Draw the products of the reaction of xylulose-5-phosphate anderythrose-4-phosphate catalyzed by transketolase in thepentose phosphate pathway. Provide the structure in theprotonation state found in physiological conditions.HHHOHFOHO-HH-OHHOPO3²-QtransketolaseDrawglyceraldehyde-3-phosphateHH-HHHOOHOHOPO3²-Draw fructose-6-phosphateQII

The Pentose Phosphate Pathway also known as the Hexose monophosphate shunt is a metabolic pathway…

Answered: Draw the products of the reaction of…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Which one of the following regarding the chemistry of glycolysis & gluconeogenesis is FALSE? Reaction 6 of glycolysis catalyzed by glyceraldehyde-3-phosphate dehydrogenase involves oxidation & addition of a P; group. Reaction 3 of gluconeogenesis catalyzed by enolase involves hydration, the addition of water to a carbon-carbon double bond (C=C) to form an alcohol. Reaction 1 of gluconeogenesis catalyzed by pyruvate carboxylase involves decarboxylation. Reaction 9 of gluconeogenesis catalyzed by fructose-1,6-bisphosphatase involves dephosphorylation (phosphoester hydrolysis). Reaction 1 of glycolysis catalyzed by hexokinase involves phosphorylation (using ATP). O 0000
What is the function of glyceraldehyde 3-phosphate dehydrogenase? catalyzes the transfer of a phosphoryl group from ATP to an acceptor oxidation of the alcohol to an aldehyde dehydration and dephosphorylation of GAP hydrolysis of GAP oxidation by NAD+ and formation of acyl-phosphate
Order the cofactors based on their use in the mechanism of the a-etogluterate dehydrogenase complex. 1. Stabilizes a carbanion due to decarboxylation 2. Allows for the splitting of the carbon skeleton from the electron pair generated in a redox reaction 3. Enzyme bond electron carrier that is part of dihydrolipoyl dehydrogenase 4. Final electron acceptor in the overall reaction catalyzed by this complex 1 2 3 4 answer choices: lipoamide, biotin, 2 Fe - 2S cluster, TPP, NAD+, FAD
What if the phosphate group for the glycolysis reaction with enzyme glyceraldehyde 3-phosphate dehydrogenase was from ATP instead of Pi? What would the complete, balanced, net rxn of glycoslysisequation be and how does this impact the overall glycolysis rxn?
[methyl-14C]Pyruvate was administered to isolated liver cells in the presence of sufficient malonate to block succinate dehydrogenase completely. After a time, isocitrate was isolated and found to contain label in both carbon 2 and carbon 5: How do you explain this result?
Acetyi CoA Oxaloncetate CoA NADH Citrate NAD Isocitrate Malate Funiarate NAD co NADH FADH, FAD a- Ketoghutarate Succinate co, NAD+ ATP Succinyl CuA NADH ADP - P For each molecule of glucose (C6H12O6) oxidized by cellular respiration, how many moles of CO2 are released in the citric acid cycle? (see the figure above) а. 2 b. 4 с. 6 d. 0 е. 3
Which of the following monosaccharide phosphates is NOT produced in the pentose phosphate pathway? O seduheptulose-7-phosphate O mannose-6-phosphate O ribose-5-phosphate O erythrose-4-phosphate
The coenzyme NAD+ is required for which glycolytic reaction shown below? Oglyceraldehyde-3-P→ 1,3-bisphosphoglycerate glucose glucose-6-P fructose-6-P→ fructose-1,6-BP 2-phosphoglycerate → phosphoenolpyruvate
Below is an image of the Krebs cycle: acetyl-CoA oxaloacetate COASH H20 NADH NAD* H20 malate citrate fumarate isocitrate FADH2 NAD* CO2 FAD АТР NADH + ADP succinate GTP NAD+ a-ketoglutarate H20 GDP NADH + CO2 COASH succinyl CoA COASH Consider the conversion of succinate to fumarate, which is coupled with the production the electron carrier FADH2. If this reaction was NOT coupled with the production of FADH2 (and only catalyzed the conversion of succinate to fumarate), how would this impact ATP production through cell respiration? OATP production would stop because no high energy electron carriers would be produced ATP production would still occur, but there would be a much lower ATP yield because a large number of electron carriers are no longer being made ATP production would stop because without FADH2 we will no longer have electrons moving through the electron transport chain ATP production would still occur, but there would be a slightly lower ATP yield because a small number of…
Identify the structure of the metabolites below, and name their glycolytic enzyme and metabolic step: Glucose 6-phosphoglucose 1-phosphoglucose Fructose 1-, 6-biphosphofructose Phosphoenol pyruvate 2-phosphoglycerate 3-phosphoglycerate Lactate o Pyruvate
Why does it make good metabolic sense for phosphoenolpyruvate carboxykinase, rather than pyruvate carboxylase, to be the primary target for the regulation of gluconeogenesis at the level of control of enzyme synthesis? Match the words in the left column to the appropriate blanks in the sentences on the right. fructose-1,6-bisphosphate pyruvate 3-phosphoglycerate increasing reducing glycolytic pathway forward acetaldehyde lactate phosphoenolpyruvate oxaloacetate citric acid cycle back glyceraldehyde- 3-phosphate Firstly, pyruvate carboxylase converts which can participate in the gluconeogenesis pathway, and also plays an additional metabolic role in aiding the entry of intermediates into the Hence, it makes sense for phosphoenolpyruvate carboxykinase (PEPCK) to catalyze the conversion of gluconeogenesis pathway , thereby pyruvate carboxylase. to to Thirdly, PEPCK action results in the formation of amino acids and their subsequent entry into the citric acid cycle. Reset Help to push the…
Citrate synthase mediates the transfer of what functional group to produce citrate from Oxaloacetate?

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