You are working on an enzyme that obeys standard Michaelis-Menten kinetics. You have determinedthe Vmax to be 0.1 mol/sec and the Km to be 2.5 mM. What would the rate of the reaction be whenthe substrate concentration is 20 mM?0.09 MS-1O 0.133 Ms-1O 0.18 Ms ¹9 Ms-1O 0.018 Ms-10.2 MS-1

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Answered: You are working on an enzyme that obeys…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Similar questions

Use the Michaelis-Menten equation to complete the enzyme kinetic data set, whenKm is known to have a value of 1 mmol L−1 [S] (mmol L−1) Vo (μmol L−1 min−1) 0.5 50 1.0 2.0 3.0 10.0
Given the following information about an enzymatic reaction, calculate the initial velocity. Your numerical answer is assumed to have the units of nM sec-1. Vmax = 5 nM sec-1 KM = 1 mM [S] = 0.25 mM
Given the following set of kinetic data, what is the KM of the enzyme? Numerical answer, only (assuming the same units as seen in the table). [S] (micro M) vo (Micro mol/sec) 1 49 2 96 8 249 50 498 100 656 1000 778 5000 999
An enzyme is present at 100 nM (nanomolar) and has a Vmax value of 25 uM/s (micromolar/second). The Km for the substrate is 5.2 uM. What is the initial velocity (V0) at a substrate concentration of 15.2 uM? Report your answer to three significant figures in units of uM/s.
The following were obtained in a study of an enzyme known to follow Michaelis-Menten kinetics: Reaction Velocity (mmol/min) Substrate added (mmol/L) 217 0.8 325 2 433 4 488 6 647 20 652 1000 The Km for this enzyme is approximately _____________. (Round to the nearest integer)
For an enzyme kinetics experiment, a student prepared a reaction mixture by mixing 450 microliters of 0.75mM PNPP with 4.25ml of 0.2M Tris-HCl buffer. When he is ready to measure the absorbance, he added 0.3ml of Alkaline Phosphatase to the mixture and mixed thoroughly. What is the substrate concentration at the beginning of the reaction in mM ?
Use the Michaelis-Menten equation to complete the enzyme kinetic data set, when Km is known to have a value of 1 mmol L-1
A sample of hydrogen peroxide solution has a mass of 4.599 g. After reacting with the enzyme solution, the moles of oxygen are 0.00284 moles. What is the percent hydrogen peroxide in the solution?
An enzyme catalysed reaction has a Km of 8 mM and a Vmax of 13 nM.s-1. Use the Michaelis-Menten equation to calculate the reaction velocity when the substrate concentration is 18 mM.
Two solutions, 250.0 mL of 1.00 M CaCl2(aq) and 250.0 mL of 1.00 M K2SO4(aq), are combined, and the temperature decreased by 2.40 degrees C. Determine qrxn per mole of CaSO4(s) formed in the reaction. A) +12.0 kJ/mol B) -12.0 kJ/mol C) +6.00 kJ/mol D) -6.00 kJ/mol
The formation constants at 25°C for Fe(CN)4-6 and Fe(EDTA)2– are 1.00 x 1037 and 2.10 x 1014, respectively. Answer the questions below. 1) Calculate K under standard conditions for the reaction Fe(EDTA)2−(aq) + 6CN−(aq) ----> Fe(CN)4−6(aq) + EDTA4−(aq) 2) Calculate ΔG° for the reaction. (kJ/mol)
An enzyme is discovered that catalyzes the chemical reaction A team of motivated researchers sets out to study the enzyme, which they callhappyase. They find that the kcat for happyase is 600 s−1 and carry out several additional experiments.When [Et] = 20 nM and [SAD] = 40 μM, the reaction velocity, V0, is 9.6μM s−1. Calculate Km for the substrate SAD.

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