Three phospholipids X Y and Z are distributed in the plasma

Three phospholipids X, Y, and Z are distributed in the plasma membrane as indicated in Figure Q11-14. For which of these phospholipids does a flippers probably exist? X only Z only X and Y Y and Z

Solution

Correct Answer: (c) : X&Y

Explanation: X&Y is the correct answer because, when phospholipids are put into the cytosolic face of lipid bi-layer, flippases are required to move X&Y to the opposite faces of the lipid bilayer, as they can\'t voluntarily flip across the bilayer.