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Unformatted text preview: Which of the following statements about fructose 1,6 bigghosghate is TRUE? X It is synthesized from fructose-l—phosphate by the action of phosphofructokinase-I . /b/.- 7‘ It functions in gluconeogenesis but not glycolysis /c{’ ‘A It can not be degrade to fructose-G—phosphate. /d./ It is an allosteric regulator of phosphofructokinase-I. q It stimulates pyruvate kinase. ‘ '7. Which of the following enzymes does NOT have ATP as a substrate or going}? —’ /a/ hexokinase 7K / b. phosphorylase kinase y phosphoglycerate kinase , , pyruvate carboxylasex I a Succinyl-COA synthetase \35 65 (31V . 8. Citrate synthase activity is regulated by each of the following EXCEET: /{. the ATP/ADP ratio , g the availability of the cofactor, thiamine pyrophosphate® ,o./' the mun/HAW ratio (d? citrate d /e./ availability of oxaloacetatex/ 9. In Wan which of the following statements is TR . a. The energy yield (in terms of AWfi) from the breakage of an —1,4 glycosidic bond or an —1,6 glycosidic bond during glycogenolysis in the liver is about the same. )3/ Glucose-2r hésphate is a product of the action of debranching enzyme. g) UCOsidO-‘Qv c. The action of debranching enzyme results in the loss of all the energy found in -1,4— and —1,6 glycosidic bonds X Glycogen stores are the primary storage form of energy in the body. @ Glucose—l-phoephete is "fed“ into the glycolytic pathway by the action Pf phosphogluconutase. 4r (A MGM ms M m ham [OH (I Phi/SF '91.de 10. Which of the following equations, as written, is part of an anabolic process? ( \D‘LH \d (A p\/ / oxaloacetate + acetyl CoA ----> citrate + COASH /é glycogenn + Pi ----> glycogennd + Glucose-l-phosphate 2 of 12 10/22/2008 1:19 PM ...
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