Question

fill in the blank question
the lack of double bonds in phospholipids with saturated fatty acids allow them to pack together tightly, and therefore the membrane is
fluid. kinks introduced by double bonds in lipids with unsaturated fatty acids prevent them from packing together tightly, and therefore the membrane is
fluid.

Explanation:

For the first blank: Saturated fatty acid - containing phospholipids pack tightly, which reduces membrane fluidity, so the membrane is "less" fluid. For the second blank: Unsaturated fatty acid - containing lipids have kinks that prevent tight packing, increasing fluidity, so the membrane is "more" fluid.

Answer:

First blank: less
Second blank: more