the81147gammer the81147gammer

12-07-2016
Biology

contestada

The cell membrane only lets some molecules in and out because it is living. semi-permeable. flexible. non-permeable.

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caitlinc18 caitlinc18

12-07-2016

the cell membrane is semi-permeable, kind of like a filter to let some molecules in and keep larger molecules out

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munchken munchken

12-07-2016

Semi permeable
Semi meaning like some and permeable is like pass through so some pass through.

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