facilitated diffusion Flashcards
1
Q
what molecules can pass through the lipid bilayer
A
02 and co2
2
Q
what is facilitated diffusion
A
The movement of molecules down their concentration gradient, across a membrane, with the help of carrier proteins.
Energy is not required.
3
Q
What two types of proteins present in the membrane facilitate diffusion?
A
Channel proteins and carrier proteins.
