Biology
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Amino Acids and Proteins Proteins are about 50% of the dry weight of most cells, and are the most structurally complex macromolecules known. Each type of protein has its own unique structure and function. Polymers are any kind of large molecules made of repeating identical or similar subunits called monomers . The starch and cellulose we previously discussed are polymers of glucose, which in that case, is the monomer.
