BI-857
Photosynthesis equation
Biology · Secondary 3 · Medium · Photosynthesis equation
A student tests a leaf for starch after it has been kept in the dark for 24 hours and then exposed to light for 3 hours. Which step must be done before adding iodine solution?
- Rinse the leaf in cold water only
- Boil the leaf in alcohol to remove chlorophyll
- Crush the leaf and mix with Benedict’s solution
- Soak the leaf in limewater to remove carbon dioxide
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