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PS#13 Oct 6 Questions

PS#13 Oct 6 Questions - D All of the above E None of the...

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BIOC 300 10/6/6 PS#13 1 What is the common strategy by which catalysis occurs? A) increasing the probability of product formation B) shifting the reaction equilibrium C) stabilization of transition state D) All of the above. E) None of the above. 2 Which of the following is true? A) Enzymes force reactions to proceed in only one direction. B) Enzymes alter the equilibrium of the reaction. C) Enzymes alter the standard free energy of the reaction. D) All of the above. E) None of the above. 3 The Gibbs free energy of activation is A) the difference between the substrate and the transition state. B) the difference between the substrate and the product. C) the difference between the product and the transition state. D) All of the above. E) None of the above. 4 The formula K' eq = 10 -∆ G °′ /1.36 indicates the relationship between A) the free energy and the equilibrium constant. B) the reaction equilibrium and the isomerization rate. C) the equilibrium constant and standard free energy.
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Unformatted text preview: D) All of the above. E) None of the above. 5 Enzymes accelerate the rate of a chemical reaction by __________________ the free energy of activation of the reaction. 6 The difference between the standard-state free energy, ΔGº, and the biochemical standard-state free energy is that ΔGº′ refers to the standard free-energy change at ________. 7 Most known enzymes are proteins; however, some ___________ molecules have been shown to possess catalytic activity. 8 Organic cofactors are referred to as __________________. 9 A reaction can occur spontaneously only if ΔG is __________________. 10 When ΔG for a system is zero, the system is at ______________________. 11 How is the substrate bound to the active site? 12 In an enzymatic reaction in a test tube, the reaction will eventually reach equilibrium. Why does this not happen in living organisms?...
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