BI-1416
Food tests
Biology · Secondary 4 · Medium · Food tests
A student tests a food sample and obtains these results:
1. Biuret test turns purple.
2. Benedict's solution turns orange after heating.
3. Iodine solution remains brown.
4. Ethanol followed by water forms a cloudy emulsion.
Which nutrients are present in the food?
1. Biuret test turns purple.
2. Benedict's solution turns orange after heating.
3. Iodine solution remains brown.
4. Ethanol followed by water forms a cloudy emulsion.
Which nutrients are present in the food?
- protein, reducing sugar and fat
- protein and starch only
- reducing sugar and starch only
- starch and fat only
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