BI-2
Food tests
Biology · Secondary 3 · Medium · Food tests
A food sample is tested with Benedict’s solution, Biuret solution and ethanol followed by water.
Results:
• Brick-red precipitate with Benedict’s solution.
• Purple colour with Biuret solution.
• No cloudy emulsion after adding ethanol and water.
Which nutrients are present in the food sample?
Results:
• Brick-red precipitate with Benedict’s solution.
• Purple colour with Biuret solution.
• No cloudy emulsion after adding ethanol and water.
Which nutrients are present in the food sample?
- Reducing sugar and lipid
- Reducing sugar and protein
- Protein and lipid
- Reducing sugar, protein and lipid
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