Biochem carb met pud mcq 0.0 / 5 ? BiologycarbUniversityNone Created by: AmhCreated on: 04-03-16 13:36 Hexokinase is the first enzyme in the glycolytic pathway true 1 of 41 ATP is produced during synthesis of pyruvate from phosphoenolpyruvate by pyruvate kinase true 2 of 41 NADPH+ is the cofactor in glycolysis false 3 of 41 Aldolase catalysis is reversible which in glycolysis cleaves fructose 1,6-bisphosphate and in gluconeogenesis produces fructose 1,6-bisphosphate true 4 of 41 Lactate is the end-product of glycolysis in vigorously exercised leg white (fast twitch) muscles true 5 of 41 A. Acetyl CoA and oxalaloacetate are condensed to form citrate true 6 of 41 B. Glutamate is produced from a-ketoglutarate true 7 of 41 C. GTP is produced by substrate level phosphorylation true 8 of 41 D. Malate dehydrogenase requires FAD as reducing cofactor false 9 of 41 E. Fumarase dehydrates fumarate to malate false 10 of 41 Glycogen is insoluble in water false 11 of 41 glycogen contains one reducing glucose residue at its C-1 terminus true 12 of 41 glycogen has a backbone formed a1-2 glycosidic bonds false 13 of 41 glycogen has a similar shape to amylopepctin true 14 of 41 glycogen is stored in the liver for release then the blood sugar is low true 15 of 41 in glycogen degredation: glycogen phosphorylase hydrolyses 1-4 glycosidic bonds true 16 of 41 in glycogen degredation glycogen phosphorylase produces galactose 6-phosphat false 17 of 41 in glucogen degredation ATP is required False 18 of 41 in glycogen degredation ebranching enzyme cleaves beta1,6 glycosidic bonds to produce free glucose true 19 of 41 in glycoge degredation debranching enzyme lengthens the 1-4 backbone false 20 of 41 glycogen synthesis requires CDP-glucose as starting substrate false 21 of 41 glycogen synthesisB. glycogen synthetase requires glycogenin to produce a primer true 22 of 41 glycogen synthesis C. glycogen synthetase forms the 1-4 glycosidic backbone true 23 of 41 glycogen synthesis branching and debranching enzyme are the same protein false 24 of 41 glycogen synthesis E. branching forms a1-6 glycosidic bonds true 25 of 41 Gluconeogenesis produces galactose false 26 of 41 Gluconeogenesis requires enzymes present in both the cytosol and mitochondria true 27 of 41 Gluconeogenesis utilises lactate as substrate true 28 of 41 Gluconeogenesis uses phosphofructokinase to convert fructose 1,6-bisphosphate to fructose 6-phosphate false 29 of 41 Gluconeogenesis F. involves PEP carboxylation to oxaloacetate by PEP carboxykinase true 30 of 41 The Pentose phosphate pathway A. catalyses the production of 6-phosphogluconolactone from glucose 6-phosphate by glucose 6-phosphate dehydrogenase true 31 of 41 The PPP pathway is a net producer of ATP F 32 of 41 The pp pathway is a net poducer of ATP False 33 of 41 The pp pathway produces octoheptulos 8-phosphate false 34 of 41 the pp pathway produces a ribose 5 phosphate true 35 of 41 In monosaccharide metabolism Fructose is phosphorylated to fructose-1-phosphate by fructokinase in the liver true 36 of 41 In monosaccharide metabolism Fructose aldolase cleaves fructose-1-phosphate to pyruvate and 3-phosphoglycerate false 37 of 41 In monosaccharide metabolism C. Galactokinase phosphorylates galactose to galactose-1-phosphate true 38 of 41 In monosaccharide metabolism D. Galactose disposal requires UDP-glucose true 39 of 41 In monosaccharide metabolism E. Mannose is phosphorylated to mannose 6-phosphate by hexokinase true 40 of 41 what is glycogen the carb storage molecule 41 of 41
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