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BIO NMDCAT Biological Importance of Water
nmdcat.online June 27, 2026

The ability of water to form a “liquid crystalline” structure around a biomolecule, such as a DNA helix, is a crucial aspect of water’s function as a

A. Lubricant and transport medium
B. Temperature buffer and insulator
C. Structural stabilizer of macromolecules
✓
D. Reactant in hydrolytic digestion

📝 Explanation

The organization of water molecules in a specific, ordered pattern around macromolecules (like the spine of hydration in DNA) is a form of structural water. These water molecules are not just a passive background solvent but are integral to the maintenance and function of the 3D structure.

📖 Additional Information

  • Lubricant and transport medium
  • Temperature buffer and insulator
  • Structural stabilizer of macromolecules
  • Reactant in hydrolytic digestion

The organization of water molecules in a specific, ordered pattern around macromolecules (like the spine of hydration in DNA) is a form of structural water. These water molecules are not just a passive background solvent but are integral to the maintenance and function of the 3D structure.

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