BI-1223
Food tests
Biology · Secondary 4 · Medium · Food tests
In an experiment, a student tests for starch in a leaf using iodine solution. Which observation correctly shows that starch is present?
- The leaf turns blue-black where iodine is applied.
- The leaf turns brick-red where iodine is applied.
- The iodine solution remains yellow-brown on the leaf.
- The leaf turns purple where iodine is applied.
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