Explain how a non-competitive enzyme inhibitor effects the rate of a reaction catalsyed by an enzyme?

A non competitive enzyme binds to the enzyme but not at the active site. This creates an enzyme inhibitor complex. The binding of the inhibitor to the enzyme influences the chemical bonds (for example hydrogen bonds) within the enzyme, this changes the tertiary structure of the enzyme. As a result the shape of the active site is changed so that the substrate is no longer a complementary shape to the active site. Therefore fewer enzyme substrate complexes are formed per a second and so fewer reactions take place per a second. This means the rate of the reaction decreases.

Answered by Biology tutor

2932 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

How are action potentials transmitted across synapses using neurotransmitters such as acetylecholine?


Describe the mass flow hypothesis of translocation.


Describe how the products of the Light dependent stage of photosynthesis are used in the Calvin cycle (3marks)


Why does an enzyme only catalyse one reaction?


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