Facilitated Diffusion Across Membranes Flashcards
1
Q
Explain how ionophores work in making facilitated diffusion possible? Using Valinomycin as an example.
A
2
Q
Explain how ion channels work.
A
These can be gated!
3
Q
What is the symmetry of this molecule. What’s notable about the structure?
A
C4 symmetry
4
Q
Define what Aquaporins are.
What are the size of its pores?
What shape is it?
A
C4 symmetry
4 separate channels for H2O to go through.
5
Q
Fill in blanks: passive vs facilitated diffusion
A
On table: nonfacilitated diffusion left, facilitated on right.
6
Q
Where is GLUT1 permease in the body? What type of channel is it? How does it work?
A
7
Q
Define GLUT1-4 transporters, where they are found.
A
Note: Kt is analogs to Km t=transport
GLUT1= on surface of red blood cells.
