AIIMS2013BotanyBiomolecules (B)
Assertion : All proteinecous enzymes have a three-dimensional structure. Reason : The secondary structure of protein is according to amino acid present inside the polypeptides.
Options
- AIf both assertion and reason are true and reason is the correct explanation of assertion.
- BIf both assertion and reason are true but reason is not the correct explanation of assertion.
- CIf assertion is true but reason is false
- DIf both assertion and reason are false
Correct answer
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
Step-by-step solution
The secondary structure of proteins is the development of new stearic relationships of amino acids present in the linear sequence inside the polypeptides. Some of the new relationship are of regular nature and give periodicity to the structure. There are three types of secondary structures - -helix, -pleated and collagen helix. They are held in a particular structure due hydrogen bonds between oxygen of carboxylic group (-CO group) of one amino acid residue and > NH group of another amino acid. The protein enzymes