:Acetyl CoA produced from pyruvate occurs in the cytosol. not depends on the coenzyme biotin. is activated when pyruvate dehydrogenase (PDH, E1) of the pyruvate dehydrogenase complex is phosphorylated by PDH kinase in the presence of ATP. involves the participation of lipoic acid. all of the above is reversible.

:Acetyl CoA produced from pyruvate occurs in the cytosol. not depends on the coenzyme biotin. is activated when pyruvate dehydrogenase (PDH, E1) of the pyruvate dehydrogenase complex is phosphorylated by PDH kinase in the presence of ATP. involves the participation of lipoic acid. all of the above is reversible.

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter19: The Tricarboxylic Acid Cycle

Section: Chapter Questions

Problem 22P: Study Figure 19.18 and decide which of the following statements is false. Pyruvate dehydrogenase is...

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When the energetic needs of hepatocytes are being met, which of the following occurs? Acetyl-CoA inhibits pyruvate carboxylase. ATP inhibits fructose 1,6-bisphosphatase (FBPase1). ATPactivatesglycogenphosphorylase(phosphorylasea). Acetyl-CoA stimulates pyruvate kinase. None of the above Please answer asap and in short and content should not be palgarised please
Elevated levels of acetyl-CoA will act as an effector for which of the following enzymes? more than one can be correct Pyruvate carboxylase. Pyruvate kinase Pyruvate dehydrogenase. Citrate synthase a-Ketoglutarate dehydrogenase.
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Assume that glycolysis is completely inhibited and thus glucose cannot be converted topyruvate. Which of the following statements is true?A. Levels of acetyl-CoA decrease in the liverB. Levels of oxaloacetate increase in the liverC. Both liver and brain primarily use b-hydroxybutyrate and acetoacetate as energy sourceD. None of the above
Pyruvate dehydrogenase catalyzes the conversion of pyruvate to acetyl CoA. In this reaction, one molecule each of the catalytic coenzymes TPP, FAD and lipoamide participate in the reaction but are not consumed. OTrue O False
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