The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.
Individual, population, community, biome, ecosystem
The units of genetic distance derived from bacterial conjugation studies are called minutes. Bacterial conjugation is the process by which a bacterium transfers genetic materials to another through direct contact. One bacterium serves as a donor of the genetic material and the other serves as the recipient.
Epineurium surrounds a nerve, which contains fascicles which contain nerve fibers.
Equal to the volume of its container.
