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BIO NMDCAT Conjugated molecules
nmdcat.online July 3, 2026

54. The biochemical function of the protein component (apolipoprotein) within a lipoprotein particle is to

A. Act as an enzyme or a ligand for specific cell receptors
✓
B. Synthesize cholesterol molecules directly from water
C. Dissolve completely to release fats into the stomach lumen
D. Form covalent cross-links with the DNA of target tissues

📝 Explanation

Apolipoproteins act as structural scaffolding, activate lipid-processing enzymes, and serve as cell-surface ligands for target tissue receptors.

📖 Additional Information

  • Act as an enzyme or a ligand for specific cell receptors
  • Synthesize cholesterol molecules directly from water
  • Dissolve completely to release fats into the stomach lumen
  • Form covalent cross-links with the DNA of target tissues

Apolipoproteins act as structural scaffolding, activate lipid-processing enzymes, and serve as cell-surface ligands for target tissue receptors.

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