dentify 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 pH
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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 pH
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Solved in 2 steps
- 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 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 reactionBased on the image attached, what can be concluded from the graph of enzyme activity? A. No enzyme activity recorded at pH 5.0 B. Optimum pH for enzyme activity between pH 5.0 to 5.8 C. The optimum pH for the enzyme is 6.6 D. Decreasing of enzyme activity due to inhibitor
- 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 following statements is/are true about enzyme-catalyzed reactions? A. The reaction is faster than the same reaction. B. The free energy change of the reaction is opposite from the reaction in the absence of the enzymes. C. The reaction always goes in the direction toward chemical equilibrium. D. A and B only E. A, B and CWhich of the following statement about the enzyme thermodynamics is TRUE? a. Enzymes increase the activation barrier (∆G cat) of the products b. Enzymes decrease the activation barrier (∆G cat) of the products c. Enzymes decrease the free energy (∆G) of the products d. Enzymes decrease the free energy (∆G) of the reactants e. Enzymes increase the activation barrier (∆G cat) of the reactants
- the type of enzyme inhibition in which covalent bulky adduct prevents catalysis is ? a) uncompetitive b) reversible c) noncompetitive d) competitive e) IrreversibleCharacterization of enzyme activity does not allow us to: a. determine how different variables affect the enzyme's ability to function b. determine the molecular composition of the enzyme c. determine the optimal environment for an enzyme to function d. determine the effect of inhibitors on the enzymeChoose the best description of an enzyme: (a) It allows a chemical reaction to proceed extremely fast. (b) It increases the rate at which a chemical reaction approaches equilibrium relative to its uncatalyzed rate. (c) It makes a reaction thermodynamically favorable.
- Which of the following statement regarding enzymes is false? a.) they speed up reaction rates b.) they work within narrow temperature and pH ranges c.) The active site binds the substarate d.) They are consumed in the reactions they catalyzeExplain the difference in progress between a chemical reaction involving an enzyme and one not involving an enzyme. What would the differences be? – be sure to discuss activation energy and what it means Explain the relationship between substrate concentration and enzyme activity. Be sure to discuss saturationWhich of the following is TRUE about the enzymatic catalysis of a chemical reaction? A. It increases the energy of the transition state B. It decreases the free energy ∆G so that a reaction can proceed spontaneously C. It decreases the energy of the transition state D. It increases the forward and reverse rates