Homework Answers
Option (b) seems correct for Michaelis Menten Kinetics i.e. enzyme substrate complex concentration remains steady state.
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c. 0.6 sec d. 1.67 sec 16. Which of the following about Michaelis-Menten enzyme kinetics is CORRECT? a. It assumes t...
An enzyme that follows Michaelis-Menten kinetics has a initial velocity of 300 nM/s at a substrate...
An enzyme that follows Michaelis-Menten kinetics has a initial velocity of 300 nM/s at a substrate concentration of 30 uM. The maximum velocity of 400 nM/sec. What is the Km for this enzyme in uM? (Give your answer as a number only. Type your response
7. a) In an enzyme catalyzed reaction which follows the Michaelis-Menten kinetics. The substrate ...
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...
4. Basic concepts of Michaelis-Menten kinetics. The Michaelis-Menten equation is expression of the relationship between the...
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...
Part A An enzyme that follows Michaelis-Menten kinetics has a KM value of 10.0 uM and...
Part A An enzyme that follows Michaelis-Menten kinetics has a KM value of 10.0 uM and a kcat value of 201 s-1. At an initial enzyme concentration of 0.0100 uM, the initial reaction velocity was found to be 1.07 x 10- uM/s. What was the initial concentration of the substrate, [S], used in the reaction ? Express your answer in micromolar to three significant figures. ► View Available Hint(s) PO ALO O O ? [S]; = MM UM
Which of the following is TRUE of reactions that follow Michaelis-Menten kinetics? At both low and...
Which of the following is TRUE of reactions that follow Michaelis-Menten kinetics? At both low and high substrate concentrations, rate is only dependent on total enzyme concentration. At high substrate concentrations, rate is only dependent on total enzyme concentration. At low concentrations of substrate, rate is only dependent on Vmax At both low and high substrate concentrations, rate is only dependent on substrate concentration. At low concentrations of substrate, rate is only dependent on kcat.
please answer a,b and c. 4. Consider when enzyme E binds to Substrate Sassuming Michaelis-Menten kinetics...
please answer a,b and c.
4. Consider when enzyme E binds to Substrate Sassuming Michaelis-Menten kinetics kz[E]. [S] R= [S] + km a) What is the rate when [S] = km? b) What is the maximum rate (which is achieved when [S] >>> km) c) The rate of the reaction vs substrate concentration is given by the graph below. Indicate the VALUE of half of the maximum rate (Romex/2) and ku using the equations you derived in part a and...
Please answer all of those questions 7. Which of the followings is correct about the mechanisms of enzymatic reactions? General acid-base mechanism b. Metal elements mediated mechanism a. Covalent bo...
Please answer all of those questions
7. Which of the followings is correct about the mechanisms of enzymatic reactions? General acid-base mechanism b. Metal elements mediated mechanism a. Covalent bonding mediated mechanism d. All above c. e. None a bove Which of the followings is correct about the meaning of the constant (Km) of Michaelis-Menten equation of enzyme catalyzed reactions? a. The constant and Michaelis-Menten equation is applicable only to the stage of reaction immediately after mixing of substrate(s) with...
Which of the following is true about allosteric enyzmes? A) They typically catalyze the last reaction...
Which of the following is true about allosteric enyzmes? A) They typically catalyze the last reaction in a metabolic pathway since it is the critical step in the synthesis of the desired end product. B) They can have one subunit or several, depending on their catalytic needs. C) Their activity is often altered by a downstream product to form a feedback regulatory loop. D) They show a hyperbolic activity curve that increases with high levels of substrate. E) A and...
5. The rate of a simple enzyme reaction is given by the standard Michaelis-Menten equation. a....
5. The rate of a simple enzyme reaction is given by the standard Michaelis-Menten equation. a. If the Vmax = 354 umol/sec and the KM = 1.5 mm, at what substrate concentration is the rate is 177 umol/sec? b. Using MATLAB, plot a graph of rate versus substrate concentration using the enzyme parameters in part (a) for (S] = 0.5 to 30.0 mM in increments of 0.5 mM). Don't forget to include units on your axes. Include a copy of...
The key factor that controls the initial rate of an enzyme catalysed reaction (Vo) is the...
The key factor that controls the initial rate of an enzyme catalysed reaction (Vo) is the concentration of the substrate of the reaction ([S]). In Damon's Michaelis-Menten experiment, the highest concentration of substrate used was 500 UM. What do you think will happen to the reaction velocity if higher concentrations of substrate were used? Select one: a. Vo will reach a plateau at higher (S) values O b. Vo will increase exponentially as (S) is increased O c. Vo will...
An enzyme that follows Michaelis-Menten kinetics has a initial velocity of 300 nM/s at a substrate concentration of 30 uM. The maximum velocity of 400 nM/sec. What is the Km for this enzyme in uM? (Give your answer as a number only. Type your response
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...
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...
Part A An enzyme that follows Michaelis-Menten kinetics has a KM value of 10.0 uM and a kcat value of 201 s-1. At an initial enzyme concentration of 0.0100 uM, the initial reaction velocity was found to be 1.07 x 10- uM/s. What was the initial concentration of the substrate, [S], used in the reaction ? Express your answer in micromolar to three significant figures. ► View Available Hint(s) PO ALO O O ? [S]; = MM UM
please answer a,b and c.
4. Consider when enzyme E binds to Substrate Sassuming Michaelis-Menten kinetics kz[E]. [S] R= [S] + km a) What is the rate when [S] = km? b) What is the maximum rate (which is achieved when [S] >>> km) c) The rate of the reaction vs substrate concentration is given by the graph below. Indicate the VALUE of half of the maximum rate (Romex/2) and ku using the equations you derived in part a and...
Please answer all of those questions
7. Which of the followings is correct about the mechanisms of enzymatic reactions? General acid-base mechanism b. Metal elements mediated mechanism a. Covalent bonding mediated mechanism d. All above c. e. None a bove Which of the followings is correct about the meaning of the constant (Km) of Michaelis-Menten equation of enzyme catalyzed reactions? a. The constant and Michaelis-Menten equation is applicable only to the stage of reaction immediately after mixing of substrate(s) with...
Which of the following is true about allosteric enyzmes? A) They typically catalyze the last reaction in a metabolic pathway since it is the critical step in the synthesis of the desired end product. B) They can have one subunit or several, depending on their catalytic needs. C) Their activity is often altered by a downstream product to form a feedback regulatory loop. D) They show a hyperbolic activity curve that increases with high levels of substrate. E) A and...
5. The rate of a simple enzyme reaction is given by the standard Michaelis-Menten equation. a. If the Vmax = 354 umol/sec and the KM = 1.5 mm, at what substrate concentration is the rate is 177 umol/sec? b. Using MATLAB, plot a graph of rate versus substrate concentration using the enzyme parameters in part (a) for (S] = 0.5 to 30.0 mM in increments of 0.5 mM). Don't forget to include units on your axes. Include a copy of...
The key factor that controls the initial rate of an enzyme catalysed reaction (Vo) is the concentration of the substrate of the reaction ([S]). In Damon's Michaelis-Menten experiment, the highest concentration of substrate used was 500 UM. What do you think will happen to the reaction velocity if higher concentrations of substrate were used? Select one: a. Vo will reach a plateau at higher (S) values O b. Vo will increase exponentially as (S) is increased O c. Vo will...
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