Primary proteins are also called as polypeptides because :
Primary proteins are also called as polypeptides because :
They are linear chains
They are polymers of peptide monomers
Successive amino acids are joined by peptide bonds
They can assume many conformations
Solution
Primary structure in proteins are continuous, in which successive amino acids are added with the help of peptide bond formation.
It is simplest yet generally non-Functional structure of proteins.