1. Carbohydrates: These are made up of monosaccharides, which are simple sugars like glucose, fructose, and galactose.

2. Lipids (fats and oils): These are made up of fatty acids and glycerol.

3. Proteins: These are made up of amino acids.

4. Nucleic acids (DNA and RNA): These are made up of nucleotides, which contain a sugar (ribose or deoxyribose), a phosphate group, and a nitrogenous base.

Therefore, the answer is carbohydrates.