A permeable membrane is a thin barrier or layer that allows certain substances or particles to pass through, while blocking others from passing. It selectively allows some things to enter or exit, like a filter.
Sentences with «permeable membrane»
The dissolved sugar molecules can not pass through the semi permeable membrane of the egg, but the smaller water molecules can. (science-sparks.com)
First we need to remove the shell to expose the semi permeable membrane of the egg. (science-sparks.com)
So how could life harvest these chemical imbalances before soft, permeable membranes existed to keep the ingredients organised? (newscientist.com)