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7.2 - MEMBRANE STRUCTURE & PERMEABILITY (Selectively Permeable…
7.2 - MEMBRANE STRUCTURE & PERMEABILITY
Selectively Permeable
Exchange
Environment
Regulation
#
Nonpolar
Hydrophobic
e.g. Hydrocarbons
Rapid pass
Polar
Hydrophilic
e.g. Sugars
Difficult pass
Transport Proteins
Passage
Hydrophilic
Types
Channel
Aquaporins
Water
Carrier
Bind
Change shape
Specific
Substance