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

Testing for biological molecules — practice question

A student performed four tests for biological molecules on a solution. The results are given in the table. iodine solution: orange biuret: purple Benedict’s: orange emulsion: cloudy Which molecules could be present in this solution?

  • Aglucose, starch, protein
  • Blipid, protein, glucose
  • Cprotein, starch, sucrose
  • Dstarch, protein, lipid

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