What is diffusion?

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

This video can not be played

Description

This video explains how particles spread through diffusion from areas of high concentration to low concentration. Different factors affect the rate of diffusion – temperature, concentration gradient and surface area.

Find out more about GCSE Biology

Cell biology

Now playing video 10 of 11

Cell structure. Video
1 of 11
Cell division. Video
2 of 11
How to investigate osmosis. Video
3 of 11
How do antiseptics affect the growth of bacteria? Video
4 of 11
Microorganisms. Video
5 of 11
Calculating cell size and scale. Video
6 of 11
What are the differences between plant and animal cells? Video
7 of 11
What are chromosomes and DNA? Video
8 of 11
What is mitosis and the cell cycle? Video
9 of 11
Now playing. What is diffusion? Video
10 of 11
Up next. What is active transport? Video
11 of 11