Ohio State University: Cell Membranes

Lab groups fill a section of dialysis tubing with glucose and starch solutions and suspend it in a water bath. They use iodine as a starch indicator and a glucose test strip to find out if either of the materials crossed the selectively...

Use salmon eggs as a cell model for demonstrating the movement of water over concentration gradients. Junior scientists examine the same process microscopically with an onion cell. They use a thistle tube and a semipermeable membrane to...

The homeostasis pose is a popular yoga pose, and a video will explain how to do it properly. It also covers why we shiver, why we sweat, and the difference between a cell wall and a cell membrane. 

This interactive feature describes some of the most important structures and functions of the cell membrane.

This site from the Ohio State University talks about poisonous and edible mushrooms, and shows some species of each.

Informative text is clearly written and supported by good illustrations and charts as well. A quiz is also provided at the bottom of the site.

Read about the fascinating science of cell differentiation.

A tutorial about the function of the cell membrane as a selective barrier that moves material into and out of the cell to maintain homeostasis.

Comprehensive description and graphic of plasma membrane of prokaryotic and eukaryotic cells.

This resource offers a chronology of John Glenn from his birth in 1921 to the present, including important events from his early spaceflights, his political career, and his return to space on board the Space Shuttle Discovery in 1998.