BI-731
Role of chlorophyll
Biology · Secondary 3 · Easy · Role of chlorophyll
A leaf is tested for starch at midday. Before adding iodine solution, the leaf is boiled in water and then placed in hot ethanol.
What is the purpose of placing the leaf in hot ethanol?
What is the purpose of placing the leaf in hot ethanol?
- To kill the cells so photosynthesis stops
- To remove chlorophyll so the iodine colour is visible
- To supply oxygen for respiration
- To dissolve any starch present
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