Properties of Biological Macromolecules

AP Biology· difficulty 3/5

disaccharide H2O monomer monomer Hydrolysis: H2O is added; bond is broken

Hydrolysis reactions are essential for digestion. Which statement BEST describes the role of water in this process?

  • A

    OH adds to one monomer and H to the other, splitting the bond

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  • B

    Water is released as a byproduct

  • C

    Water donates electrons to form a new covalent bond

  • D

    Water polymerizes the monomers further

Explanation

In hydrolysis, water is split: -OH attaches to one fragment and -H to the other, breaking the covalent linkage between monomers.

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