Question

Which two of these molecules store energy for organisms?

carbohydrates and lipids

lipids and nucleic acids

carbohydrates and proteins

proteins and nucleic acids

Answer 1

proteins and nucleic acids

Answer 2

nucleic acids do not have the function of storing energy for organisms. You'd want to see the molecules that molecularly have the strongest bond energies, that would be carbohydrates and lipids. And this is true, they are actually the molecules that store energy for all organisms.