COMEDK20269 May 2026Morning ShiftChemistryBiomoleculesActual
The secondary structure of protein consists of:
Options
- AA folding of the polypeptide chains which exists as fibrous and globular
- BTwo or more polypeptide chains which exist as sub-units
- CA long polypeptide chain which exists -helix and -pleated sheet structure
- DA long chain of amino acids linked with each other in a specific sequence
Correct answer
C. A long polypeptide chain which exists -helix and -pleated sheet structure
Step-by-step solution
The primary structure of a protein refers to the specific sequence of amino acids in the polypeptide chain. The secondary structure refers to the local folded structures that form within a polypeptide due to hydrogen bonding between the backbone amide and carbonyl groups. The most common types of secondary structures are the -helix and the -pleated sheet. The tertiary structure refers to the overall three-dimensional folding of the entire polypeptide chain, which gives rise to fibrous and globular shapes. The quate