NTA Abhyas NEET2020ChemistryBiomoleculesPractice
Which type of interactions are responsible for making the α helix structure stable?
Options
- APeptide bonds between - N H 2 group and - C O groups of adjacent carbon chains
- BHydrogen bonds between - N H of amino acid in one turn with - C O of amino acid to adjacent turn
- C- O H group of one amino acid with - C O group of other amino acid on the turn
- DHydrogen bonds between adjacent amino acids
Correct answer
B. Hydrogen bonds between - N H of amino acid in one turn with - C O of amino acid to adjacent turn
Step-by-step solution
In α -helix, a polypeptide chain is stabilised by the formation of hydrogen bonds between - N H - group of amino acids in one turn with C = O group of amino acids belonging to adjacent turn..