Topic 1: 2 Flashcards
1
Q
factors influencing diffusion
A
concentration gradient electrochemical gradient temperature distance SA for diffusion molecular mass of solute viscosity of the medium lipid solubility
2
Q
Fick’s law
A
net flux= perm constant x SA x (conc gradient)
3
Q
channel proteins AKA
A
transmembrane proteins
4
Q
carrier proteins aka
A
inner/outer membrane proteins
5
Q
cations
A
attracted to negative areas
6
Q
anions
A
attracted to positive areas
7
Q
urea
A
diffuses fast
8
Q
general factors
A
conc gradient
temperature
9
Q
properties of the cell membrane
A
SA
Distance (memb thickness)
viscosity
10
Q
properties of the molecule
A
molecular mass
lipid solubility
11
Q
permeability constant (for any particular molecule and any particular membrane)
A
temperature distance (memb thickness) viscosity molecular mass lipid solubility
12
Q
factors that are not constant in permeability constant
A
conc gradient
SA
