Pyruvate can be converted to glucose via gluconeogenesis, or it can be oxidized toacetyl-CoA for energy production. The enzyme pyruvate carboxylase is regulatedallosterically by which of the following?OxaloacetateAll of the aboveAcetyl COAGlucose-6-phosphateFructose-6-phosphate

Glycolysis is the collection of 10 enzymatically catalysed reactions that oxidises a 1 molecule of…

Answered: Pyruvate can be converted to glucose…

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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Similar questions

What enzyme(s) is/are specifically required for the oxidation of a Aeven monounsaturated fatty acid? (select all that apply) O Methylmalonyl CoA Mutase O enoyl-CoA Hydratase 43-enoyl-CoA isomerase Thiolase 2,4-Dienoyl-CoA Reductase OPropionyl-CoA carboxylase
Which of the following statements is true for the shown reactions? Deficiency of oxaloacetate stimulates the formation of X and y Insulin signaling stimulates the formation of X and Y Both A and B Neither A nor B
The glycolytic enzymes hexokinase and glucokinase (in human liver cells) catalyze the conversion of: 1,3-bisphosphoglycerate into 3-phosphoglycerate (producing ATP) glyceraldehyde-3-phosphate into 1,3-bisphosphoglycerate (producing NADH) phosphoenolpyruvate into pyruvate (producing ATP) fructose-6-phosphate into fructose-1,6-bisphosphate (consuming ATP) glucose into glucose-6-phosphate (consuming ATP) Which of the following glycolytic enzymes must consume ATP during phosphorylation of its preferred substrate molecule? phosphoglycerate mutase succinate dehydrogenase phosphoglycerate kinase phosphofructokinase pyruvate kinase
In the first step of the TCA cycle the acetyl group of acetyl-CoA is transferred to oxaloacetate to produce citrate. Where will the carbonyl carbon of that acetyl group be after the first CO2 is expelled? Group of answer choices The first carbon of α-ketoglutarate The last carbon of α-ketoglutarate The fourth carbon of α-ketoglutarate The third carbon of α-ketoglutarate
Each of the following enzymes are similar in that they are all regulation points for the pathway/cycle they operate in ... except for one enzyme. Which of the following is not a regulated enzyme? Pyruvate carboxylase Transketolase Glycogen phosphorylase Citrate Synthase Phosphofructokinase Acetyl CoA carboxylase 888888
The first step of gluconeogenesis involves the carboxylation of pyruvate and has a large negative delta G (i.e very exergonic). Explain how it is possible that this step can be exergonic if we know that adding CO2 onto molecules is fundamentally a destabilizing phenomenon?
Arsenate can replace inorganic phosphate in the reaction catalyzed by glyceraldehyde-3-phosphate dehydrogenase, causing glyceraldehyde-3-phosphate to be directly converted to 3-phosphoglycerate(NADH is still formed). Which of the following is absolutely true in case of arsenate poisoning -Glycolysis will stop - Glycolysis will still proceed with no net ATP gain - Glycolysis will not generate any form of energy - Glycolysis will still proceed, but with a net consumption of ATP - Glycolysis will proceed with lactate as end product
When acetyl-CoA containing radioactively labeled carbon atoms is fed to cells, the CO, produced is not initially radioactive. However, molecules of citrate and oxaloacetate are radioactive. Only after some time has passed will radioactive CO2 be released. What is the best explanation for this observation?
Which of the following catalyzes a step that does NOT produce CO2? Group of answer choices alpha-ketoglutarate dehydrogenase complex malate dehydrogenase pyruvate dehydrogenase complex isocitrate dehydrogenase Citrate synthase is regulated by... Group of answer choices Concentrations of substrate and products Fructose-2,6-Bisphosphate Covalent modification Allosteric regulation by the levels of NADDH

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Pyruvate can be converted to glucose via gluconeogenesis, or it can be oxidized to acetyl-CoA for energy production. The enzyme pyruvate carboxylase is regulated allosterically by which of the following? Oxaloacetate All of the above Acetyl CoA Glucose-6-phosphate Fructose-6-phosphate