The four main types of macromolecules are proteins, nucleic acids, lipids (fats) and carbohydrates.
Proteins are macromolecules whose building blocks are amino acids. These building blocks (amino acids) are held together by peptide bonds.
Nucleic acids (either DNA or RNA) are macromolecules whose building blocks are nucleotides.
The building blocks of carbohydrates are monosaccharides that are held together by glycosidic bonds.
Lipids (e.g., phospholipids, cholesterol) are a broad category of biomolecules composed of a glycerol backbone attached to long chains of fatty acids.
In conclusion, the four main types of macromolecules are proteins, nucleic acids, lipids (fats) and carbohydrates.
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