Final answer:
Disulfide bonds are not involved in tertiary structure of proteins.
Step-by-step explanation:
The bonds that are not involved in tertiary structure of proteins are disulfide bonds.
Tertiary structure of proteins is determined by a variety of attractive forces, including hydrophobic interactions, hydrogen bonding, ionic bonding, and disulfide linkages. Disulfide bonds are covalent bonds formed between cysteine amino acids in the polypeptide chain, and they help to further stabilize the tertiary structure.
Therefore, the correct answer is a) Disulfide bonds.
The bonds that are not involved in tertiary protein structure are peptide bonds. The tertiary structure of proteins is determined by a variety of chemical interactions, which include: ionic bonding, hydrogen bonding, disulfide linkages (covalent bonds), and hydrophobic interactions.
Peptide bonds, on the other hand, are involved in linking amino acids together to form a polypeptide chain, which is the primary structure of proteins.