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ChemistryJEE Main 21 Jan 2026, Shift 2·Q11·MCQ·Easy–moderate

Biomolecules · Proteins enzymes and nucleic acids

The correct statements are:
  • (A)Activation energy for enzyme catalysed hydrolysis of sucrose is lower than that of acid catalysed hydrolysis.
  • (B)During denaturation, secondary and tertiary structures of a protein are destroyed but primary structure remains intact.
  • (C)Nucleotides are joined together by glycosidic linkage between C1_1 and C4_4 carbons of the pentose sugar
  • (D)Quaternary structure of proteins represents overall folding of the polypeptide chain.
Choose the correct answer from the options given below:
  1. (1)A, C and D Only
  2. (2)A, B and D Only
  3. (3)A and B Only
  4. (4)B and C Only

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