Domanda del libro di testo
In humans, the antibiotic amoxicillin (a type of penicillin) is used to treat certain bacterial infections.
a. Does the antibiotic inhibit enzymes in humans?
746
views
Ch.16 Amino Acids, Proteins, and Enzymes
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- Ch.1 Chemistry in Our Lives19
- Ch.2 Chemistry and Measurements80
- Ch.3 Matter and Energy53
- Ch.4 Atoms and Elements58
- Ch.5 Nuclear Chemistry42
- Ch.6 Ionic and Molecular Compounds57
- Ch.7 Chemical Quantities and Reactions38
- Ch.8 Gases30
- Ch.9 Solutions50
- Ch.10 Acids and Bases and Equilibrium64
- Ch.11 Introduction to Organic Chemistry: Hydrocarbons77
- Ch.12 Alcohols, Thiols, Ethers, Aldehydes, and Ketones82
- Ch.13 Carbohydrates54
- Ch.14 Carboxylic Acids, Esters, Amines, and Amides91
- Ch.15 Lipids61
- Ch.16 Amino Acids, Proteins, and Enzymes84
- Ch.17 Nucleic Acids and Protein Synthesis86
- Ch.18 Metabolic Pathways and ATP Production73
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249Non è quello che usi tu?Cambia libro di testo
Capitolo 16, Problema 47d
Indicate whether each of the following describes a competitive or a noncompetitive enzyme inhibitor:
d. The structure of the inhibitor is not similar to the substrate.
Guida verificata passo dopo passo1
Understand the difference between competitive and noncompetitive enzyme inhibitors: Competitive inhibitors resemble the substrate and compete for the active site, while noncompetitive inhibitors bind to a different site on the enzyme and do not resemble the substrate.
Analyze the given statement: 'The structure of the inhibitor is not similar to the substrate.' This indicates that the inhibitor does not compete with the substrate for the active site.
Recall that noncompetitive inhibitors bind to an allosteric site (a site other than the active site) and alter the enzyme's activity without directly blocking the substrate binding.
Conclude that since the inhibitor's structure is not similar to the substrate, it is likely describing a noncompetitive inhibitor.
Summarize the reasoning: The lack of structural similarity to the substrate suggests that the inhibitor does not compete for the active site, which aligns with the characteristics of a noncompetitive inhibitor.
Risposta video verificata per un problema simile:
Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
1mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Competitive Inhibition
Competitive inhibition occurs when an inhibitor resembles the substrate and competes for binding to the active site of an enzyme. This type of inhibition can be overcome by increasing the concentration of the substrate, as the inhibitor and substrate vie for the same binding site. The presence of a competitive inhibitor increases the apparent Km (Michaelis constant) of the enzyme but does not affect the maximum reaction velocity (Vmax).
Video consigliato:
Percorso guidato
1:19
Enzyme Inhibition Concept 1
Noncompetitive Inhibition
Noncompetitive inhibition happens when an inhibitor binds to an enzyme at a site other than the active site, altering the enzyme's function regardless of substrate presence. This type of inhibition cannot be overcome by increasing substrate concentration, as the inhibitor affects the enzyme's activity directly. Noncompetitive inhibitors decrease the maximum reaction velocity (Vmax) without changing the Km.
Video consigliato:
Percorso guidato
1:19Enzyme Inhibition Concept 1
Enzyme Inhibition
Enzyme inhibition refers to the process by which a molecule decreases the activity of an enzyme, thereby reducing the rate of a biochemical reaction. Inhibitors can be classified as competitive or noncompetitive based on their binding characteristics and effects on enzyme kinetics. Understanding the type of inhibition is crucial for predicting how changes in substrate or inhibitor concentrations will affect enzyme activity.
Video consigliato:
Percorso guidato
1:19Enzyme Inhibition Concept 1
Pratica correlata
Domanda del libro di testo
Oxaloacetate is an inhibitor of succinate dehydrogenase.
a. Would you expect oxaloacetate to be a competitive or a noncompetitive inhibitor? Why?
696
views
Domanda del libro di testo
Refer to the graph in problem 16.45 to determine if the reaction rate in each condition will be at the optimum rate or not.
<IMAGE>
a. trypsin, pH 5.0
792
views
Domanda del libro di testo
Indicate whether each of the following describes a competitive or a noncompetitive enzyme inhibitor:
a. The inhibitor has a structure similar to the substrate.
899
views
Domanda del libro di testo
Methanol and ethanol are oxidized by alcohol dehydrogenase. In methanol poisoning, ethanol is given intravenously to prevent the formation of formaldehyde that has toxic effects.
b. Would ethanol compete for the active site or bind to a different site?
869
views
Domanda del libro di testo
The following graph shows the activity versus pH curves for pepsin, sucrase, and trypsin. Estimate the optimum pH for each.
<IMAGE>
797
views