NEET 2016 Phase 2 · BiologyEnzymesPrevious Year Question
A non – proteinaceous enzyme is
Answer: (B) Ribozyme. Answer: (B) Ribozyme.
- A.Lysozyme
- B.Ribozyme✓
- C.Ligase
- D.Deoxyribonuclease
Correct Answer
(B) Ribozyme
Solution & Explanation
Answer: (B) Ribozyme. Solution: Almost all enzymes are proteins, but some nucleic acids (RNA) also act as biocatalysts; these non-proteinaceous enzymes are called ribozymes. Lysozyme, ligase and deoxyribonuclease are all proteinaceous enzymes, so only the ribozyme is non-protein in nature. NCERT Reference: Ch 9, p.112, line ~38 — "There are some nucleic acids that behave like enzymes. These are called ribozymes"
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