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Question 8 Not yet answered Points out of 1.00 Flag question Which of the following enzymes...
Which of the following citric acid cycle enzymes lead to the formation of NADH and are...
Which of the following citric acid cycle enzymes lead to the formation of NADH and are regulatory enzymes? Isocitrate dehydrogenase Succinyl-CoA synthetase Succinate dehydrogenase Malate dehydrogenase • Citrate synthase
1. The enzyme responsible for the substrate level phosphorylation in the citric acid cycle is: a...
1. The enzyme responsible for the substrate level phosphorylation in the citric acid cycle is: a succinate dehydrogenase b. a-ketoglutarate dehydrogenase c. succinyl thiokinase d. isocitrate dehydrogenase e. aconitase 2. Which of the listed enzymes of the TCA cycle does not represent a regulatory enzyme?: a. isocitrate dehydrogenase b. succinate dehydrogenase c. malate dehydrogenase d. a-ketoglutarate dehydrogenase complex e. citrate synthase 3. Oxidative decarboxylation of pyruvic acid is regulated by: a. cyclic AMP-dependent mechanism b. cyclic AMP-independent mechanism 4. The...
Which enzymes require thiamine as a co-factor A. Isocitrate dehydrogenase and citrate synthase B. Malate dehydrogenase...
Which enzymes require thiamine as a co-factor A. Isocitrate dehydrogenase and citrate synthase B. Malate dehydrogenase and alpha-ketoglutarate dehydrogenase C. Pyruvate dehydrogenase and isocitrate dehydrogenase D. Pyruvate dehydrogenase and succinyl-CoA synthetase E. Succinate dehydrogenase and pyruvate dehydrogenase
9. Which of the listed enzymes of the TCA cycle is regulated by phosphorylation/dephosphorylation cycle ?...
9. Which of the listed enzymes of the TCA cycle is regulated by phosphorylation/dephosphorylation cycle ? :a. isocitrate dehydrogenase b. succinate dehydrogenase c. malate dehydrogenase d. α-ketoglutarate dehydrogenase complex\}c. citrate synthase10. Name the enzyme catalyzing the following reaction:a. PEP carboxykinaseb. pyruvate kinasec. malic enzymed. pyruvate carboxylase11. Name the enzyme that catalyzes the reaction:glyoxylate +CH3CO-SCoA → malate + HSCoAa. malate synthaseb. succinate thiokinasec. aconitased. isocitrate
9. Which of the listed enzymes of the TCA cycle is regulated by phosphorylation/dephosphorylation cycle ?...
9. Which of the listed enzymes of the TCA cycle is regulated by phosphorylation/dephosphorylation cycle ? : a. isocitrate dehydrogenase b. succinate dehydrogenase c. malate dehydrogenase d. a-ketoglutarate dehydrogenase complex e. citrate synthase 10. Name the enzyme catalyzing the following reaction: COOH + GTP - PEP + CO2 + GDP C=0 CH2 COOH a. PEP carboxykinase b. pyruvate kinase d. pyruvate carboxylase c. malic enzyme 11. Name the enzyme that catalyzes the reaction: glyoxylate + CH3CO-SCOA -- → malate +...
the citric acid cycle has 8 enzymes: citrate synthase, aconitase, isocitrase dehydrogenase,.... 1 Jom L C...
the citric acid cycle has 8 enzymes: citrate synthase,
aconitase, isocitrase dehydrogenase,....
1 Jom L C Tegulation TCA cycle (Ch. 16) 1. The citric acid cycle has eight enzymes: citrate synthase, aconitase, isocitrate dehydrogenase, a-ketoglutarate dehydrogenase, succinyl-CoA synthetase, succinate dehydrogenase, fumarase, and malate dehydrogenase. (a) Write a balanced equation for the reaction catalyzed by each enzyme. (b) Name the cofactor(s) required by each enzyme reaction. (c) For each enzyme determine which of the following describes the type of reaction(s) catalyzed:...
Question 24 (1 point) Which of the following enzymes does not catalyze a reaction in which...
Question 24 (1 point) Which of the following enzymes does not catalyze a reaction in which carbon dioxide (CO2) is released? O Alpha-ketoglutarate dehydrogenase Pyruvate dehydrogenase Malate dehydrogenase Isocitrate dehydrogenase Question 25 (1 point) The acute toxicity of cyanide to mammals is primarily caused by its ... O inhibition of cytochrome oxidase. O action as an uncoupler of oxidative phosphorylation. O inhibition of complex I of the electron transport chain. O inhibition of the citric acid cycle enzyme succinate dehydrogenase,
Part B Use the structures given in the cycle shown before this part identify the enzymes involved in each step of the citric acid cycle by completing each sentence Match the words in the left column...
Part B Use the structures given in the cycle shown before this part identify the enzymes involved in each step of the citric acid cycle by completing each sentence Match the words in the left column to the appropriate blanks in the sentences on the right. View Available Hint(s) Reset Help isocitrate dehydrogenase aconitase citrate synthase fumarate hydratase succinate dehydrogenase succinyl-CoA synthetase a-ketoglutarate dehydrogenase malate dehydrogenase In step 1, oxaloacetate condenses with acetyl-CoA to form citrate, which is catalyzed by...
Question 16 Not yet answered The rate-limiting factor that determines whether a cell can undergo anaerobic...
