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6-25 For Umax 57(Kr+S) constant an enzyme that displays Michaelis-Menten kinetics, what is the reaction velocity, V (as a percentage of Vmax), observed at the following values? a) [S] = KM b) c) d) e) [S] = 0.5KM [S] = 0.1 KM [S] = 2KM = [S] 10KM Gener (liction)) Would you expect the structure of a competitive inhibitor of a given enzyme to be similar to that of its substrate?

6-25 For Umax 57(Kr+S) constant an enzyme that displays Michaelis-Menten kinetics, what is the reaction velocity, V (as a percentage of Vmax), observed at the following values? a) [S] = KM b) c) d) e) [S] = 0.5KM [S] = 0.1 KM [S] = 2KM = [S] 10KM Gener (liction)) Would you expect the structure of a competitive inhibitor of a given enzyme to be similar to that of its substrate?

Biochemistry
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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**Title: Understanding Enzyme Kinetics and Competitive Inhibition** --- **Exploring Enzyme Kinetics: Michaelis-Menten Equation** *Question:* For an enzyme that displays Michaelis-Menten kinetics, what is the rate (v) as a percentage of Vmax observed at the following substrate concentrations [S]? *Given Substrate Concentrations:* a) \[ [S] = Km \] b) \[ [S] = 0.5Km \] c) \[ [S] = 0.1Km \] d) \[ [S] = 2Km \] e) \[ [S] = 10Km \] **Competitive Inhibition:** *Question:* Would you expect the structure of a competitive inhibitor of a given enzyme to be similar to that of its substrate? --- **Explanation:** This educational content explores the concept of enzyme kinetics using the Michaelis-Menten equation. Students are asked to consider how different substrate concentrations impact the rate of reaction expressed as a percentage of the maximum rate (Vmax). Additionally, the concept of competitive inhibition is examined, prompting students to consider how the structure of inhibitors relates to substrates. **Note:** No graphs or diagrams are included in the provided text.
Transcribed Image Text:**Title: Understanding Enzyme Kinetics and Competitive Inhibition** --- **Exploring Enzyme Kinetics: Michaelis-Menten Equation** *Question:* For an enzyme that displays Michaelis-Menten kinetics, what is the rate (v) as a percentage of Vmax observed at the following substrate concentrations [S]? *Given Substrate Concentrations:* a) \[ [S] = Km \] b) \[ [S] = 0.5Km \] c) \[ [S] = 0.1Km \] d) \[ [S] = 2Km \] e) \[ [S] = 10Km \] **Competitive Inhibition:** *Question:* Would you expect the structure of a competitive inhibitor of a given enzyme to be similar to that of its substrate? --- **Explanation:** This educational content explores the concept of enzyme kinetics using the Michaelis-Menten equation. Students are asked to consider how different substrate concentrations impact the rate of reaction expressed as a percentage of the maximum rate (Vmax). Additionally, the concept of competitive inhibition is examined, prompting students to consider how the structure of inhibitors relates to substrates. **Note:** No graphs or diagrams are included in the provided text.
Expert Solution
The Michaelis Menton equation

For a one-substrate enzyme-catalyzed reaction, the Michaelis-Menton equation shows the quantitative relationship between the initial velocity (vo), maximum velocity(vmax), the initial substrate concentration ([S]) and enzyme's affinity(Km).

Michaelis Menton equation -->  vo = Vmax · [S] / (Km + [S])

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