Which of the following statements inaccurately describes glutamate dehydrogenase? Glutamate dehydrogenase uses either NAD+ or NADP+ in a redox reaction Glutamate dehydrogenase catalyzes an oxidative deamination reaction Glutamate dehydrogenase equilibrium lies with the reductive amination of glutamate Glutamate dehydrogenase utilizes hydrolysis to release ammonium from an imine intermediate
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- Some cofactors that participate in the reactions of the citric acid cycle are indicated by letters. Identify the position of positions of NADH in the cycle by selecting the appropriate letter or letters designating its position(s) in the cycle diagram. COA CH, HO--Co, CH čo, 8 CO но-сн CH HC -Co, CO HO-CH LA Citric acid cycle H,0 co, -B COA | 4 Co, čo D.Which of the following is NOT a regulatory mechanism for catabolism and anabolism? Phosphorylation of enzymes in glycogenesis and glycogenolysis Modulation of enzymes in glycolysis and the aerobic stage of cellular respiration by intermediates and products of the pathway Conversion of pyruvate to alanine Differences in enzymatic activities in response to variations in the concentration of substrates Activation of gluconeogenesisAlpha-ketoglutarate dehydrogenase exhibits feedback inhibition by
- Which of the following statements is true for the shown reaction? Substrate level phosphorylation occurs during the reaction Phosphoryl transfer occurs during the reaction Both A and B Neither A nor BThis is a picture of the catalysis of alcohol by ADH with an inhibitor binding as an aldehyde analog. I have two questions. First, what would the enzyme be classified as and why? Also, what would the steps of this mechanism be?Alcohol dehydrogenase catalyzes the oxidation of an alcohol to the next highest state of oxidation, an aldehyde. How does this partially explain the toxicity of methanol?
- When regulating phosphofructokinase, why is there such extensive regulation of this reaction and enzymatic reactions, in general?What enzyme will not be used if the oxidative portion of the pentose phosphate pathway is operating to produce ribose 5-phosphate? Ribulose 5-phosphate isomerase 6-phosphoglucono-lactonase 6-phosphogluconate dehydrogenase TransaldolaseConsider the following reaction of the glycolysis pathway. Which statement is NOT true regarding this reaction? P + C-H NADH + H+ NAD+ C-0-P H-C-OH H-C-OH Glyceraldehyde- CH₂0-P 3-phosphate dehydrogenase CH₂0-P 1,3-Bisphosphoglycerate Glyceraldehyde-3- phosphate O A one-carbon compound (1C) is converted into a two-carbon compound (2C). O It requires a coenzyme. O It is a redox reaction catalyzed by the enzyme glyceraldehyde-3-phosphate dehydrogenase. O It is a phosphorylation reaction.