1. Cell membrane

2. Good morning Good morning Get your homework out so I can collect it You have a quiz over cells and viruses today.

3. 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

4. What are different names for the membrane? Phospholipid bi-layer Cell membrane Plasma membrane

5. What does the cell membrane do? Regulates (controls) what enters and leaves the cell Provides protection for the cell Provides support MAIN GOAL: HOMEOSTASIS (balance) of the cell

6. What is the main thing that makes up a cell membrane? Phospholipid – type of lipid

7. What does the cell membrane look like?

8. Semi-permeable lipid bilayer

9. 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

10. Fluid Mosaic Model A mosaic of proteins “float” in a sea of phospholipids

11. Bubble lab