The 3 dimensional shape of a protein is maintained mainly bya) Strong covalent interactionsb) Interactions with other proteinsc) Multiple weak interactionsd) Interactions with prosthetic groups

Both weak noncovalent interactions and strong covalent bonds stabilize the tertiary structure of the protein (which provides three-dimensional shape). The major forces stabilizing tertiary structure (which provides three-dimensional shape) are multiple weak noncovalent interactions:- Hydrogen bonds, hydrophobic interactions, ionic bond, and Van der Waals forces. Covalent (Disulfide) bonds also provide some stability.