Q46 / 150 · MHT CET 2026 (11 April Shift 1) · Chemistry
The secondary structure of protein is determined by
- Aco-ordinate bond
- Bcovalent bond
- Cionic bond
- Correct answerDhydrogen bond
Solution
The secondary structure of a protein refers to the shape in which a long polypeptide chain can exist.
They are found to exist in two different types of structures, namely $\alpha$-helix and $\beta$-pleated sheet structures.
These structures arise due to the regular folding of the backbone of the polypeptide chain due to hydrogen bonding between the $-\text{C}=\text{O}$ and $-\text{NH}-$ groups of the peptide bonds.
Therefore, the secondary structure of a protein is determined by hydrogen bonds.
Answer: hydrogen bond
They are found to exist in two different types of structures, namely $\alpha$-helix and $\beta$-pleated sheet structures.
These structures arise due to the regular folding of the backbone of the polypeptide chain due to hydrogen bonding between the $-\text{C}=\text{O}$ and $-\text{NH}-$ groups of the peptide bonds.
Therefore, the secondary structure of a protein is determined by hydrogen bonds.
Answer: hydrogen bond
Hence, the correct answer is option: 'D'.