Hydrophobic "tails" and hydrophilic ["hydro"-FIL-ik] "heads" comprise the (*) "phospholipid [FAHS-foh-LIH-pid] bilayer" that is the main part of this structure.
Flippases ["flip aces"] allow movement between this structure's two "leaflets". The glycocalyx is a layer just outside this structure, which is described by the fluid mosaic model. Hydrophobic "tails" and hydrophilic ["hydro"-FIL-ik] "heads" comprise the (*) "phospholipid [FAHS-foh-LIH-pid] bilayer" that is the main part of this structure. Plants have an extra "wall" around this object that is interrupted by aquaporins and sodium-potassium pumps. For 10 points, name this organelle that makes up the exterior of a cell.
Flippases ["flip aces"] allow movement between this structure's two "leaflets".
cell membrane (accept plasma membrane; accept phospholipid bilayer before "phospholipid"; prompt on "cell" before it is mentioned; do not accept "cell wall")