There is a thin membrane composed of protein and fat. Controls the cell lines exist and Act regulated out of some substances, such as water, air and other dissolved substances.
The characteristics of a membrane composed of proteins and fats. Controls cell To be stable and helps control access into and out of certain substances such as water, air, and solvents.
A thin membrane is composed of protein and fat, controlling the cell. To be a picture and controlling passing in and out of certain substances, such as water, air, and substances dissolve.