Name the enzyme that catalyzes the reaction shown in the figure. -Glu-Cys-Gly Glu -Cys- -Gly + NADPH + H+ pyruvate kinase isozyme glutathione reductase cytochrome c peroxidase glutathione peroxidase glucose 6-phosphate dehydrogenase 2 y-Glu-Cys-Gly SH + NADP+
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- Which of the following glycolytic enzymes catalyzes the conversion of fructose-1,6-bisphosphate into the two product molecules dihydroxyacetone phosphate, and glyceraldehyde-3-phosphate? phosphoglycerate kinase pyruvate kinase malate dehydrogenase aldolase phosphofructokinaseSelect the following enzymes that utilize a mechanism where ATP serves as the phosphate donor. Select ALL that apply: a) glyceraldehyde 3 phosphate dehydrogenase b) hexokinase c) aldolase class 1 d) PFK e) phosphoglucoisomeraseWhich of the following catalyzes a step that does NOT produce CO2? Group of answer choices alpha-ketoglutarate dehydrogenase complex malate dehydrogenase pyruvate dehydrogenase complex isocitrate dehydrogenase Citrate synthase is regulated by... Group of answer choices Concentrations of substrate and products Fructose-2,6-Bisphosphate Covalent modification Allosteric regulation by the levels of NADDH
- CHOOSE THE CORRECT LETTER 1.Which of the following enzymes need ATP as a substrate in the reaction?A.phosphoglycerate kinaseB. phosphofructokinaseC. pyruvate kinaseD.glyceraldehyde-3-phosphate dehydrogenaseFructose-2,6-bisphosphate is an activator of and an inhibitor of O phosphofructokinase; hexokinase O fructose bisphosphatase; phosphofructokinase O phosphofructokinase; fructose bisphosphatase O glucose-6-phosphatase; pyruvate kinase O pyruvate kinase; phosphoenolpyruvate carboxykinaseWhat is the function of glyceraldehyde 3-phosphate dehydrogenase? catalyzes the transfer of a phosphoryl group from ATP to an acceptor oxidation of the alcohol to an aldehyde dehydration and dephosphorylation of GAP hydrolysis of GAP oxidation by NAD+ and formation of acyl-phosphate
- The glycolytic enzyme pyruvate kinase catalyzes the conversion of: 1,3-bisphosphoglycerate into 3-phosphoglycerate (producing ATP) glyceraldehyde-3-phosphate into 1,3-bisphosphoglycerate (producing NADH) phosphoenolpyruvate into pyruvate (producing ATP) fructose-6-phosphate into fructose-1,6-bisphosphate (consuming ATP) glucose into glucose-6-phosphate (consuming ATP)alpha-ketoglutarate dehydrogenase will do which of the following: Select one: a. Pyruvate is decarboxylated to become acetyl-CoA producing NADH and Carbon dioxide b. Succinate is oxidized to become fumarate forming FADH2 c. Succinyl-CoA becomes Succinate and forms one ATP molecule and Coenzyme A-SH d. Oxaloacetate combines with the acetyl from acetyl-CoA to produce Citric acid(citrate) e. Malate is oxidized to become oxaloacetate forming NADH f. Isocitrate and then decarboxylated and oxidized to produce alpha-ketoglutarate, Carbon dioxide and NADH g. Citrate is rearranged to become Isocitrate h. Fumarate is combined with water to become Malate i. alpha-ketoglutarate is oxidized and decarboxylated to produce Succinyl-CoA, Carbon dioxide and NADHMatch the coenzymes and/or substrates with their corresponding glycolytic enzymes. Note that an enzyme can match with more than one coenzyme or substrate in the list. ATP NAD+ Dihydroxyacetone phosphate A. Glucose 1-dehydrogenase B. Phosphofructokinase-1 C. Glyceraldehyde 3-phosphate dehydrogenase D. ATPase E. Triose phosphate isomerase
- Select the following enzymes that utilize a mechanism where an enediol intermediate is formed. Check all that apply: a)phosphoglucoisomerase b)triose phosphate isomerase c)aldolase d) glyceraldehyde 3-P dehydrogenase e) hexokinaseWhich reaction is irreversible? oxidized glutathione + NADPH + H+ → reduced glutathione + NADP+ ribulose 5-phosphate → ribose 5-phosphate glucose 6-phosphate + NADP+ → 6-phosphoglucono-δ-lactone + NADPH + H+ sedoheptulose 7-phosphate + glyceraldehyde 6-phosphate → fructose 6-phosphate + erythrose 4-phosphate ribulose 5-phosphate → xylulose 5-phosphateUsing the glycerol-3-phosphate shuttle, determine how many ATP can be produced from one mole of each of the following compounds on complete oxidation?a.) Mannoseb.) Dihydroxyacetone phosphatec.) Citrated.) Malatee.) Succinate