enzymes are certain chemicals which speed up the reactions they act like catalysts
An enzyme binds to a specific substrate (reactant) for the reaction catalyzed.
Enzymes catalyze specific reactions because of their active sites that uniquely fit certain substrates. The binding of a substrate forms an enzyme-substrate complex, facilitating the reaction. This specificity is due to the unique amino acid composition of the enzyme's active site, allowing for precise interactions that enhance reaction rates.
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