Whatchanges would make a cell membrane more fluid?

"Lower the cholesterol content in the cell membrane" changes would make a cell membrane more fluid.

Explanation:

The membrane fluidity relates to the viscosity of a cell membrane or synthetic lipid membrane in the lipid bilayer. Lipid packing can impact membrane fluidity. Membrane viscosity can influence the movement and diffusion inside the membrane of proteins and other bio-molecules, thus impacting the behaviors of such objects.

When saturated fatty acids are pressured by declining temperatures, they force in to each other, forming a thick membrane that is relatively rigid.The kinks present in their tails helps in removing the neighboring phospholipid molecules when unsaturated fatty acids are small, this supports in maintaining fluidity in the membrane.