Download presentation
Presentation is loading. Please wait.
1
Notes on The Cell Membrane
2
Purposes: Holds cell together Provides protection
Controls movement in and out of a cell Selectively permeable – some substances can pass through, others cannot Permeable to O2, H2O, CO2 Not permeable to large molecules (glucose, lipids, amino acids) and salt
3
Structure 2 layers of molecules (bilayer) Made of phospholipids
Hydrophilic heads touch water Hydrophobic tails touch each other Proteins studded throughout the bilayer Make pores to let things in and out
4
The phospholipid bilayer
Hydrophilic heads touch water Hydrophobic tails touch each other
6
At the bottom of your notes,
Write a 1 paragraph summary: what does the cell membrane look like?
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.