Biology 5090 · O Level · Urinary system

Urinary system — practice question

Certain health conditions may be identified by carrying out chemical tests for protein and glucose in urine. Which row gives the outcomes for a person whose urine contains protein and glucose?

  • ABenedict’s solution: blue colour; biuret reagent: pale blue colour; ethanol: milky colour; iodine solution: yellow/brown colour
  • BBenedict’s solution: red colour; biuret reagent: mauve (purple) colour; ethanol: colourless; iodine solution: yellow/brown colour
  • CBenedict’s solution: blue colour; biuret reagent: mauve (purple) colour; ethanol: milky colour; iodine solution: blue/black colour
  • DBenedict’s solution: red colour; biuret reagent: pale blue colour; ethanol: colourless; iodine solution: blue/black colour

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