Question

The main structural feature of proteins is

Options

• Ether linkage

• Ester linkage

• Peptide linkage

• All the these above

Answer 1

Peptide linkage

Explanation:

Multiple amino acids within a protein are linked together by peptide bonds, forming a long chain. A biochemical reaction extracts a water molecule as it joins the amino group of an amino acid to the carbonyl group of a neighbouring amino acid to form peptide bonds.