Here's a breakdown:
* Structure: The cell membrane is a thin, flexible layer made up primarily of phospholipids arranged in a bilayer. This means there are two layers of phospholipids with their hydrophilic (water-loving) heads facing outwards and their hydrophobic (water-fearing) tails facing inwards.
* Function: The cell membrane serves several crucial functions:
* Protection: It acts as a barrier, protecting the cell's internal environment from the outside world.
* Regulation of transport: It controls the movement of substances into and out of the cell, acting as a selective filter.
* Communication: It contains receptors that allow the cell to communicate with its environment and with other cells.
* Structural support: It helps maintain the cell's shape and integrity.
The cell membrane is a dynamic and complex structure that is essential for the survival of all cells.
