Can Macromolecules Store Energy?

While carbohydrates supply immediate energy for the body, lipids — a class of macromolecule — provide long-term energy storage. ... The body stores lipids as reserves of fat, but the reserves will be depleted over time as cells use the stored energy.

What macromolecule is energy storage?

Carbohydrates are energy-rich. Many, such as glycogen, provide energy-storage functions. Other carbohydrates, such as cellulose—a component of plant cell walls—serve primarily structural roles in a cell. Lipids are the only macromolecules that are not polymers.

What macromolecule stores short-term energy?

The primary function of carbohydrates is for short-term energy storage (sugars are for Energy).