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Chemistry Medium NTS Uploaded: 04 Sep 2026

Which biomolecule is the primary source of stored energy in the human body?

  • A Carbohydrates
  • B Vitamins
  • C Proteins
  • D Fats (lipids)
Correct Answer: Option D — Fats (lipids)
Explanation:
While carbohydrates provide immediate energy, fats (lipids) serve as the primary long-term energy storage molecules in the human body, yielding roughly twice the energy per gram compared to carbohydrates or proteins.
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