Question

enzymes that move certain phospholipids between leaflets have also which of the following properties?A. play a role establishing and maintaining membrane lipid asymmetryB. Transport proteinsC.Blocks post-synaptic membraneD.Interacts with neighboring epithelial cells, or basal membraneE. All of these are correct.

Answer 1

A. play a role establishing and maintaining membrane lipid asymmetry

Step-by-step explanation:

Proteins that move move certain phospholipids between leaflets are transmembrane proteins via "flip-flop" transition have also the possibility to maintain membrane lipid asymmetry. There are few types of such proteins:

• flipases-move lipids from the exterior to the interior side of the membrane, energy required
• flopases-move lipids in reverse comparing to flipases, energy required
• scramblases-no energy required, bidirectional

Because of the action of those proteins, cytosolic side of plasma membrane differs from exoplasmic side (asymmetry).