The correct answer for this question is Molecule.
Proteins, carbohydrates, nucleic acids, and lipids are the four primary types of biological macromolecules, which are huge molecules required for life that are composed of smaller organic molecules. Macromolecules are made up of monomers, which are single units bonded together by covalent bonds to create bigger polymers.
A macromolecule, such as a protein or nucleic acid, is a very big molecule crucial to biophysical processes. It is made up of many atoms that are covalently bound. The smaller molecules known as monomers are the building blocks of many macromolecules. Large non-polymeric molecules like lipids, nanogels, and macrocycles, as well as biopolymers (proteins, carbohydrates, and nucleic acids), are the most prevalent macromolecules in biochemistry. In addition to synthetic fibers, macromolecules can also be found in research materials like carbon nanotubes.
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