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

Testing for biological molecules — practice question

A student performed four biochemical tests on a food sample. emulsion: cloudy Benedict’s: yellow biuret: purple iodine: yellow Which conclusion is supported by these results?

  • AFat is not present.
  • BGlucose is present.
  • CProtein is present.
  • DStarch is present.

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI