Starch content of leaves

Starch content of leaves

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Caption: 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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Keywords: analysis, biological, biology, botanical, botany, chemical, chemistry, cut out, cut-out, cutout, demonstration, distribution, experiment, group, iodine, laboratory, leaf, leaves, no-one, nobody, reaction, school science, science education, sequence, solution, starch content, starch iodide, test, three, trio, white background

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