Final answer:
Biological macromolecules are made up of many repeating units of the same chemical called monomers. Examples include carbohydrates, proteins, and nucleic acids.
Step-by-step explanation:
Biological macromolecules are large molecules, necessary for life, that are built from smaller organic molecules. There are four major classes of biological macromolecules: carbohydrates, lipids, proteins, and nucleic acids. Each is an important cell component and performs a wide array of functions.
These macromolecules are made up of many repeating units of the same chemical, called monomers, which act as building blocks. For example, carbohydrates are made up of monosaccharides, proteins are made up of amino acids, and nucleic acids are made up of nucleotides.