7. What assumptions do we make in deriving Michaelis-Menten equation and what combination of elementary constants and/or concentrations make these assumptions invalid?
7. What assumptions do we make in deriving Michaelis-Menten equation and what combination of elementary constants...
(5) The Michaelis-Menten equation describes the following simplistic pathway Km (a) State each of the assumptions on which the Michaelis-Menten equation is based. (b) Derive the rate law for this process
The following is the process of deriving the Michaelis-Menten
equation. What is a,b,c?
[E] – [E]:- (ES) Now let (c), so that [s] =[s); With this assumption, and either of the previous two (E)=- [ES])[S] = Ky [ES] (Kx + [S])[ES] - [E] [S] E+S ES E + P Vi k[ES] Two alternative assumptions: (1) (a) k[E][S] = k., [ES] (2) (b) kj [E][S] = (k.1 + k) [ES] Under assumption (1), V. - K LEIS Under assumption (2), V....
The Michaelis-Menten equation is often used to describe the kinetic characteristics of an enzyme-catalyzed reaction. S Where v is the velocity or rate, Vmax is the maximum velocity, Km is the +IST Michaelis- Menten constant, and I5 s the substrate concentration. K + S v (uM/min) a) A graph of the Michaelis-Menten equation is a plot of a reaction's initial velocity (Vo) at different substrate concentrations ([S]) 300 Vmax 250 1/2 Vmax First, move the line labeled "Vmax to a...
4. Km, the Michaelis-Menten constant is a composite of three rate constants. What are the three rate constants (in proper units)? What are the units of Km If enzyme A has a Km of ImM and enzyme B, a Km of 2 mM for the same substrate, which one is more efficient?
The relation between Reaction Velocity and Substrate Concentration: Michaelis-Menten Equation a) At what substrate concentration would an enzyme with a kcat of 30.0 s-1 and a Km of 0.0050 M operate at one-quarter of its maximum rate? b) Determine the fraction of Vmax that would be obtained at the following substrate concentrations: [S]=Km/2, [S]=2Km, [S]=10Km
1. Show, using the Michaelis-Menten equation, that when [S] >>> Km, vo = Vmax. Show, using the M-M equation that when [S] <<<Km, vo =[S][Et]kcat/Km. 2. What is Vmax? Provide both a mathematical and written description of Vmax? How can Vmax be experimentally altered? How can we use Vmax to determine the turnover number (kcat) of an enzyme-catalyzed reaction? What is the major challenge of determining Vmax from an Michaelis-Menten plot?
(I need help with part C, Drawing the expected Michaelis-Menten plot; Do NOT draw the Lineweaver-Burk plot. thanks!) 1. Michaelis-Menten kinetics- use the M-M equation to answer the following: a. An enzyme (5 µM) has a Vmax of 450 mM/min. What is kcat? b. When the substrate concentration is 50 mM, the initial velocity (V0) was measured to be 375 mM/min. Under the conditions described above, calculate the KM. c. Draw the expected Michaelis-Menten plot (label your axes and include...
michaelis menten and kinetics help
2. A few years after Michaelis Menten published their work Briggs and Haldane came along and expanded it using the steady state assumption. i) Based on kinetic scheme 2 how many different ways can ES be produced? i) Using the rate constants in kinetic Scheme 2 at what rate is the ES complex being produced? sed eci iv) Using the rate constants in kinetic Scheme 2 at what rate is the ES complex being destroyed?...
7. a) In an enzyme catalyzed reaction which follows the Michaelis-Menten kinetics. The substrate concentration (Km, Michaelis constant) needed to reach 50% of the maximum reaction velocity (Vmax) is 20 μΜ. What substrate concentration is required to obtain at least 75% of the maximum reaction velocity? Show the work to get full points. (5 points) b) You want to load 10 μg of protein in 15 μL into one of the 10% polyacrylamide gel well. The protein needs to be...
(a) What assumptions, approximation, or generalization do we make about peanut oil for the the purposes of estimating the calorie content of nut? (b) Briefy describe the sources of experimental error when burning a peanut and then using a calorimeter to estimate the amount of energy released.