Lipids/fats play important roles in living things, including making up the majority of ALL cell membranes. Select the one correct role they do for living things from the choices below.

a
excellent insulators
b
primary energy source produced in photosynthesis
c
low calorie source of dietary fiber
d
enzymes

a

excellent insulators

The correct role of lipids/fats in living things is:

b) Primary energy source produced in photosynthesis