you have added an irreversible inhibitor to a sample of enzyme and substrate. At this point, the reaction has stopped completely.
The enzyme is inactive at this point. Nothing can be done except add new enzyme. - is the best way to get the activity of the enzyme back up.
What is enzyme inhibitor?
A molecule that binds to an enzyme and inhibits its activity is known as an enzyme inhibitor. Enzymes are proteins that quicken chemical reactions in which substrate molecules are changed into products, which are necessary for life.
An enzyme inhibitor, which prevents the enzyme from catalyzing the reaction by either adhering to the enzyme's active site or to another location on the enzyme, stops (or "inhibits") this process. Enzyme inhibitors can bind reversibly or irreversibly. The enzyme and irreversible inhibitors work together to create a chemical bond that stops the enzyme from functioning until the bond is broken.
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