Biochemistry
Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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Two enzyme-catalyzed reactions, \( R_A \) (red) and \( R_B \) (blue), have kinetic profiles shown below. Report which reaction has the higher maximal rate and which reaction has the smaller \( K_m \).

**Graph Explanation:**

The graph is a Lineweaver-Burk plot, showing the double reciprocal of the Michaelis-Menten equation. The y-axis is labeled \( \frac{1}{v} \) (inverse of reaction velocity), and the x-axis is labeled \( \frac{1}{[S]} \) (inverse of substrate concentration).

- Two linear lines are plotted: one in red labeled \( A \), and one in blue labeled \( B \).
- Line \( A \) in red represents the reaction \( R_A \).
- Line \( B \) in blue represents the reaction \( R_B \).
- The slope of each line represents the \( K_m/V_{max} \), the y-intercept represents \( 1/V_{max} \), and the x-intercept represents \( -1/K_m \).

**Interactive Options:**

- Higher \( V_{max} \) [ Select ]
- Lower \( K_m \) [ Select ]
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Transcribed Image Text:Two enzyme-catalyzed reactions, \( R_A \) (red) and \( R_B \) (blue), have kinetic profiles shown below. Report which reaction has the higher maximal rate and which reaction has the smaller \( K_m \). **Graph Explanation:** The graph is a Lineweaver-Burk plot, showing the double reciprocal of the Michaelis-Menten equation. The y-axis is labeled \( \frac{1}{v} \) (inverse of reaction velocity), and the x-axis is labeled \( \frac{1}{[S]} \) (inverse of substrate concentration). - Two linear lines are plotted: one in red labeled \( A \), and one in blue labeled \( B \). - Line \( A \) in red represents the reaction \( R_A \). - Line \( B \) in blue represents the reaction \( R_B \). - The slope of each line represents the \( K_m/V_{max} \), the y-intercept represents \( 1/V_{max} \), and the x-intercept represents \( -1/K_m \). **Interactive Options:** - Higher \( V_{max} \) [ Select ] - Lower \( K_m \) [ Select ]
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