Question

What happens when a primary structure forms a secondary structure? Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer. Terms may be used once, more than once, or not at all. Reset Help carboxylic acid a helix When atoms in the backbone of a protein or peptide form within a single or between chains, a secondary structure results. The two most common secondary structures are the and the hydrogen bonds amide bonds B-pleated sheet polypeptide amino

Answer 1

answer : when atoms in the backbone of a protein or peptide form hydrogen bond within a single polypeptide or between amide bond chain a secondary structure results .the two most common secondary structure are the $\alpha helix$ and the $\beta pleated sheet$

Explanation: there are 4 different level of protein structure

i) primary structure:it refers to the sequence of amino acid present in a polypeptide which are joined together by amide bond (NH-CO)

ii) Secondary structure : Because of presence of OH and amine functional groups there is always a chance of hydrogen bonding so to favour this folding of protein occur and the so obtained is secondary structure

iii)tertiary structure : 3 dimensional folding of the protein due to side chain interaction

iv) quaternary structure:protein consisting  of more than one amino acid chain