MCB_450_Practice_Problems_for_Exam_3-key

MCB_450_Practice_Problems_for_Exam_3-key - MCB 450 Practice...

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Unformatted text preview: MCB 450 Practice Problems for Exam 3 (Wfl> / 1) Write out in detail one round of the B-oxidation pathway starting from palmitic acid (C16). Include each step of the pathway, the intermediate structures and the enzymes involved. Also include the final products produced after one complete round of the B-oxidation pathway. (You do not need to include the molecular detail of the carbon tail of palmitie acid that is not involved in the first round of the B-oxidation pathway.) “to C23 emu/i, GA 0 }< 07k a! 9.4%?) V‘ \\ S/C°»¢°1\ Y \ / 1 l x @ AAA/\Nm “54:05 “Cat 1 \ ‘ H0 H A - Co \ \IL 0 L,fi-k7drox7‘lacxll > My?) 2r mm" L D V“ V D 2) What are the final products formed from the complete oxidation of a C19 fatty acid in the B—oxidation pathway, ‘?Y‘0Fl0h\/i A CoA + ACZ‘l‘x/l ' COA 3) Draw out the molecular structures of a purine and pyrimidine. Draw a nucleotide tn'phosphate molecule. mu NH'L NH’L \ f I H \ ‘k I 4) What 1s the reciprocal control of glycogen phtfiphcfillase and glycogen synthase? And what enzyme catalyzes this modification? -« howl/“3V L450” 09496 mfiifrocml (,0an QM lD Y W Ag’pVi'HZA 0—? bvwbyh fkoSPADfYLSSL GM 3W“? Synm. r (PW flfm'vhoryl4“ £0441 “firmw- N ’Y? 0 N l0 mill 0 \b 0\ lo M \A H \fl\l 0‘ 9 Q ‘ai' H0 0” o 0 0 5) What is the Chemical reaction to form dTMP? And what is the form of the methyl donor needed in this reaction? 0 i) ll “Add. H CM \ >0, \ ,iuHPl If? (gt/Hi? l o N H CH1 0 USN‘O’ 0 H H mbllmtlfiv‘L—THF (E’CML O H H OH H m4 ‘A 6) Suppose that a random co-polymer consisting of 50% A and 50% C is used as a template for protein synthesis in a cell—free system. Give the kinds of proportions of amino acids that would be incorporated into nascent polypeptides. AM: L715 ‘ p m 0 when 0 AAC Asn 'fiwfsfido‘zww ACA 1% WM 95‘ 4% WWW ” Q “ lol km W! ’flw VHPro AC C Tlmr 00X pg Loon / I C C91” 5003 V’fio‘l and [/57 44.014 0; L715} fin} T [V‘- final I _ EAL Mi} ifigg (9 44 3 CA (Pro C CC Pro 7) Draw the methionine cycle. (You do not have to include chemical structures.) K‘? W1 ML/i/ltifininfla —-:-A—W (SAM) S’aflflwosyi “Million/mild mug (MWI (3W?) (SAM) S‘Men 057/ ’ Lomochi-elm. 8) In a transamination reaction, if your starting material is glutamate and oxaloacetate, what would the end products be from this reaction? {LL and Mahdi medial loEi (9 fivxd as farvbcic 0( — {Qt—Dalkkwtlre/ wa/l’lm‘; is “Mam mower COM-2.0 *Yva 01.0 Vlai' moi 4’0 Ciwao owl“ Mne— ruwln‘m I C00” C00“ (‘00— LCD—— I 1 ‘ Marita—H L30 AST KsNr'rT "4 l. czo l l 2—,?) H 1 l l , | («Lil COO COO fr”?- Ciroo ’ U30" W We we we) ...
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This note was uploaded on 02/09/2012 for the course MCB 450 taught by Professor Mintel during the Spring '07 term at University of Illinois at Urbana–Champaign.

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MCB_450_Practice_Problems_for_Exam_3-key - MCB 450 Practice...

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