Answer:
selectively permeable
Cell membranes only allow some molecules through. This characteristic is why cell membranes are selectively permeable. They are not impermeable (not letting anything pass) nor are they freely permeable (letting everything can pass). This quality allows a cell to control what enters and exits it.
Answer:
The cell membrane's main trait is its selective permeability, which means that it allows some substances to cross it easily, but not others
Explanation:
