This site gives a good explanation of osmosis and reverse osmosis. Also includes a scientific diagram of the process.

An online tutorial that takes you through an exploration of the processes of osmosis and osmotic pressure.

A short informational text piece which explains the cellular process of Pinocytosis.

[Free Registration/Login may be required to access all resource tools.] The process of molecules moving from an area where there are lots of molecules to an area where there are fewer molecules is known as diffusion. The diffusion of...

Explains the processes of osmosis and diffusion using labeled illustrations, discusses how they occur and gives examples.

This lesson explains the process of diffusion. It explains how diffusion is a passive form of transport, used to move molecules down their concentration gradient. It is 2 of 8 in the series titled "Diffusion."

This lesson explains the process of diffusion. It explains how diffusion is a passive form of transport, used to move molecules down their concentration gradient. It is 4 of 8 in the series titled "Diffusion."

This lesson explains the process of osmosis. It explains how osmosis is a passive form of transport, used to move water molecules across a semi-permeable membrane, down their concentration gradient. It is 2 of 8 in the series titled...

This lesson explains the process of osmosis. It explains how osmosis is a passive form of transport, used to move water molecules across a semi-permeable membrane, down their concentration gradient. It is 1 of 8 in the series titled...

This lesson explains the process of diffusion. It explains how diffusion is a passive form of transport, used to move molecules down their concentration gradient. It is 1 of 8 in the series titled "Diffusion."

This site gives a good explanation of osmosis and reverse osmosis. Also includes a scientific diagram of the process.

This online biology book offers a comprehensive overview of cellular metabolism and fermentation. Content includes a look at glycolysis, anaerobic pathways, and aerobic respiration.