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

Regarding the process of hydrolysis in biological systems, the role of water is to

A. Act as a catalyst to speed up the reaction without being consumed
B. Provide the energy required to break a covalent bond
C. Serve as a reactant that is split to break a covalent bond in a larger molecule
✓
D. Remove heat generated during the cleavage of a polymer

📝 Explanation

Hydrolysis (hydro = water, lysis = splitting) uses water as a reactant. The bond in the polymer is broken, and the components of water (H and OH) are added to the resulting monomers. Enzymes catalyze this reaction, but water is a substrate, not a catalyst.

📖 Additional Information

  • Act as a catalyst to speed up the reaction without being consumed
  • Provide the energy required to break a covalent bond
  • Serve as a reactant that is split to break a covalent bond in a larger molecule
  • Remove heat generated during the cleavage of a polymer

Hydrolysis (hydro = water, lysis = splitting) uses water as a reactant. The bond in the polymer is broken, and the components of water (H and OH) are added to the resulting monomers. Enzymes catalyze this reaction, but water is a substrate, not a catalyst.

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