Key Mid 2 Fall 2009

Key Mid 2 Fall 2009 - lof4 BIS 103 Name K Last 3 FirSt...

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Unformatted text preview: lof4 BIS 103 Name K Last 3 FirSt Fall, 2009 K. Hilt Second Midterm Score (100): 1. (30 pts.) The following diagram is from a slide of the Kreb’s cycle that we showed in class. This diagram is missing eight different structures, each indicated by a number (i.e. #1 ,_ etc.). Draw in the missing structure, in the form that would predominate at pH 7, next to each number. Do 291 worry about missing defectors or coenzymes in the dlagram- 0 +7. QM wanna) charge, '1 H3 0.. 2 .— 5 " CO A 4% l 3: \‘\ C w” "20 - ‘r‘ z 0 NS" Cxuf we + 4 l C l‘ e ' __ 00' fifiz #8 synthesis P 0" C C’ on“ Oxaloaccute W _ V _ -\>\ , mutate can- dehydro- ‘ _ o .4 gmse Pr ’ f =fl' 7 c a; ‘cw - H O ’ 2 y“ 6/ C00 ‘ ,l n N 4% fix A H -—c00‘ 7: 0 ‘9 Isodtrate z itrrto “H succinate . s“ ‘3 V - \M‘yd M“ dehydrogen COO ' a—ketoglutmte V c an” . dehydrong CO; 6"” complex 1‘5" 3 cab— ‘\" H \ z ‘L H 2 4— 4 (All I H 1 Ca 2 can“ ‘ — #c—cco a 20f4 BIS 103 Name M953 2. (5 pts.) Identify three major functions that the Kreb’s cycle performs. Be very specific in your answers, but limit your answers to the lines provided: “a, H ,3.» a M answer +7. ; scama gonad: answer +2 ' 5L wad— ”, e, l C ' Function #1 email/i. GT 9 g A'T? ) Function #2 m aJ—e 5 n: um ‘Va\m+5 NM)“ and. FA b H- ‘éw ET C Function #3 cadres CampgunA-‘J tag 5 in; *4 Vi? Q0396 gar ombo‘. i; eat—Hagar. . 3. (3 pts.) How does the term “anapleurotic” fit in with one of your answers in question #2 above? Explain. We“ *3 “1m: +\ +7- 4. (30 pts.) The following compounds have been discussed in this portion of our course. For each compound, do the following: 1) give its name (acronym is fine), 2) explain its fimction (in the context of this portion of the come), and 3) give the number-(S) of the complex arid/or pathway(s) that it is present in. Use following numbering system: 1. PDH complex 2. B-oxidation of fatty acids (starting with the free fatty acid) gawk W t , am e, \s gluconeogenesis (starting fi'om pyruvate) writ—u a “.6 I Kreb’s cycle Glycogen metabolism Pentose phosphate pathway 999w If a compound is present in more than one of the above, list all of them. However, do not guess. Points will be subtracted for wrong answers. carries 2' m1. E'kam mél *— ‘wdiw‘ $¢Aflm Cfimske'hbnfl) a) D “M k2. \ Name: T F? éi’l’llminc efiwo “Q N l . \ N“: t}; “H Function: R'Drwts 2W whamen 0‘:wa €61 ("z—"$1: ("14": o Pafliways‘ iium""'bers" 556Vé)f ll "i Q j I , u ’ — — an 1 H + CH b) BIS 103 4. (continued) +2. Name: CaPc (coon A / H Function: udeo hi\e wfie Mate. swcdnn’t, ml {5 m‘h as fines-(us Pathways (give numbers above): I a q «H H +\ d) #7, :n‘ir. Name: S’A’!) Q-QKLVM What xnuc\to'\-\‘OLL) +| Function: Wn‘cs e‘ s Pathways (give numbers above): I 2. ‘H +\ H Oj-IO nu, & {If} 6) +7, Name: 5 o 4-} n. 4’7- Function: Wh‘e, CD garb r $fl$ . Pathways (give numbers above): 3 + 2 3of4 4of4 BIS 103 Name \4% 5. Glutathione is an important biomolecule in most cells. (8 pts.) in) Draw its in the fOrIii that would predominate at pH 7. Relevant pKa’s are as follows: Amino acid pK.’s: a-carboxyl group (2.1), a—amino group (9.6) side chains: D (3.9) E (4.2) H (6.0) C (8.3) Y (10.1) K (10.5) R (12.5) Oligopeptide pK.’s: C-terminal carboxyl group (3.6), N-terminal group (7.4) an, o F} o H " \\ k u ‘ u —-I —- 0-0 as 0 ex ’ 5 lil “’t CH2 H H' \ 'LJfll/g 51-1 M 4-2. W +7- 4'7. (3 pts.) b) What is the function of glutathione in the cell? [GM—f ~5H’ (H’llre) ijwPS (3 pts.) c) What compound is required to allow glutathione to keep doing its job? Which metabolic pathway supplies that compound? NA D, H Fen-1..“ fl” 5/; hail pwl‘kw-t—«D *— 1 +2 6. (18 pts.) Draw the complete structure of palmitoyl-S-COA. Then show the reactions for the fi_rs;_t_ B-oxidation gcle. Include structures (but structures like ATP, NAD+, etc. need not be drawn). Include the general enzyme unifies. Yen may use the back (if this page. +2. o th2—5- Col’r 4— Fax) “’ H N31)“. H Mgfixojm '“ ’4ka + H4 o 6 +\ -\'l ...
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This note was uploaded on 01/29/2010 for the course BIS 103 taught by Professor Abel during the Fall '08 term at UC Davis.

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Key Mid 2 Fall 2009 - lof4 BIS 103 Name K Last 3 FirSt...

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