BI-2159
Food tests (practical)
Biology · Secondary 4 · Easy · Food tests (practical)
A student sets up an experiment to test for the presence of starch in a leaf. Which step must be done before adding iodine solution to the leaf?
- Boil the leaf in alcohol to remove chlorophyll.
- Rinse the leaf in cold water to remove starch.
- Soak the leaf in glucose solution to provide energy.
- Add Benedict’s solution to the leaf to remove sugars.
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