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What is the difference between a competitive inhibitor and an allosteric inhibitor in terms of their mechanisms of action on enzymes?

A competitive inhibitor competes with the substrate for the active site of an enzyme, blocking its function. An allosteric inhibitor binds to a different site on the enzyme, causing a conformational change that reduces the enzyme's activity.


What inhibitor has a structure that is so similar to the substrate that it can bond to the enzyme just like the substrate?

A competitive inhibitor has a structure that closely resembles the substrate, allowing it to bind to the enzyme's active site in a similar manner. This competition between the inhibitor and substrate for the active site directly affects the enzyme's ability to catalyze reactions.


What happens to the vmax when a competitive reversible inhibitor is added to an enzyme?

The Vmax of the enzyme will remain constant in the presence of a competitive reversible inhibitor. However, the apparent Km will increase as the inhibitor competes with the substrate for binding to the active site of the enzyme, leading to a decrease in enzyme-substrate affinity.


What is the difference between an allosteric inhibitor and a competitive inhibitor in terms of their mechanisms of action on enzyme activity?

An allosteric inhibitor binds to a site on the enzyme that is separate from the active site, causing a change in the enzyme's shape and reducing its activity. A competitive inhibitor, on the other hand, competes with the substrate for binding to the active site of the enzyme, blocking its function.


What is the relationship between a competitive inhibitor and the Michaelis-Menten graph?

A competitive inhibitor affects the Michaelis-Menten graph by increasing the apparent Km value without changing the Vmax. This results in a higher substrate concentration needed to reach half of the maximum reaction rate.

Related Questions

Is penicillin a non-competitive inhibitor?

no


Is PTU a competitive inhibitor?

non-competitive


What inhibitor binds into the active site of an enzyme not allowing the subrtate to bind?

This would be a competitive inhibitor. It can be a structural analog of the substrate. This type of inhibition can be out competed by adding more substrate. A competitive inhibitor increases the Km of the enzyme.


Is water a competitive inhibitor?

Water is not a competitive inhibitor. Competitive inhibitors are molecules that bind to the active site of an enzyme, preventing the substrate from binding. Water does not compete with substrates for the active site of enzymes.


What is an example of a penicillin mixed with a beta-lactamase inhibitor?

The drug Augmentin, for example, contains a combination of amoxicillin and a betalactamase inhibitor, clavulanic acid.


What is the difference between a competitive inhibitor and an allosteric inhibitor in terms of their mechanisms of action on enzymes?

A competitive inhibitor competes with the substrate for the active site of an enzyme, blocking its function. An allosteric inhibitor binds to a different site on the enzyme, causing a conformational change that reduces the enzyme's activity.


Will introducing a competitive inhibitor change the rate of reaction?

Yes, introducing a competitive inhibitor will slow down the rate of reaction. This is because the competitive inhibitor competes with the substrate for binding to the active site of the enzyme, reducing the rate of substrate conversion into the product.


What inhibitor has a structure that is so similar to the substrate that it can bond to the enzyme just like the substrate?

A competitive inhibitor has a structure that closely resembles the substrate, allowing it to bind to the enzyme's active site in a similar manner. This competition between the inhibitor and substrate for the active site directly affects the enzyme's ability to catalyze reactions.


Is copper sulfate a competitive or noncompetitive inhibitor?

Copper sulfate is a noncompetitive inhibitor. It binds to the enzyme at a site other than the active site, which results in a change in the enzyme's shape and prevents the substrate from binding effectively.


What happens to the vmax when a competitive reversible inhibitor is added to an enzyme?

The Vmax of the enzyme will remain constant in the presence of a competitive reversible inhibitor. However, the apparent Km will increase as the inhibitor competes with the substrate for binding to the active site of the enzyme, leading to a decrease in enzyme-substrate affinity.


What is is called when something competes with the enzymes on its subtrate?

A competitive inhibitor.


What happens the reaction time with a competitive inhibitor?

A competitive inhibitor binds to the active site of an enzyme, which can slow down the rate of reaction by competing with the substrate for binding. This leads to an increase in the apparent Km value of the enzyme-substrate complex, which results in a longer reaction time to reach saturation compared to a reaction without the inhibitor.