<prompt> Fluidity buffer present in cell membrane isStearic acidPalmitic acidCholesterolLinoleic acid  <response>: Membrane fluidityMembrane fluidity changes with temperature Transition temperature TmMore is the Tm,less is the fluidityCholesterol-Fluidity bufferSaturated FAsincrease Tm and decrease fluidity Unsaturated FAsdecrease Tm and increase fluidity 