Answer: Plasma membrane Chapter 5 cell division
The cell membrane or plasma membrane is a biological membrane that surrounds the cytoplasm of a cell. In animals the plasma membrane is the outer boundary of the cell while in plants and prokaryotes it is usually covered by a cell wall. This membrane serves to separate and protect a cell from its surrounding environment and is made mostly from a double layer of phospholipids which are …
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Sun Nov 04 2001 13:30:00 GMT-0500 (Eastern Standard Time) · Mitochondria stripped of their outer membrane are called mitoplasts. Outer membrane . The outer mitochondrial membrane which encloses the entire organelle is 60 to 75 angstroms (Å) thick. It has a protein-to-phospholipid ratio similar to that of the cell membrane (about 1:1 by weight). …