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15y ago

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Is penicillin a non-competitive inhibitor?

no


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.


Is penicillin an competitive inhibitor?

No, penicillin is not a competitive inhibitor. Penicillin is an antibiotic that works by interfering with the synthesis of bacterial cell walls, leading to cell death.


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 phenylthiourea a inhibitor?

Yes, phenylthiourea (PTU) is an inhibitor, specifically of the enzyme tyrosinase, which is involved in the synthesis of melanin. By inhibiting this enzyme, PTU can reduce melanin production in organisms, making it useful in studies related to pigmentation. Additionally, it is known to inhibit other enzymatic processes, contributing to its role in various biochemical research applications.


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.