Six facts about
Membranes are made of a fluid double layer of
lipid, with proteins scattered around in it.
The lipid bilayer is made of
arrange themselves in a double layer because they have
one end that is attracted to water
while the other end is repelled
The model of this structure is the fluid mosaic model.
Some of the proteins act as pores or pumps.
The membrane controls the way that substances enter
and leave cells.
Carbohydrates may be attached to some of the
proteins. These may act as receptors.