Primary structure refers to the amino acid sequence of a polypeptidePrimary structure refers to blank. Secondary structure refers to blank created by blank. Tertiary structure refers to blank. Primary structure is determined by blank whereas secondary and tertiary structures are determined by blank. Primary structure is stabilized by blank between blank, whereas secondary structure is stabilized by blank between blank while tertiary structure is stabilized by blank ... Secondary structure

Protein exists in different forms - primary, secondary, tertiary and quaternary structure.

Explanation:

Primary structure of protein consists of amino acids joined by a peptide bonds. Peptide bond exists as covalent bond. Secondary structure of protein is stabilized by hydrogen bonds. Tertiary structure is stabilized by hydrophobic interaction, electrostatic interaction and disulphide bonds. Similarly, quaternary structure is stabilized by non-covalent interactions and disulphide bonds. So, each structure of protein is stabilized by different types of bonds.