050" o' (W O - our 0“ W“ 0H OH M Call” %SW“-F +1 CW0? mew? +l H10 *9?" '3 1w} 13. Describe in detail the reaction catalyzed by phosphoglucomutase, which is involved in glycogenolysis. Draw both the substrates and products. Also indicate the special nature of an amino acid side chain of the enzyme, and any reaction intermediates. (6 points) Sex Q)! 3 Ser' 1 o x .0. l I', — ‘ ~o-'\-\ ‘ ”O’P 0H2” —P 0 ah, 0h 5' r o’ z 2/ i? 0 0+7, 0 3F—OW fro ”CH2. 0 ’ , - l 0 a M v < - _._> no , "905 ’ ‘r 0/900? d3 \cx ('" OH HO (1+6 0 ol” NAME: 14. Draw the five reactions catatlyzed by the three enzymes of the pyruvate dehydrogenase complex. For each reaction, draw the chemical structures of all substrates and products. Cofactor chemical structures need not be drawn (6. g, “TPP” can be used), but name all enzymes and cofactors required for each reaction. (M points) Bin tro\ my dehaérmgwfiak— gr )5 {‘1ka ‘VH ‘ r; NP: ...
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