BI-1391
Food tests
Biology · Secondary 4 · Medium · Food tests
A food sample is tested with three reagents.
• Biuret test: solution turns violet.
• Benedict’s test (heated): solution remains blue.
• Ethanol emulsion test: solution remains clear with no emulsion.
What does the food sample contain?
• Biuret test: solution turns violet.
• Benedict’s test (heated): solution remains blue.
• Ethanol emulsion test: solution remains clear with no emulsion.
What does the food sample contain?
- Protein only
- Protein and reducing sugar only
- Reducing sugar and fat only
- Protein, reducing sugar and fat
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