The enzyme urease increases the rate of urea hydrolysis at pH 8.0 and 20 °C by a factor of 1014.Suppose that a given quantity of urease can completely hydrolyze a given quantity of urea in 19 minutes at pH 8.0 and 20 °C.How long would it take for this amount of urea to be hydrolyzed in the absence of urease at the same temperature and pH insterile conditions? Include two significant figures in your answer.timeuncatalyzedyears* TOOLSx10

Given that : At pH 8.0 and 20°C, the enzyme urease increases the rate of urea hydrolysis by a factor…

Answered: The enzyme urease increases the rate of…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter11: Chemical Kinetics: Rates Of Reactions

Section: Chapter Questions

Problem 83QRT

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Similar questions

List two ways that enzyme catalysis of a reaction is superior to normal conditions.
Describe the difference between graphs showing temperature versus reaction rate for an enzyme-catalyzed reaction and an uncatalyzed reaction.
Glycolysis is the process by which glucose is metabolized to lactic acid according to the equation C6H12O6(aq)2C3H6O3(aq) G=198 kJ at pH 7.0 and 25°C Glycolysis is the source of energy in human red blood cells. In these cells, the concentration of glucose is 5.0103 M, while that of lactic acid is 2.9103 M. Calculate AG for glycolysis in human blood cells under these conditions. Use the equation G=G+RT In Q, where Q is the concentration quotient, analogous to K.
Write the chemical equilibrium and expression for the equilibrium constants for the ionization of (a) tartaric acid. (b) malic acid.
Enzymes are specific to their substrates. How is this important?
Enzymes catalysts that increase the rates of biochemical reactions. are True False
Our body obtains energy from the combustion of glucose. During this process, glycerate is transformed first into pyruvate. This reaction has an activation energy close to 44 kJ. Estimate how many times faster this reaction is when someone has a high fever close to 106 F (41 oC) compared to its rate at normal body temperature (98.6 F; 37 oC). Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a b с d 31% faster 11% faster 24% faster 259% faster Your answer
When the terminal phosphate is cleaved from the ADP molecule, the products are adenosine diphosphate and inorganic phosphate: ATP + H2O ––> ADP + Pi where Pi stands for the various forms of phosphate that exist at the pH of the particular solution. If the total concentration of Pi is 2.5 x 10–2 M, what are the concentrations of the predominant forms of phosphate that exist at pH 7.4?
The hydrolysis of pyrophosphate to orthophosphate drives biosynthetic reactions such as DNA synthesis. In Escherichia coli, a pyrophosphatase catalyzes this hydrolytic reaction. The pyrophosphatase has a mass of 120 kDa and consists of six identical subunits. A unit of activity for this enzyme, U, is the amount of enzyme that hydrolyzes 10 umol of pyrophosphate in 15 minutes. The purified enzyme has a Vnax of 2800 U per milligram of enzyme. When (S] >> KM, how many micromoles of substrate can 1 mg of enzyme hydrolyze per second? Vnax = umol -s. mg- If cach enzyme subunit has one active site, how many micromoles of active sites, or (E]r, are there in 1 mg of enzyme? (Er = umol - mg-
Compare the lock-and-key and induced-fit models for substrate binding to an enzyme.
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Ammonia must be eliminated from wastewater before it can be reused, recycled, or discharged. Describe the three major steps that are used to convert harmful ammonia into a harmless derivative. Your answer must be specific and include any appropriate chemical formulas or names of chemical or biological reagents. Mention, when appropriate, the toxicity of any of the components or how their production can get in the way of efficiently eliminating ammonia from wastewater.

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