What is an enzyme?

An enzyme is a biological catalyst. It is a protein with an active site that binds to a substrate to accelerate a chemical reaction.

ET
Answered by Epen T. Biology tutor

3262 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

How does evolution occur by natural selection?


Compare and contrast facilitated diffusion and osmosis.


Describe the hormone changes that occur during a womens menstrual cycle


Describe the different types of variable in a scientific experiment


We're here to help

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

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning