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Cell membrane trans

Jewell

QuestionAnswer
Cell Membrane Selectively Permeable
2 ways molecule Move 1)Bulk diffusion 2)diffusion
Bulk flow requires what? Driving Pressure
Two types of Diffusion simple and facilitated
Direction of concentration grad high to low
Rate of diffusion across a membrane is dependent on what factors? concentration difference, area available, lipid solubilty
lipid solubility is dependent on what? size and charge
Ficks Law rate of diffusion(J) is proportional to the concentration difference J= (P.A) (C1-C2)
Facilitated diffusion is saturable True, or False? True
What controls permeability to ions? Channels
Active Transport requires what? Energy!
Secondary active transport co-transport with Nat+ ions
Symport Same direction
Antiport opposite directions
Created by: ogram
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