Assertion: membrane's layer | /r/LocatedNear | the cell
Facets:
Source sentences:
text: A cell membrane is called a bilayer because it's made of two layers that face each other and surround the cell.
text: The cell membrane is also called a plasma membrane which contains a double layer of proteins and lipids that surrounds a cell and separates the cytoplasm from its surroundings.
text: cell membrane - the thin layer of protein and fat that surrounds the cell, but is inside the cell wall.