Membrane Transport Selectively permeable: The cell membrane acts like a wall around the cell but it does have pores that act like doors Filtration: process.

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Presentation transcript:

Membrane Transport Selectively permeable: The cell membrane acts like a wall around the cell but it does have pores that act like doors Filtration: process that is driven by hydrostatic pressure (pressure from water) it drives particles in and out of cell

Diffusion Diffusion: the process of particles moving from high to low concentration to achieve a balance Concentration Gradient: when the concentration of a particle is higher in one area then another

Osmosis Osmosis: the process of water moving from low solute to high solute through a selectively permeable membrane Osmotic Pressure: the force that stops osmosis due to filtration.(the flow of water across the membrane due to it’s own weight = the flow of water due to osmosis http://www.mhhe.com