Encyclopedia > Biological membrane

  Article Content

Biological membrane

In medicine, microbiology, cell physiology, and biochemistry, a membrane is a lipid bilayer, typically embedded with proteins, which acts as a barrier within or around a cell.

Such membranes typically define enclosed spaces or compartments, in which cells may maintain a chemical or biochemical environment that differs from the outside. For example, the membrane around peroxisomes shields the rest of the cell from peroxides, and the plasma membrane separates a cell from its surrounding medium. Most organelles are defined by such membranes.

More at cell membrane.

All Wikipedia text is available under the terms of the GNU Free Documentation License

  Search Encyclopedia

Search over one million articles, find something about almost anything!
  Featured Article
Westhampton Beach, New York

... household size is 2.25 and the average family size is 2.81. In the village the population is spread out with 20.5% under the age of 18, 6.1% from 18 to 24, 24.6% from 25 to ...

This page was created in 22.7 ms