antioxidant. 1  Chemistry. any substance that inhibits oxidation, as a substance that inhibits oxidative deterioration of gasoline, rubbers, plastics, soaps, etc. 2  Biochemistry. an enzyme or other organic substance, as vitamin E or beta carotene, that is capable of counteracting the damaging effects of oxidation in animal tissues.
Amino acids are natural monomers that polymerize at ribosomes to form proteins. Nucleotides, monomers found in the cell nucleus, polymerize to form nucleic acids â DNA and RNA.Glucose monomers can polymerize to form starches, glycogen or cellulose; xylose monomers can polymerise to form xylan.ucleotides, monomers found in the cell nucleus, polymerize to form nucleic acids â DNA and RNA. Glucose monomers can polymerize to form starches, glycogen or cellulose; xylose monomers can polymerise to form xylan.
1 Proteins are made up of polypeptide chains, which are amino acids joined together with peptide bonds. 2  The unique sequence of amino acids that make up a protein or polypeptide chain is called the Primary Structure.