Which is a difference between proteins and carbohydrates and fats?
a.Proteins are macromolecules; carbohydrates and fats are not.
b.Proteins are composed of monomers; carbohydrates and fats are not.
c.Carbohydrates and fats contain carbon, hydrogen, and oxygen; proteins do not.
d.Excess carbohydrates and fats are stored; excess proteins are not.