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Question 3 40 pts Choose the correct answer from the list. No answer will be used...
Question 3 40 pts Choose the correct answer from the list. No answer will be used...
Question 3 40 pts Choose the correct answer from the list. No answer will be used twice. Not all of the answers will be used. provides a flexible linker between active sites within the pyruvate dehydrogenase (PDH) complex. [Choose] acetyl COA pyruvate dehydrogenase lipoamide thiamine pyrophosphate FAD endoplasmic reticulum mitochondria The coenzyme is the prosthetic group in the decarboxylation of pyruvate. [Choose ] is a large, multi-subunit enzyme complex that links glycolysis and the citric acid cycle under aerobic conditions....
-Which complex of electron transport chain does not have enough energy to pump protons out of...
-Which complex of electron transport chain does not have enough energy to pump protons out of the mitochondria? Complex 1, Complex 2, Complex 3, Complex 4 -Besides pyruvate, _______ from glycolysis is needed in a later stage of aerobic respiration. NADH, FADH2, COENZYME A, COENZYME Q -How much ATP is directly made from fermentation? 32, 0, 4, 2 -which enzyme of the citric acid cycle has the same 5 coenzymes as pyruvate dehydrogenase complex? succinate dehydrogenase, alpha ketoglutarate dehydrogenase, malate...
A) Acetyl coA is made from pyruvate in the [ Select ] ["mitochondrial matrix", "cytoplasm", "",...
A) Acetyl coA is made from pyruvate in the [ Select ] ["mitochondrial matrix", "cytoplasm", "", ""] by [ Select ] ["pyruvate dehydrogenase", "succinate dehydrogenase"] complex. In this process, the acetyl group is moved between enzymes within the complex by the [ Select ] ["lipoamide", "TPP"] . The [ Select ] ["dihydrolipoyl transacetylase", "pyruvate dehydrogenase component"] is the enzyme in which acetyl coA is actually formed. The [ Select ] ["FADH2", "lipoamide"] in the dihydrolipoyl dehydrogenase donates two electrons to...
What type of gradient is critical to ATP formation by oxidativephosphorylation?A.sodium ionB....
What type of gradient is critical to ATP formation by oxidative phosphorylation?A.sodium ionB.chloride ionC.protonD.potassium ionE.None of the answers is correct.Which of the following citric acid cycle intermediates would become depleted if malonate, a competitive inhibitor of succinate dehydrogenase, were present?A.citrateB.α-ketoglutarateC.succinateD.malateE.None of the answers is correct.Which of the following correctly pairs a coenzyme with the enzyme of the pyruvate dehydrogenase complex with which it is associated?A.coenzyme A: pyruvate dehydrogenaseB.NAD+: dihydrolipoyl dehydrogenaseC.lipoic acid: pyruvate dehydrogenase kinaseD.thiamine pyrophosphate: dihydrolipoyl dehydrogenaseE.FAD: dihydrolipoyl transacetylaseWhich of...
1. Select the TRUE statement about the citric acid cycle. A. Isocitrate dehydrogenase is a multienzyme...
1. Select the TRUE statement about the citric acid cycle. A. Isocitrate dehydrogenase is a multienzyme complex that is very similar to the pyruvate dehydrogenase complex B. The two decarboxylation steps occur right after each other, first via oxidative alpha- decarboxylation, then via oxidative beta- decarboxylation. C. In one turn of the cycle, the two carbons that enter the cycle as acetyl CoA are the same two carbons that are released as CO2. D. A flavin containing dehydrogenase enzymes oxidizes...
Choose the ONE BEST answer explaining how oxaloacetate and acetyl-CoA levels are balanced to maximize flux...
Choose the ONE BEST answer explaining how oxaloacetate and acetyl-CoA levels are balanced to maximize flux through the citrate cycle when energy charge in the cell is lovw Oxaloacetate is required for mitochondrial shuttle systems, and therefore it makes sense to activate pyruvate carboxylase by ATP and inhibit it by malate. None of the answers are correct. The best way to balance the input of carbon into the citrate cycle is to regulate the production of citrate using vitamins like...
Assume a cell has just completed glycolysis and the resulting pyruvate has a c-14 radio label...
Assume a cell has just completed glycolysis and the resulting
pyruvate has a c-14 radio label on carbon -1. Highlight the carbon
on the attached pages as it passes through the PDH complex and the
TCA cycle until it is lost as CO2. If only a portion of the carbons
are lost stop highlighting when the CO2 first starts to come off.
