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

During the digestion of starch into glucose, the specific function of water is to

A. Provide a medium for the emulsification of starch granules
B. Cleave the glycosidic bonds through a hydrolytic reaction
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C. Phosphorylate glucose to trap it inside the cell
D. Bind to the active site of amylase as a competitive inhibitor

📝 Explanation

Enzymatic digestion of starch is a hydrolysis reaction. Water molecules are used to break the α-1,4 glycosidic bonds between glucose monomers. The H from water attaches to one glucose, and the OH attaches to the adjacent glucose.

📖 Additional Information

  • Provide a medium for the emulsification of starch granules
  • Cleave the glycosidic bonds through a hydrolytic reaction
  • Phosphorylate glucose to trap it inside the cell
  • Bind to the active site of amylase as a competitive inhibitor

Enzymatic digestion of starch is a hydrolysis reaction. Water molecules are used to break the α-1,4 glycosidic bonds between glucose monomers. The H from water attaches to one glucose, and the OH attaches to the adjacent glucose.

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