What is an enzyme?

To play this video you need to enable JavaScript in your browser.

This video can not be played

Description

This video explains how enzymes help to speed up the metabolism. Enzymes are biological catalysts that help break down the food we eat so the nutrients can be absorbed into the bloodstream.

Find out more about GCSE Biology

Living together – food and ecosystems

Now playing video 6 of 12

Photosynthesis. Video
1 of 12
Organisation of an ecosystem. Video
2 of 12
How to investigate osmosis. Video
3 of 12
What is diffusion? Video
4 of 12
What is active transport? Video
5 of 12
Now playing. What is an enzyme? Video
6 of 12
Up next. Transpiration and translocation. Video
7 of 12
What is photosynthesis? Video
8 of 12
What is a community? Video
9 of 12
How do abiotic factors affect life on earth? Video
10 of 12
Key factors that affect the rate of decay. Video
11 of 12
What are the molecules of life? Video
12 of 12