The cell membrane is , meaning that it’s picky about what it lets in and out. are scattered across the bilayer that help assist the membrane's job of allowing only certain substances in and out of the cell.

Licensing Requirements for Bouncers Texas Archives - SECURITY SERVICE NEWS . com

Word Bank:
permeableselectively-permeableproteinsphospholipidcarbohydratestriglyceride
Blank 1:
Blank 2:
Blank 3:

selectively-permeable

phospholipid
proteins