BI-51
Food tests
Biology · Secondary 3 · Easy · Food tests
A student adds iodine solution to a leaf that has been boiled in alcohol and then rinsed in water. The leaf turns blue-black. What does this result show?
- Starch is present in the leaf.
- Glucose is present in the leaf.
- Protein is present in the leaf.
- Fat is present in the leaf.
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