Saturated fats have long straight tails of fatty acids,and can pack or clump tightly together in cells and animal bodies.Unsaturated fats have kinks in their tails due to double bonds,which prevents them from packing together as tightly.Animals that are ectothermic (their body temperature fluctuates with the environment)need to keep their membranes fluid at cooler temperature and thus use ______ in their membranes.

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Quizplus · Accepted Answer

Animals that are ectothermic need to keep their membranes fluid at cooler temperatures, and unsaturated fats with kinks in their tails prevent tight packing and maintain membrane fluidity. Therefore, it is best for these animals to have mostly unsaturated fats in their membranes.

Saturated Fats Have Long Straight Tails of Fatty Acids,and Can