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Malonate is a competitive inhibitor of succinate dehydrogenase. If malonate is added to a preparation that...
Propose an experiment to demonstrate that malonate is a competitive inhibitor of Succinate DeHydrogenase rather than...
Propose an experiment to demonstrate that malonate is a competitive inhibitor of Succinate DeHydrogenase rather than a non-competitive inhibitor.
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...
12. Which enzyme catalyzes the reaction shown? Oo 9% a. succinyl-CoA synthetase b. succinate dehydrogenase c....
12. Which enzyme catalyzes the reaction shown? Oo 9% a. succinyl-CoA synthetase b. succinate dehydrogenase c. pyruvate dehydrogenase d、a-ketoglutarate dehydrogenase 13. Which of the reactions of the citric acid cycle requires FAD as a coenzyme? a. the conversion of isocitrate to a-ketoglutarate b. the conversion of citrate to isocitrate c. the conversion of succinate to fumarate d. the conversion of malate to oxaloacetate 14. Another name for Complex I in the electron transport chain is a. cytochrome c oxidase. b....
Intact mitochondrial were isolated, carefully washed with pH 7.0 buffer, and used to measure the P/O...
Intact mitochondrial were isolated, carefully washed with pH 7.0 buffer, and used to measure the P/O ratio for α-ketoglutarate. Included in your assay for the measurements were ADP, phosphate (Pi), NAD+, and malonate in an appropriate buffer. Assume that all the added compounds can get into the mitochondrial matrix and that all enzymes of the citric acid cycle are active. Note that malonate is a competitive inhibitor or succinate dehydrogenase. Under these conditions, what would be the P/O ratio for...
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...
35. Intact mitochondrial were isolated, carefully washed with pH 7.0 buffer, and used to measure the...
35.
Intact mitochondrial were isolated, carefully washed with pH 7.0
buffer, and used to measure the P/O ratio for α-ketoglutarate
35. Intact mitochondrial were isolated, carefully washed with pH 7.0 buffer, and used to measure the P/O ratio for a-ketoglutarate. Included in your assay for the measurements were ADP, phosphate (Pi), NAD+, and malonate in an appropriate buffer. Assume that all the added compounds can get into the mitochondrial matrix and that all enzymes of the citric acid cycle are...
biochemistry if you could please help me answer the following questions! * 1. (5 pts) Which...
biochemistry
if you could please help me answer the following questions!
* 1. (5 pts) Which of the following is a catalytic mechanism utilize by enzymes? Multiple answers may be correct. Select all that are correct. 1. Acid-base a) acid-base catalysis d. metal-ion catalysis 12. Covalent b covalent catalysis e. transition state binding c. heterogeneou 3. Metalion . Proximin onentation, E 2. 76 pts) What is the "steady-state" assumption in the derivation of the s.clectrosch? Tynsin Michaelis-Menten equation? Sie binding...
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...
? 3. See Chemistry Around Us 20.3 Cases of antfreeze poisoning are often treated by using a compettive inhibitor of the enzyme alcohol dehydrogenase a Two compounds that are likely to react wit...
?
3. See Chemistry Around Us 20.3 Cases of antfreeze poisoning are often treated by using a compettive inhibitor of the enzyme alcohol dehydrogenase a Two compounds that are likely to react with this enzyme are Models and b Fill in the boxes in the diagram with the numbers of the correct models Bubstrace (poson) Acchol Denydrogenase Nomal Product reatment) c. Describe the relationship between Models 3 1 and 3 3 3 2 and 33 d. Increasing the concentration of...
Compare competitive and noncompetitive inhibition Question Suppose that glycerol (CH,OHCH(OH)CH,OH) is a substrate in a...
Compare competitive and noncompetitive inhibition Question Suppose that glycerol (CH,OHCH(OH)CH,OH) is a substrate in an enzyme-catalyzed biochemical reaction and propylene glycol (CH OHCH(OH)CHZ) is an inhibitor of the reaction. Would you expect propylene glycol to be a competitive or noncompetitive inhibitor? Why? Select the correct answer below: O It is likely that propylene glycol would be a competitive inhibitor because it easily binds to glycerol. O It is likely that propylene glycol would be a competitive inhibitor because it has...
12. Which enzyme catalyzes the reaction shown? Oo 9% a. succinyl-CoA synthetase b. succinate dehydrogenase c. pyruvate dehydrogenase d、a-ketoglutarate dehydrogenase 13. Which of the reactions of the citric acid cycle requires FAD as a coenzyme? a. the conversion of isocitrate to a-ketoglutarate b. the conversion of citrate to isocitrate c. the conversion of succinate to fumarate d. the conversion of malate to oxaloacetate 14. Another name for Complex I in the electron transport chain is a. cytochrome c oxidase. b....
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...
35.
Intact mitochondrial were isolated, carefully washed with pH 7.0
buffer, and used to measure the P/O ratio for α-ketoglutarate
35. Intact mitochondrial were isolated, carefully washed with pH 7.0 buffer, and used to measure the P/O ratio for a-ketoglutarate. Included in your assay for the measurements were ADP, phosphate (Pi), NAD+, and malonate in an appropriate buffer. Assume that all the added compounds can get into the mitochondrial matrix and that all enzymes of the citric acid cycle are...
biochemistry
if you could please help me answer the following questions!
* 1. (5 pts) Which of the following is a catalytic mechanism utilize by enzymes? Multiple answers may be correct. Select all that are correct. 1. Acid-base a) acid-base catalysis d. metal-ion catalysis 12. Covalent b covalent catalysis e. transition state binding c. heterogeneou 3. Metalion . Proximin onentation, E 2. 76 pts) What is the "steady-state" assumption in the derivation of the s.clectrosch? Tynsin Michaelis-Menten equation? Sie binding...
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...
?
3. See Chemistry Around Us 20.3 Cases of antfreeze poisoning are often treated by using a compettive inhibitor of the enzyme alcohol dehydrogenase a Two compounds that are likely to react with this enzyme are Models and b Fill in the boxes in the diagram with the numbers of the correct models Bubstrace (poson) Acchol Denydrogenase Nomal Product reatment) c. Describe the relationship between Models 3 1 and 3 3 3 2 and 33 d. Increasing the concentration of...
Compare competitive and noncompetitive inhibition Question Suppose that glycerol (CH,OHCH(OH)CH,OH) is a substrate in an enzyme-catalyzed biochemical reaction and propylene glycol (CH OHCH(OH)CHZ) is an inhibitor of the reaction. Would you expect propylene glycol to be a competitive or noncompetitive inhibitor? Why? Select the correct answer below: O It is likely that propylene glycol would be a competitive inhibitor because it easily binds to glycerol. O It is likely that propylene glycol would be a competitive inhibitor because it has...
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