Lecture 16/17: Membrane Transport Flashcards
0
Q
What is Lactose Permease?
A
A symporter that uses proton gradient to drive lactose and other sugars against concentration gradient
1
Q
What are ABC Transporters
A
Multi-drug resistant protein/P glycoprotein
Pumps a wide range of small molecules out of cells using ATP
have common architecture
2
Q
Which part of the potassium channel closes and opens the channel?
A
1-4
3
Q
Why does K+ pass through K+ channel and Na+ does not?
A
Because, even though the Na+ ion is smaller, the hydration free energy is larger for Na+ making K+ the one that gets hydrolyzed
