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2 - The biochemical principles that we studied 1n this...

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Unformatted text preview: The biochemical principles that we studied 1n this course can be: applied to the organization of all . metabolic pathways Shown above are the first four steps (labelled A to I) of the “PentOSe Phosphate Pathway”. This pathWay for catabolism of glucose is active in certain cell types, such as 1ed blood cells , I The nex1‘five questions K# 8-12) pertain to the pathway shown m the dlagram above ' 8. Which reaction is a decarboxylation? AM. B>B . (3° _, D)? r,_,.EMonc-rfithaebovs, 9. Which reaction is catalyzed by an epimerase 7 mA "mB 0c mD‘Cfmmmfifiafi; 10. Which reaction requires thei Input of ATP energy? MA m3 QC mD 'mmmfimwma 11. Reaction A (proceeding in the direction shown) reduires the co—factor: - A) acetleoA; ‘ - B) FADHZ; C) FMTNH'Z; D) NADH, E) NADP+. ' 12. Reaction B (proceeding in the direction shoWn) is best described as a(n)' .g. A) dehydration; B) hydrolysis; C) reduction;. D) ligation; E) oXidation. 13 Complex I of the mitochondrial eleCtron transport chain" A) catalyzes the 0Xidat10n of NADH; B) catalyzes the reduction of coenzyme Q; C) catalyzes the transfer of protons from the matrix to the inter-membrane space; VD) IS sensitive to inhibition by the natural product rotenone; E) all of the above statements are correct. ' ...
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