Question 16 Not yet answered The rate-limiting factor that determines whether a cell can undergo anaerobic glycolysis is the amount of Points out of 1.00 P Flag Question Select one: O a. protons available O b. pyruvate available O c. lactate dehydrogenase available. O d. ATP it produces Blocking lactate dehydrogenase in a cell producing ATP in the absence of oxygen would Question 17 Not yet answered Points out of 100 P Flag question Select one: O a. halt the...
not sure about reaction 3 and 4 acetyl-CoA COA The reactions of the citric acid cycle...
not sure about reaction 3 and 4
acetyl-CoA COA The reactions of the citric acid cycle are shown in the figure Reactions 1, 3, and 4 are regulation points in the citric acid cycle. 1 citrate oxaloacetate 1 synthase citrate NADH + NAD malate dehydrogenase aconitase 2 malate Which of the molecules inhibits reaction 1? Isocitrate HO 17 fumarase NAD socitrate 3 dehydrogenase S D NADP ADP ОАТР O citrate synthase fumarate FADHI succinate co-ketoglutarate dehydrogenase ci-ketoglutarate NAD dehydrogenase +...
Which of the following citric acid cycle enzymes lead to the formation of NADH and are regulatory enzymes? Isocitrate dehydrogenase Succinyl-CoA synthetase Succinate dehydrogenase Malate dehydrogenase • Citrate synthase
1. The enzyme responsible for the substrate level phosphorylation in the citric acid cycle is: a succinate dehydrogenase b. a-ketoglutarate dehydrogenase c. succinyl thiokinase d. isocitrate dehydrogenase e. aconitase 2. Which of the listed enzymes of the TCA cycle does not represent a regulatory enzyme?: a. isocitrate dehydrogenase b. succinate dehydrogenase c. malate dehydrogenase d. a-ketoglutarate dehydrogenase complex e. citrate synthase 3. Oxidative decarboxylation of pyruvic acid is regulated by: a. cyclic AMP-dependent mechanism b. cyclic AMP-independent mechanism 4. The...
9. Which of the listed enzymes of the TCA cycle is regulated by phosphorylation/dephosphorylation cycle ? :a. isocitrate dehydrogenase b. succinate dehydrogenase c. malate dehydrogenase d. α-ketoglutarate dehydrogenase complex\}c. citrate synthase10. Name the enzyme catalyzing the following reaction:a. PEP carboxykinaseb. pyruvate kinasec. malic enzymed. pyruvate carboxylase11. Name the enzyme that catalyzes the reaction:glyoxylate +CH3CO-SCoA → malate + HSCoAa. malate synthaseb. succinate thiokinasec. aconitased. isocitrate
9. Which of the listed enzymes of the TCA cycle is regulated by phosphorylation/dephosphorylation cycle ? : a. isocitrate dehydrogenase b. succinate dehydrogenase c. malate dehydrogenase d. a-ketoglutarate dehydrogenase complex e. citrate synthase 10. Name the enzyme catalyzing the following reaction: COOH + GTP - PEP + CO2 + GDP C=0 CH2 COOH a. PEP carboxykinase b. pyruvate kinase d. pyruvate carboxylase c. malic enzyme 11. Name the enzyme that catalyzes the reaction: glyoxylate + CH3CO-SCOA -- → malate +...
the citric acid cycle has 8 enzymes: citrate synthase,
aconitase, isocitrase dehydrogenase,....
1 Jom L C Tegulation TCA cycle (Ch. 16) 1. The citric acid cycle has eight enzymes: citrate synthase, aconitase, isocitrate dehydrogenase, a-ketoglutarate dehydrogenase, succinyl-CoA synthetase, succinate dehydrogenase, fumarase, and malate dehydrogenase. (a) Write a balanced equation for the reaction catalyzed by each enzyme. (b) Name the cofactor(s) required by each enzyme reaction. (c) For each enzyme determine which of the following describes the type of reaction(s) catalyzed:...
Question 24 (1 point) Which of the following enzymes does not catalyze a reaction in which carbon dioxide (CO2) is released? O Alpha-ketoglutarate dehydrogenase Pyruvate dehydrogenase Malate dehydrogenase Isocitrate dehydrogenase Question 25 (1 point) The acute toxicity of cyanide to mammals is primarily caused by its ... O inhibition of cytochrome oxidase. O action as an uncoupler of oxidative phosphorylation. O inhibition of complex I of the electron transport chain. O inhibition of the citric acid cycle enzyme succinate dehydrogenase,
Part B Use the structures given in the cycle shown before this part identify the enzymes involved in each step of the citric acid cycle by completing each sentence Match the words in the left column to the appropriate blanks in the sentences on the right. View Available Hint(s) Reset Help isocitrate dehydrogenase aconitase citrate synthase fumarate hydratase succinate dehydrogenase succinyl-CoA synthetase a-ketoglutarate dehydrogenase malate dehydrogenase In step 1, oxaloacetate condenses with acetyl-CoA to form citrate, which is catalyzed by...
Question 16 Not yet answered The rate-limiting factor that determines whether a cell can undergo anaerobic glycolysis is the amount of Points out of 1.00 P Flag Question Select one: O a. protons available O b. pyruvate available O c. lactate dehydrogenase available. O d. ATP it produces Blocking lactate dehydrogenase in a cell producing ATP in the absence of oxygen would Question 17 Not yet answered Points out of 100 P Flag question Select one: O a. halt the...
not sure about reaction 3 and 4
acetyl-CoA COA The reactions of the citric acid cycle are shown in the figure Reactions 1, 3, and 4 are regulation points in the citric acid cycle. 1 citrate oxaloacetate 1 synthase citrate NADH + NAD malate dehydrogenase aconitase 2 malate Which of the molecules inhibits reaction 1? Isocitrate HO 17 fumarase NAD socitrate 3 dehydrogenase S D NADP ADP ОАТР O citrate synthase fumarate FADHI succinate co-ketoglutarate dehydrogenase ci-ketoglutarate NAD dehydrogenase +...
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