BI-180
Food tests
Biology · Secondary 3 · Medium · Food tests
A food sample is tested with Biuret solution, Benedict’s solution, ethanol emulsion and iodine solution. The results are:
- Biuret: purple
- Benedict’s (after heating): remains blue
- Ethanol emulsion: white emulsion
- Iodine: yellow-brown
What does the food sample contain?
- Biuret: purple
- Benedict’s (after heating): remains blue
- Ethanol emulsion: white emulsion
- Iodine: yellow-brown
What does the food sample contain?
- Fat and reducing sugar only
- Fat and protein only
- Fat, protein and reducing sugar
- Protein and starch only
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