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Title: what is the difference between a semi permeable and a differentially permeable membrane? Post by: datheman on Dec 4, 2012 I googled differentially permeable and it keeps sending me to the definition for semi permeable. I just want to know if it is the same thing so I dont get it wrong on my BIO assignment.
Title: what is the difference between a semi permeable and a differentially permeable membrane? Post by: SMK on Dec 4, 2012 I mainly used semi-permeable
Semi permeable - means partially permeable, and will only let smaller molecules through differentially permeable - means permeable to certain molecules only - this could be based on size, charge, shape or any other factor that affects movement. Hence I would say, just from the words alone that things that are semi-permeable are just differentially permeable ACCORDING TO SIZE. Whereas differentially permeable doesn't have to be according to size, but rather to anything causing the difference in permeability. For example: Intestine wall is semi-permeable (water + few small molecules/ions) Kidney wall is differentially permeable (according to ionic charge) Title: what is the difference between a semi permeable and a differentially permeable membrane? Post by: toney32 on Dec 4, 2012 Those terms can be used interchangeably. Since there is a "difference" in what goes through and what doesn't, I prefer to use the term "differentially."
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