Biology 9700 · AS & A Level · Testing for biological molecules

Testing for biological molecules — practice question

During a positive test for a non-reducing sugar, a glycosidic bond is broken and two monosaccharides are produced. Which row correctly identifies the catalyst and the reactants in this reaction?

  • Acatalyst: hydrochloric acid; reactants: fructose and glucose
  • Bcatalyst: hydrochloric acid; reactants: sucrose and water
  • Ccatalyst: sucrase enzyme; reactants: fructose and glucose
  • Dcatalyst: sucrase enzyme; reactants: sucrose and water

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