One of the early steps in the
citric acid cycle is the conversion of oxaloacetate to citrate..
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One of the early steps in the
citric acid cycle is the conversion of oxaloacetate to...
Which of the following is an anaplerotic reaction for the citric acid cycle? O conversion of pyruvate to acetyl-CoA...
Which of the following is an anaplerotic reaction for the citric acid cycle? O conversion of pyruvate to acetyl-CoA O conversion of glutamic acid to e-ketoglutarate O conversion of citrate to oxaloacetate and acetyl-CoA conversion of oxaloacetate to pyruvate O conversion of succinyl-Cos to heme
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...
Acetyl COA + H2O Coo- o coo- Citrate synthase CH2 -OH -ooc— CH2 CH2 NADH +...
Acetyl COA + H2O Coo- o coo- Citrate synthase CH2 -OH -ooc— CH2 CH2 NADH + H+ COO- Oxaloacetate Coo- Citrate Aconitase Malate dehydrogenase NAD+ - Çoo- Çoo- ---OH -O00—-H HO-CH CH2 CH2 Coo- Malate Coo- Isocitrate Isocitrate lyase Malate synthase COO- COO- Coh CH2 Acetyl COA + H2O Ho Glyoxylate coo Succinate Figure 17.23 Biochemistry, Seventh Edition 2012 W. H. Freeman and Company Question 1 (10 pts) Using diagrams show the pathway that is used to convert succinate to...
acetyl-CoA COA The reactions of the citric acid cycle are shown in the image. As labeled...
acetyl-CoA COA The reactions of the citric acid cycle are shown in the image. As labeled in the diagram, reactions 1, 3, and 4 are regulation points in the citric acid cycle. oxaloacetate citrate synthase citrate NADH +Hi 7 malate dehydrogenase NAD malate aconitase 2 Which molecule inhibits reaction 1? isocitrate 7 fumarase NAD isocitrate dehydrogenase 3 NADH + H+ O citrate O NAD acetyl-CoA + CO2 fumarate C-ketoglutarate FADH succinate O dehydrogenase FAD O-ketoglutarate a dehydrogenase NAD + COA...
_--carbon molecule QUESTION 10 During the citric acid cycle, acetyl CoA covalently binds to oxaloacetate to...
_--carbon molecule QUESTION 10 During the citric acid cycle, acetyl CoA covalently binds to oxaloacetate to form citrate, a A six B four C. five D. two E three
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 +...
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...
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:...
The levels of which metabolite determine whether acetyl COA can enter the citric acid cycle? a....
The levels of which metabolite determine whether acetyl COA can enter the citric acid cycle? a. succinate b. a-ketoglutarate c. citrate d. oxaloacetate
3. (10 pts) Citrate synthase catalyzes the reaction: Oxaloacetate + acetyl – COA → citrate +...
3. (10 pts) Citrate synthase catalyzes the reaction: Oxaloacetate + acetyl – COA → citrate + HS – COA The standard free energy change for the reation is -31.5 k] . mol-1. a) Calculate the equilibrium constant for this reaction at 37°C. b) Would you expect this reaction to serve as a control point for its pathway (the citric acid cycle)?
Which of the following is an anaplerotic reaction for the citric acid cycle? O conversion of pyruvate to acetyl-CoA O conversion of glutamic acid to e-ketoglutarate O conversion of citrate to oxaloacetate and acetyl-CoA conversion of oxaloacetate to pyruvate O conversion of succinyl-Cos to heme
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...
Acetyl COA + H2O Coo- o coo- Citrate synthase CH2 -OH -ooc— CH2 CH2 NADH + H+ COO- Oxaloacetate Coo- Citrate Aconitase Malate dehydrogenase NAD+ - Çoo- Çoo- ---OH -O00—-H HO-CH CH2 CH2 Coo- Malate Coo- Isocitrate Isocitrate lyase Malate synthase COO- COO- Coh CH2 Acetyl COA + H2O Ho Glyoxylate coo Succinate Figure 17.23 Biochemistry, Seventh Edition 2012 W. H. Freeman and Company Question 1 (10 pts) Using diagrams show the pathway that is used to convert succinate to...
acetyl-CoA COA The reactions of the citric acid cycle are shown in the image. As labeled in the diagram, reactions 1, 3, and 4 are regulation points in the citric acid cycle. oxaloacetate citrate synthase citrate NADH +Hi 7 malate dehydrogenase NAD malate aconitase 2 Which molecule inhibits reaction 1? isocitrate 7 fumarase NAD isocitrate dehydrogenase 3 NADH + H+ O citrate O NAD acetyl-CoA + CO2 fumarate C-ketoglutarate FADH succinate O dehydrogenase FAD O-ketoglutarate a dehydrogenase NAD + COA...
_--carbon molecule QUESTION 10 During the citric acid cycle, acetyl CoA covalently binds to oxaloacetate to form citrate, a A six B four C. five D. two E three
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 +...
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...
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:...
3. (10 pts) Citrate synthase catalyzes the reaction: Oxaloacetate + acetyl – COA → citrate + HS – COA The standard free energy change for the reation is -31.5 k] . mol-1. a) Calculate the equilibrium constant for this reaction at 37°C. b) Would you expect this reaction to serve as a control point for its pathway (the citric acid cycle)?
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