Choose all of the correct statements about protein structure

Choose all of the correct statements about protein structure. Hint: For each level of structure, only one statement is correct.

Primary structure is due to covalent bonding between amino acids.

Primary structure is due to hydrogen bonding between amino acids.

Primary structure is due to hydrogen bonding, ion-ion interactions, and van der Waals interactions between amino acids.

Secondary structure is due to covalent bonding between amino acids.

Secondary structure is due to hydrogen bonding between amino acids.

Secondary structure is due to hydrogen bonding, ion-ion interactions, and van der Waals interactions between amino acids.

Tertiary and quaternary structure is primarily due to covalent bonding between amino acids.

Tertiary and quaternary structure is primarily due to hydrogen bonding between amino acids.

Tertiary and quaternary structure is primarily due to the hydrophobic effect, hydrogen bonding, ion-ion interactions, and van der Waals interactions.

Solution

Answer:

Primary structure is due to covalent bonding between amino acids.

Secondary structure is due to hydrogen bonding between amino acids.

Tertiary and quaternary structure is primarily due to the hydrophobic effect, hydrogen bonding, ion-ion interactions, and van der Waals interactions.

Explanation:

The primary structure of a protein refers to the linear sequence of amino acids in the polypeptide chain. The primary structure is held together by covalent bondssuch as peptide bonds, which are made during the process of protein biosynthesis.

Secondary structure of proteins is formed by the hydrogen bonds form between the oxygen of the C=O of each peptidebond in the strand and the hydrogen of the N-H group of the peptide bond four amino acids below it in the helix (alpha helix and beta helix).

Tertiary structure results from the interactions between the side chains (R groups) of the various amino acids. This three dimensional structure is due to intramolecular interactions (covalent bonds, hydrogen bonds, ionic bonds, and Van Der Waals interactions) between the side groups along the polypeptide chain.