The Cell Membrane

The cell membrane is essential to cell survival.
Where it is: this surrounds the cell

What it looks like: double layer of phospholipds, protiens, carbohydrates, and cholesterol that encases the cytoplasm and organelles like saran wrap

What it does: anchors the cytoskeleton, attatches cell to extracellular matrix, transport of materials in and out of the cell, recieves and converts signals from other cells, keeps the cell and all of its contents together

Here's where I got this info...