ONLY ONE TIME THRU THE CYCLE ON EACH PAGE
2. Repeat question 1 but now assume the radio...
Question 18 3 pts You have a solution that contains the pyruvate dehydrogenase complex and all...
Question 18 3 pts You have a solution that contains the pyruvate dehydrogenase complex and all of the enzymes of the citric acid cycle, but none of the intermediates of the citric acid. If you add 3.0 mM each of pyruvate, coenzyme A, NAD, FAD, GDP, and Pi (inorganic phosphate), how much CO, would be produced? Assume all of the enzymes are 100% active. OOCO2 (none) 1.5 mM CO 3.0 mM CO2 6.0 MM CO2 9.0 mM CO2
Can someone quick answer/check these questions? Thank you, will rate! (the answers that I have came...
Can someone quick answer/check these questions? Thank you, will rate! (the answers that I have came up with are in bold) Please help 51- Glycogenesis involves the following steps a) isomerisation b) activation c) elongation or coupling d) branching e) all of the above 52 During the breakdown of glycogen, free glucose is formed from A. the reducing end. B. the non-reducing end. C. glucose residues in an a 1-->4 linkage to the chain. D. glucose residues in an...
15. Genetic defect in pyruvate dehydrogenase complex lead a. maple syrup urine disease b. phenyike d....
15. Genetic defect in pyruvate dehydrogenase complex lead a. maple syrup urine disease b. phenyike d. lactic acidemia e. pellagra syrup urine disease b, phenylketonuria c. galactosemia 10. Chemical modification by phosphorylation of pyruvate dehydros a. deactivates the enzyme b. activates the enzyme lation of pyruvate dehydrogenase complex : 17. Pyruvate carboxylase is positively ated through the allosteric mechanism by : a. ATP b. NADH c. Acetyl-SCOA d. TPP e. Biotin 18. Which of the listed coenzymes does not particip...
Question 3 40 pts Choose the correct answer from the list. No answer will be used twice. Not all of the answers will be used. provides a flexible linker between active sites within the pyruvate dehydrogenase (PDH) complex. [Choose] acetyl COA pyruvate dehydrogenase lipoamide thiamine pyrophosphate FAD endoplasmic reticulum mitochondria The coenzyme is the prosthetic group in the decarboxylation of pyruvate. [Choose ] is a large, multi-subunit enzyme complex that links glycolysis and the citric acid cycle under aerobic conditions....
Choose the ONE BEST answer explaining how oxaloacetate and acetyl-CoA levels are balanced to maximize flux through the citrate cycle when energy charge in the cell is lovw Oxaloacetate is required for mitochondrial shuttle systems, and therefore it makes sense to activate pyruvate carboxylase by ATP and inhibit it by malate. None of the answers are correct. The best way to balance the input of carbon into the citrate cycle is to regulate the production of citrate using vitamins like...
Assume a cell has just completed glycolysis and the resulting
pyruvate has a c-14 radio label on carbon -1. Highlight the carbon
on the attached pages as it passes through the PDH complex and the
TCA cycle until it is lost as CO2. If only a portion of the carbons
are lost stop highlighting when the CO2 first starts to come off.
ONLY ONE TIME THRU THE CYCLE ON EACH PAGE
2. Repeat question 1 but now assume the radio...
Question 18 3 pts You have a solution that contains the pyruvate dehydrogenase complex and all of the enzymes of the citric acid cycle, but none of the intermediates of the citric acid. If you add 3.0 mM each of pyruvate, coenzyme A, NAD, FAD, GDP, and Pi (inorganic phosphate), how much CO, would be produced? Assume all of the enzymes are 100% active. OOCO2 (none) 1.5 mM CO 3.0 mM CO2 6.0 MM CO2 9.0 mM CO2
15. Genetic defect in pyruvate dehydrogenase complex lead a. maple syrup urine disease b. phenyike d. lactic acidemia e. pellagra syrup urine disease b, phenylketonuria c. galactosemia 10. Chemical modification by phosphorylation of pyruvate dehydros a. deactivates the enzyme b. activates the enzyme lation of pyruvate dehydrogenase complex : 17. Pyruvate carboxylase is positively ated through the allosteric mechanism by : a. ATP b. NADH c. Acetyl-SCOA d. TPP e. Biotin 18. Which of the listed coenzymes does not particip...
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