Transcript Membranes and Transport PPT

Do Now
▪ What is the role of the cell membrane?
▪ How do you think it is able to perform this function?
Membrane and Transport
Chapter 5
Objectives
▪ To identify the components of the cell membrane
▪ To explain what role each macromolecule has in creating the
membrane structure
Cell Membranes
▪ Maintain an internal environment that is different from the external
environment.
▪ Regulates what molecules enter and exit the cell.
▪ Membranes are composed of a phospholipid bilayer.
Phospholipid Bilayer
▪ Lets break down the word.
– Phospho- phosphate group
– Lipid- fat
– Bilayer- 2 layers
Phospholipid Bilayer
▪ The phospholipid bilayer is said to be a “Fluid Mosaic Model”.
POGIL
▪ Get with a partner!