How do enzymes affect the rate of reaction?

Enzymes are known as biological catalyst and work by lowering the activation energy of a reaction. They do this by providing an alternative pathway which speeds up the reaction without the catalyst undergoing a permanent change. The substrate binds to the active site of the enzyme allowing an intermediate to be formed which has a lower activation energy than if there was no catalyst. As a globular protein, pH and temperature affect the bonds that hold the enzymes structure making enzymes sensitive to these factors.  An important thing to remember is that enzymes do not affect the equilibrium of a reaction.

BO
Answered by Bukky O. Chemistry tutor

18656 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

How does one test for halide ions?


What is the difference between oxidation and reduction?


How would you carry out a flame test and what colours would Li+, Na+, K+ and Ca2+ ions form?


Why can ammonium sulfate be described as a salt?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences