Flashcards in Chapter 4 -6 Deck (10)
What is the function of the plasma membrane?
control activity at the cell's periphery
intercepts cell signals
controls the flux of molecules and ions
Permeability descreases with?
longer FA tails
saturated FA tails
What is the structure of the plasma membrane?
The fluid mosaic model
- phospholipid bilayer is main component
What helps the phospholipid bilayer form a stable bilayer?
free lateral movement
Fluidity is increased by?
cholesterol (inhibits permeability)
proteins make the bilayer function
What are integral proteins?
What doe receptor proteins do?
respond to chemical messages
- a signal binds to a receptor and changes the cells activity