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PSL300H1 (220)
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psl 300.docx

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Department
Physiology
Course
PSL300H1
Professor
All Professors
Semester
Fall

Description
BackgroundCell membrane is not an inert bag holding the cell togetherCell membranecomposed of Phospholipid bilayerLipidsoluble molecules and gases diffuse through readilyWatersoluble molecules cannot cross without helpImpermeable to organic anions proteinsPermeability depends on molecular size lipid solubility and chargeLike a security guard allows some people to get through and other to not o Gases and lipids will get through phospholipid bilayer o Polar moleculescharged molecules proteins cannot get through easy at all the polar bear is to large because he eats salmon which is protein and c
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