5. Which of the following must be true for an enzymatic reaction obeying the Michaelis-Menten equation...
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
4. Basic concepts of Michaelis-Menten kinetics. The Michaelis-Menten equation is expression of the relationship between the initial velocity, Vo, of an enzymatic reaction and substrate concentration, [S]. There are three conditions that are useful for simplifying the Michaelis-Menten equation: [S] <<Km; [S] = Km; [S] >> Km. Match each condition with the statement(s) that describe it. TV, Vmox[S] Vo =Vmax m . V Vo - Vmax [S] Km +[S] V. (um/min) max [S] (mm) (a) Doubling [S] will almost double...
1.5 1.9 2.0 2.1 22 2.3 24 25 26 2.7 28 3) (a) An enzyme is used to convert a substrate at a temperature of 25°C. The Michaelis constant of this reaction is 0.042 mol dm3. The velocity of the reaction is 2.45 x 104 mol dm s when the substrate concentration is 0.890 mol dm3. Find the maximum velocity of this reaction? hint: vk2Er +161 and vmax (b) Plot v - vs -[S] for a standard enzymatic reaction that...
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...
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...
(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 Michaelis-Menten equation models the hyperbolic relationship between [S] and the initial reaction rate (V0) for an enzyme catalyzed, single substrate reaction: E S ES E P. The model can be more readily understood when comparing three conditions: [S]Km. Match each statement with the condition that it describes. Note: \"Rate\" refers to initial velocity (V0) where steady state conditions are assumed; [Etotal] refers to the total enzyme concentration, and [Efree] refers to the concentration of free enzyme. categories: [S]<<Km, [S]=Km,...
The Michaelis-Menten equation models the hyperbolic relationship between [S) and the initial reaction rate V, for an enzyme-catalyzed, single-substrate reaction E+S ES E + P. The model can be more readily understood when comparing three conditions: [S] << Km, [S] = Km, and [S] >> K. Match each statement with the condition that it describes. Note that "rate" refers to initial velocity V where steady state conditions are assumed. (E l refers to the total enzyme concentration and [Erre refers...
The Michaelis-Menten equation models the hyperbolic relationship between [S] and the initial reaction rate V for an enzyme-catalyzed, single-substrate reaction E+S E S E+P. The model can be more readily understood when comparing three conditions: (S) <<K.. [S] = Km, and [S] >> Km. Match each statement with the condition that it describes. Note that "rate" refers to initial velocity V, where steady state conditions are assumed. Etotal) refers to the total enzyme concentration and Etree refers to the concentration...
9. Applying the Michaelis-Menten Equation I An enzyme catalyzes the reaction A = B. The enzyme is present at a con- centration of 2 nm, and the Vmax is 1.2 ums". The Km for substrate A is 10 um. Calculate the initial velocity of the reaction, Vo, when the substrate concentration is (a) 2 um, (b) 10 um, (C) 30 um.