12 public questions tagged with this topic.
Competitive inhibitors compete with the substrate by binding to the enzyme's active site. Non-competitive inhibitors bind elsewhere, and some inhibitors are reversible.
Ref: NCERT Class 11 Biology Chapter 9: Biomolecules Enzyme Action and Factors Affecting Enzyme Activity
Competitive inhibitors compete with the substrate by binding to the active site. Non-competitive inhibitors bind elsewhere, and some inhibitors are reversible.
Ref: NCERT Class 11 Biology Chapter 9: Biomolecules Enzyme Action and Factors Affecting Enzyme Activity
Increasing Km but keeping Vmax unchanged is the scientifically accurate answer to this question. Within the study of Enzyme Kinetics, this concept is well-established through extensive research and is documented in standard scientific literature. The specific properties, mechanisms, or characteristics of Increasing Km but keeping Vmax unchanged directly address what is being asked. Among the other options, Decreasing Km but keeping Vmax unchanged, Decreasing both Km and Vmax, and Increasing both Km and Vmax do not correctly answer this question because they either refer to different concepts,
Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 6
Km only correctly describes the effect or change asked about in this question. In Enzyme Kinetics, understanding cause-and-effect relationships is essential for predicting biological outcomes. Km only occurs because of specific molecular interactions, thermodynamic principles, or regulatory mechanisms that govern this biological process. The other options (Vmax only, Both Km and Vmax, and Neither Km nor Vmax) describe either opposite effects, effects that occur under different conditions, or changes associated with unrelated processes.
Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 6
Vmax is the correct choice because it does not accurately describe or belong to the category addressed in this question. In the context of Km and Vmax calculation, the other options (Km, Kcat, and Turnover number) are all valid and well-established concepts. Vmax is either unrelated to the topic, describes a different biological process, or represents a common misconception. Questions framed as 'which is NOT' require students to identify the exception among otherwise correct statements, demanding comprehensive knowledge of the topic rather than recognition of a single fact.
Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 6
A competitive inhibitor that targets bacterial metabolism is the accurate response regarding enzymatic activity or regulation described in this question. Enzymes are biological catalysts that accelerate reactions by lowering activation energy through specific substrate binding and transition state stabilization. In the context of Enzyme Inhibition, A competitive inhibitor that targets bacterial metabolism plays a specific catalytic or regulatory role determined by its active site configuration and mechanism of action. The other options (A non-competitive inhibitor of glycolysis, A suicide inhi
Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 6
Allosteric is the correct choice because it does not accurately describe or belong to the category addressed in this question. In the context of Enzyme Inhibition, the other options (Competitive, Uncompetitive, and Mixed) are all valid and well-established concepts. Allosteric is either unrelated to the topic, describes a different biological process, or represents a common misconception. Questions framed as 'which is NOT' require students to identify the exception among otherwise correct statements, demanding comprehensive knowledge of the topic rather than recognition of a single fact.
Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 6
V = (Vmax [S]) / (α Km + [S]) is the accurate response regarding enzymatic activity or regulation described in this question. Enzymes are biological catalysts that accelerate reactions by lowering activation energy through specific substrate binding and transition state stabilization. In the context of Enzyme Inhibition, V = (Vmax [S]) / (α Km + [S]) plays a specific catalytic or regulatory role determined by its active site configuration and mechanism of action. The other options (V = (Vmax [S]) / (Km + [S]), V = (Vmax [S]) / (Km/α + [S]), and V = (α Vmax [S]) / (Km + [S])) are either dif
Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 6
Increases Km but Vmax remains unchanged correctly describes the effect or change asked about in this question. In Enzyme Inhibition, understanding cause-and-effect relationships is essential for predicting biological outcomes. Increases Km but Vmax remains unchanged occurs because of specific molecular interactions, thermodynamic principles, or regulatory mechanisms that govern this biological process. The other options (Decreases both Km and Vmax, Increases Km and decreases Vmax, and No change in Km or Vmax) describe either opposite effects, effects that occur under different conditions, or c
Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 6
It can be reversed by increasing substrate concentration is the correct choice because it does not accurately describe or belong to the category addressed in this question. In the context of Enzyme Inhibition, the other options (Km remains constant, Vmax decreases, and The inhibitor binds to both enzyme and enzyme-substrate complex) are all valid and well-established concepts. It can be reversed by increasing substrate concentration is either unrelated to the topic, describes a different biological process, or represents a common misconception. Questions framed as 'which is NOT' require studen
Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 6
Increase in slope and constant y-intercept is the accurate response regarding enzymatic activity or regulation described in this question. Enzymes are biological catalysts that accelerate reactions by lowering activation energy through specific substrate binding and transition state stabilization. In the context of Enzyme Inhibition, Increase in slope and constant y-intercept plays a specific catalytic or regulatory role determined by its active site configuration and mechanism of action. The other options (Increase in y-intercept and constant slope, Decrease in slope and decrease in y-interce
Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 6
The active site of an enzyme is the accurate response regarding enzymatic activity or regulation described in this question. Enzymes are biological catalysts that accelerate reactions by lowering activation energy through specific substrate binding and transition state stabilization. In the context of Enzyme Inhibition, The active site of an enzyme plays a specific catalytic or regulatory role determined by its active site configuration and mechanism of action. The other options (The enzyme-substrate complex, The allosteric site of an enzyme, and Both the active and allosteric sites) are eithe
Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 6
