Cell membrane

Good morning

Get your homework out so I can collect it

You have a quiz over cells and viruses today.

Cell Membrane

Title the next blank page in your notebook:◦Cell Membrane

Underneath the title write:◦EQ: How does the cell membrane

structure control which substances enter and exit the cell?

Make sure you put it in your table of contents

What are different names for the membrane?

Phospholipid bi-layerCell membranePlasma membrane

What does the cell membrane do?

Regulates (controls) what enters and leaves the cell

Provides protection for the cellProvides support

MAIN GOAL: HOMEOSTASIS (balance) of the cell

What is the main thing that makes up a cell membrane?

Phospholipid – type of lipid

What does the cell membrane look like?

What does the cell membrane look like?

Semi-permeable lipid bilayer

What do the different parts of the cell membrane do?

Membrane protein – helps move material in and out of the cell

Carbohydrate receptor – allows cells to communicate and identify each other

Cholesterol – makes the cell membrane flexible

Fluid Mosaic ModelA mosaic of proteins “float” in a

sea of phospholipids

Bubble lab