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Chemistry Easy CSS Uploaded: 04 Sep 2026

Enzymes are biological catalysts primarily made of:

  • A Lipids
  • B Nucleic acids
  • C Carbohydrates
  • D Proteins
Correct Answer: Option D — Proteins
Explanation:
Enzymes are biological catalysts made predominantly of proteins that speed up biochemical reactions by lowering activation energy, and their specific three-dimensional shape determines which substrate molecules they can act upon.
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