Introduction A macromolecule is a molecule that has a huge number of atoms. Macromolecules have more than 100 constituent atoms on average. When applicable, macromolecules and their components have considerably different properties than smaller molecules. Carbohydrates, lipids, proteins, and nucleic acids are the four major types of biological macromolecules. Each is a significant component of the cell and performs various tasks. When added together, these molecules make up the majority of a cell’s mass. Biological macromolecules are made up of carbon making them organic. Hydrogen, oxygen, nitrogen, phosphorus, sulfur, and other minor elements may also be present. Organic molecules in