LIFE SCIENCE

Detailed explanation-1: -Lipids perform many different functions in a cell. Cells store energy for long-term use in the form of lipids called fats. Lipids also provide insulation from the environment for plants and animals.

Detailed explanation-2: -So, the correct answer is Lipids.

Detailed explanation-3: -Adipose tissue is made up of cells called adipocytes that collect and store fat in the form of triglycerides, for energy metabolism. Adipose tissues additionally serve as insulation to help maintain body temperatures, allowing animals to be endothermic, and they function as cushioning against damage to body organs.

Detailed explanation-4: -Therefore, it has been clear from the above discussion that Lipids are the macromolecules that function as energy storage compounds, components of cell membranes and can also provide insulation.