How do enzymes affect the rate of reaction?

  • Google+ icon
  • LinkedIn icon
  • 1265 views

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.

Bukky O. GCSE Biology tutor, GCSE Maths tutor, GCSE Chemistry tutor, ...

About the author

is an online GCSE Chemistry tutor who tutored with MyTutor studying at Newcastle University

Still stuck? Get one-to-one help from a personally interviewed subject specialist.

95% of our customers rate us

Browse tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok