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Material transport - Coggle Diagram
Material transport
Diffusion
through PERmeable
membrane
D = P × A × (Δc / d)
mol / s
D = diffusion speed
P = permeability coefficient
A = area of the membrane
Δc = change in concentration
for solutes
Nernst's partition coefficient
K = c (A in phase 1) / c (A in phase 2)
Osmosis
on SEMIpermeable
membranes
Osmolarity
based on the volume
c (osmotic) = n (osmotic) / V (solvent)
Osmolality
based on the mass
b (osmotic) = n (osmotic) / m (solvent)
Osmotic pressure
p osmotic = σ × c × R × T
(Pa) (Van't Hoff's law)
p osmotic = osmotic pressure
σ = reflection coefficient
c = molar concentration
R = gas constant
T = temperature
σ = 0
permeable membrane
σ = 1
impermeable membrane
(Semipermeable membrane)
Tonicity
gradient of osmotic pressure
Isotonic
equal
Hypertonic
greater
water flows out
cell shrinks