Predict which of the following animals will have the highest

Predict which of the following animals will have the highest percentage of unsaturated fatty acid chains in their membranes. Why? 1) Desert Iguana 2) Antarctic Fish 3) Human 4) Polar Bear

DO NOT JUST ANSWER THE QUESTION EXPLAIN WHY!!!!!!!!!!!!!!!!

Solution

Answer:

Antarctic Fish have the highest percentage of unsaturated fatty acid chains in their membrane. They are cold blooded and live in extreme cold conditions, unsaturated fatty acids maintain fluidity of the cell membranes which is essential for biological activity.

Although Polar Bears live in extreme cold conditions, they are warm blooded animals which maintain high body temperature hence they don’t need high unsaturated lipids in membranes.