Experiment to show the starch content of a leaf. A fresh leaf (at left) is boiled in water for 30 seconds then in boiling ethanol for a few minutes. This removes most of the colour (centre). Iodine solution is added from a pipette. Those parts of the leaf containing starch turn blue-black (starch iodide, right).
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Details
Creative#:
TOP15985749
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
N/A
Right to Privacy:
No
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