Answer:
More fluid bilayer.
Step-by-step explanation:
The plasma membrane of the organism are made of the phospholipid bilayer and the proteins are embedded or surround the bilayer. The carbohydrates are present in association with proteins and lipids.
Decreasing the fatty acid saturation means increasing the content of unsaturated fatty acids, double bonds in the bilayer. This introduces kinks in the structure, makes the bilayer more flexible and increases the content of more fluidity of the membrane.
Thus, the answer is more fluid bilayer.