A. The temperature optimum of the reaction is 0°C. B. The reaction proceeds until the enzyme concentration decreases. C. A component of the enzyme is transferred from A to B. D. None of the above.
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Biochemistry topic question:
An enzyme (A to B dehydrogenase) catalyzes the biochemical reaction A → B. Which of
the statements found in the attached image is true?
Please help . Thank you
Step by step
Solved in 2 steps
- Which of the following will happen if the concentration of an enzyme increases for a given substrate?? a. the reaction rate increases similarly b. the rate of the reaction decreases to a point. c. there is no change in the reaction. d. the turnover number decreases at the same rate that the enzyme concentration increases. e. the reaction stops.Identify the conditions that may affect enzyme activity in a reaction. SELECT ALL THAT APPLY A. Increasing Temperature B. Decreasing Substrate C. Lack of coenzyme D. Decreasing pHWhich of the following statements is false? a. A reaction may not occur at a detectable rate even though it has a favorable equilibrium. b. After a reaction, the enzyme involved becomes available to catalyze the reaction again. c. For S → P, a catalyst shifts the reaction equilibrium to the right. d. Lowering the temperature of a reaction will lower the reaction rate. e. Substrate binds to an enzyme's active site.
- Match the following terms with the best definition. Enzyme Product Substrate Active Site A. A macromolecule serving as a catalyst. B. A material resulting from a chemical reaction. C. The reactant on which an enzyme works. D. Location on an enzyme where the reaction is catalyzed.Which of the following is a primary function of the active site of an enzyme? a. It binds allosteric regulators of the enzyme. b. It binds noncompetitive inhibitors of the enzyme. c. It catalyzes the reaction associated with the enzyme. d. It is activated by the presence of the end product of the metabolic pathway in which the enzyme is involved. Clear my choice Question 2 Not yet answered Points out of 2.00 Flag question Question text Which of the following statement about the mass spectrometry is true? a. Large amount of protein sample is needed for mass spectrum, and thus it is very expensive. b. It is a powerful method to determine the 3-dimensional structure of proteins. c. It can be sued for protein location in a living cell. d. It can be used to measure the molecular weight of proteins. e. It can be used to determine the stability of a protein structure in solution. Clear my choice…An enzyme has the ability to catalyze reactions of several unrelated compounds. The mechanism of how this enzyme operates is best explained by a. the lock-and-key theory b. the induced-fit theory c. the enzyme-substrate complex d. the efficiency of the enzyme
- Which of the following accurately describes how an enzyme functions? a. reduces the energy content of the products b. allows for the exothermic reaction of materials that are usually endothermic c. changes the reaction mechanism effectively reducing the activation energy d. shifts the equilibrium for the reactionWhich of the following statements about the Michaelis Menten constant (Km) is correct......A. can be determined by plotting the data v/[S] against 1/[S] B. A large Km indicates a low affinity between the enzyme and the substrate C. A large Km means that a large concentration of substrate is needed for the enzyme to work D. is a measure of the affinity of enzymes for proteins, minerals and vitamins E. Small Km means that a large concentration of substrate is needed for the enzyme to workWhich of the following is incorrect about the rate of an enzyme-catalyzed reaction? a. It does not change when changing [enzyme] The more enzyme present, the faster the reaction b. c. None; all the other choices are correct Od. It will double, if [enzyme] is doubled
- Which of the following statements concerning enzymes is TRUE? a. Enzymes can increase the equilibrium constant of a reaction by 1000-fold. b. The activity of many enzymes can be regulated. c. Many enzymes are consumed in the reactions they catalyze. d. The rate of enzymatic catalysis is independent of pH.Which of the followingdescribe superior properties of enzymes (biological catalysts) over traditional chemical catalysts? a. They are mostly and generally operative under mild temperature, pressure, and pH conditions b. They are regulated only by substrate concentration c. They do not effect the reaction equilibrium, but lower the reaction's activation energy d. They are recycled at the end of the reaction Choose all that applySome enzymes function to breakdown harmful compounds that if allowed to accumulate could cause death. Below is a plot of the velocity of enzyme catalysis as a function of substrate concentration. Which one of the curves shown here is most likely for an enzyme that catalyses the breakdown of a toxic compound? A. A B. B C. C D. D