Explain how enzymes speed up chemical reactions and how they are denatured.

Enzymes speed up chemical reactions by lowering the activation energy, which provides an alternative pathway, making it easier to reach the transition state. Enzymes are denatured by changes in temperature and pH. This causes the Hydrogen bonds to break which changes the tertiary structure of the enzyme. The shape of the active site is changed so the substrate no longer fits and therefore the enzyme-substrate complex cannot form.

TW
Answered by Tara W. Biology tutor

7372 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

Why are active transport and diffusion different?


Doctors are now prescribing fewer antibiotics to reduce the evolution of antibiotic resistant bacteria. Describe the process of evolution of antibiotic bacteria. [6 marks]


Describe mitosis as part of the cell cycle


What is the correct order of the reflex arc?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences