Pyruvate is converted to Acetyl-CoA a. Through oxidative carboxylation process in the cytoplasm b. Through glucose-6-phosphatase in the liver c. Through dehydration process in the mitochondrial matrix d. Through aldolase in the cytoplasm e. Through oxidative decarboxylation process in the mitochondrial matrix

Pyruvate is converted to Acetyl-CoA a. Through oxidative carboxylation process in the cytoplasm b. Through glucose-6-phosphatase in the liver c. Through dehydration process in the mitochondrial matrix d. Through aldolase in the cytoplasm e. Through oxidative decarboxylation process in the mitochondrial matrix

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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Glucagon release triggers an increase in activity in mitochondrial pyruvate carrier (MPC). Which of the following does not account for this observation in the live A.Carbon skeleton of malate is exported to cytosol for conversion to oxaloacetate B.Pyruvate is the primary source for generating acetyl-CoA C.Glucose is being produced via gluconeogenesis D.Low blood sugar is triggers glucagon release to allow for glucose production by the liver
Which of these enzymes is NOT associated with the inner mitochondrial membrane? All of these enzymes are associated with the inner mitochondrial membrane Pyruvate dehydrogenase Succinate dehydrogenase None of these are are associated with the inner mitochondrial membrane Glycerol 3 phosphate dehydrogenase
Before pyruvate enters the citric acid cycle, it is decarboxylated, oxidized, and combined with coenzyme A, forming acetyl CoA, carbon dioxide, and one molecule of (a) NADH (b) FADH2 (c) ATP (d) ADP (e) C6H12O6
Pyruvate is converted to Acetyl-CoA Select :- a. Through oxidative carboxylation process in the cytoplasm b.Through oxidative decarboxylation process in the mitochondrial matrix C. Through dehydration process in the mitochondrial matrix d.Through glucose-6-phosphatase in the liver
The citric acid cycle consumes oxygen Group of answer choices True False Oxidative phosphorylation converts the phosphoryl-transfer potential of ATP into the electron transfer potential of NADH and FADH2 Group of answer choices True False Carbohydrate metabolism is the source of all acetyl CoA that enters the citric acid cycle Group of answer choices True False
If the enzyme that catalyzed the reaction that converts pyruvate to acetyl-CoA and carbon dioxide is inhibited: a. the production of ATP would decreases but the production of electron carriers would be unaffected b. the concentration of pyruvate would decrease c. the citric acid cycle will not be affected d. ATP production in the electron transport chain/oxidative phosphorylation will increase e. the concentration of acetyl Co A would decrease
Which of the following is a negative regulator of the pyruvate dehydrogenase complex (PDC)? 1. acetyl CoA 2. ADP 3. pyruvate 4. citrate
Which of the following should inhibit the PDC by feedback inhibition? Choose all that apply. NADH NAD+ CoASH Acetyl-CoA Pyruvate Glucose 6-phosphate
The alternative fate of pyruvate in the mitochondrial matrix is the conversion of pyruvate to __________ catalyzed by __________________ ? Oxaloacetate, pyruvate carboxylase Alanine, alanine aminotransferase Lactate, Lactate dehydrogenase Acetyl-Co, PDHC
The high energy electrons that are stripped off acetyl CoA in _________are taken to the electron transport chain. As they move through the electron transport chain, these high energy electrons are pulled to lower and lower energy levels, finally combining with ________, chemiosmotic phosphorylation; oxygen the fermentation pathways; carbon dioxide ATP synthase; nitrogen the citric acid cycle; oxygen
___ molecules of ATP are ultimately formed per every acetyl-CoA that enters the citric acid cycle and the remaining ATP molecules are generated via the ___ of NADH and FADH2. A) Nine; oxidation B) Ten; reduction C) Ten; oxidation D)Nine; reduction
If glucose labeled with radioactive 14C carbon-1 goes through glycolysis and one turn of the citric acid cycle which carbon(s) in oxaloacetate will be radioactively labeled?C1C2C3C4None of oxaloacetate carbons will be labeled