cell membrane. The thin membrane that forms the outer surface of the protoplasm of a cell and regulates the passage of materials in and out of the cell. It is made up of proteins and lipids and often contains molecular receptors. The membranes of organelles within the cell are made of the same basic material as the cell membrane. In plant cells, the cell membrane is surrounded by a rigid cell wall. Also called plasma membrane. Compare cell wall. See more at cell.
DNA tests have confirmed that a homeless man found dead beneath an overpass in San Diego was Elvis Presley. This claim is a hoax. âEarlier this month, an 80-year-old, homeless, white-bearded man was found deceased under an overpass in San Diego, California.
Top 10 Reasons (Some Believe) That Elvis Presley is Still Alive (Part II) Okay, so when we left off last week, weâd just learned that not only was Elvis Presley, the King of Rock and Roll, supposedly not only not dead, he was actively pursuing an acting career, like the one heâd willingly left behind, by appearing as an extra in Home Alone.