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The hydration of CO2, CO2 + H2O ? HCO3 - + H+, is catalyzed by the enzyme carbonic anhydrase. The steady-state kinetics of the forward (hydration) and reverse (dehydration) reactions at pH 7.1, 0.5°C, and 2 mM phosphate buffer was studied using bovine carbonic anhydrase. Some typical results for an enzyme concentration of 2.3 nM are Hydration Dehydration 1/v c(CO2) 1/v HCO3 - 36 · 103 1.25 95 · 103 2 20 · 103 2.5 45 · 103 5 12 · 103 5 29 · 103 10 6 · 103 20 24 · 103 15 Make suitable plots of data and determine the Michaelis constant KM and the rate constant k2 for the decomposition of the enzyme-substrate complex to form product for a. The hydration reaction. b. The dehydration reaction. c. From your results, calculate the equilibrium constant for the reaction CO2 + H2O ? HCO3 - + H+ (Hint: Start by writing an equation that defines the equilibrium condition in terms of the Michaelis-Menten formulation of this reaction. Note that the kinetics was measured at pH 7.1.)
Description of Chemical Reactions, Why when heating and cooling three different separate substances in open containers does the mass change in two of them (one loss mass; the other gained mass) but stays the same in the third when it is known that..
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customers complain that the plants they buy look "different" when they get them home. The electric bill to run the store is excessive.
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