BI-1413
Food tests
Biology · Secondary 4 · Medium · Food tests
A student tests a food sample and obtains these results:
1. Biuret test: solution remains blue
2. Benedict's test (heated): solution turns brick-red
3. Iodine solution: remains yellow-brown
4. Ethanol emulsion test: white emulsion forms
Which nutrients are present in the food?
1. Biuret test: solution remains blue
2. Benedict's test (heated): solution turns brick-red
3. Iodine solution: remains yellow-brown
4. Ethanol emulsion test: white emulsion forms
Which nutrients are present in the food?
- fat and reducing sugar
- protein and reducing sugar
- reducing sugar and starch
- starch and fat
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