This resource describes the structure and functions of the cell membrane.

Brief text summary of what students learn in the Diffusion across a Selectively Permeable Membrane lab, along with links to download Student Handouts and Teacher Preparation Notes in PDF or Word formats. Main teaching points include...

This comprehensive study guide covers the main terms and concepts needed for a unit on cell transport and homeostasis.

[Free Registration/Login may be required to access all resource tools.] Describes facilitated diffusion.

An activity to understand how diffusion is a result of random motion and collisions of particles. With the virtual labs, explore how a drop of food coloring into a glass spreads and how perfume diffuses at different temperatures and...

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

This activity demonstrates diffusion, osmosis, and active transport through 12 interactive models. (Requires Java)

Get to know cells, what they create, how to identify them, and how to tell whether they belong to a plant or an animal. Several activities

Two learning games, created by visitors to What2Learn, provide a fun way to learn how cells transport molecules.

Moving materials across the cell membrane sometimes requires energy, called active transport. This tutorial covers both primary and secondary active transport with good clear animations.

An interactive demonstration where students make observations of the process of diffusion. Students draw and record observations, make predictions, and make comparisons between what they're observing and how a cell membrane works.

This definition and explanation osmosis shows how water diffuses from regions where it is in high concentration to regions where it is in low concentration.

Diagrams and animations help you understand the basics of cell membrane structure and function.

This resource is an article about the cell membrane, and its role in water and solute movement in and out of the cell.

This cellular biology page presents extensive detail on the chemical nature of the cell membrane. Using the Chime plug-in, students can manipulate and study models of the membrane.

In this hands on site, you will find several simple, fun, cheap, and educational surface area demonstrations to use when studying cell membranes.

Learn about diffusion, osmosis, dialysis, and active transport in this college textbook. Section also includes how to calculate the rate of diffusion. Section includes problems and questions for the students to answer to ensure...

[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...

This lesson explains the process of facilitated diffusion, explaining that it is a passive form of transport which uses protein channels to move larger molecules down their concentration gradient. It is 3 of 9 in the series titled...

This lesson explains the process of facilitated diffusion, explaining that it is a passive form of transport which uses protein channels to move larger molecules down their concentration gradient. It is 4 of 9 in the series titled...

This lesson explains the process of facilitated diffusion, explaining that it is a passive form of transport which uses protein channels to move larger molecules down their concentration gradient. It is 5 of 9 in the series titled...

This lesson explains the process of facilitated diffusion, explaining that it is a passive form of transport which uses protein channels to move larger molecules down their concentration gradient. It is 1 of 9 in the series titled...

Explains the process of facilitated diffusion which allows selective movement of materials across the cellular membrane.

Learn all about cell membranes in this game. Build a plasma membrane and learn about the membrane's functions. Identify the parts of a membrane, and learn how diffusion, transport, and osmosis work in cells. Includes a worksheet that can...