BI-1325
Food tests
Biology · Secondary 4 · Medium · Food tests
A student tests a food sample. The results are:
• Benedict’s test: remains blue
• Biuret test: turns lilac
• Ethanol emulsion test: remains clear
• Iodine test: remains yellow‑brown
Which conclusion is correct?
• Benedict’s test: remains blue
• Biuret test: turns lilac
• Ethanol emulsion test: remains clear
• Iodine test: remains yellow‑brown
Which conclusion is correct?
- Only protein is present
- Protein and fat are present
- Protein and starch are present
- Protein and reducing sugar are present
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