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

Testing for biological molecules — practice question

Benedict’s solution was used to test four different fruit juices, A, B, C and D. A separate sample from each juice was then hydrolysed and tested again with Benedict’s solution. Which juice has the largest mass of non-reducing sugar?

  • Abefore hydrolysis 30 mg; after hydrolysis 55 mg
  • Bbefore hydrolysis 55 mg; after hydrolysis 55 mg
  • Cbefore hydrolysis 65 mg; after hydrolysis 85 mg
  • Dbefore hydrolysis 70 mg; after hydrolysis 80 mg

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