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Diffusion/ Osmosis

Diffusion/ Osmosis. Mrs. Hansell Biology I. Movement of molecules across a membrane WITHOUT energy. Movement of molecules High to Low -Large polar molecules can not pass. Movement of water High to Low -Small polar can pass. High to Low.

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Diffusion/ Osmosis

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  1. Diffusion/ Osmosis Mrs. Hansell Biology I

  2. Movement of molecules across a membrane WITHOUT energy Movement of molecules High to Low -Large polar molecules can not pass Movement of water High to Low -Small polar can pass High to Low http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_diffusion_works.html

  3. H2O movement Molecule Isotonic Hypertonic Hypotonic Isotonic- Hypotonic- Hypertonic- Equal H2O & molecules Cell keeps normal shape More molecules, less H2O Cell shrivels More H2O, less molecules—Cell swells http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_osmosis_works.html

  4. Diffusion of molecules across a membrane through a transport protein. http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_facilitated_diffusion_works.html

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