Diffusion Flashcards
1
Q
Diffusion goes against or with the concentration gradient?
A
Goes down the concentration gradient
2
Q
What if flux?
A
Number of molecules moving from one point to another per unit time
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3
Q
How is the diffusion coefficient related to molecular weight?
A
It is inversely proportional
4
Q
What is differential permeability?
A
Relative abilities of different molecules to diffuse across membranes
5
Q
Order these based on their permeability A. Small uncharged polar molecules B. large uncharged polar molecules C. Hydrophobic molecules D. Ions
A
C,A,B,D
6
Q
What is osmotic pressure?
A
Force that can lift water
