Question

describe an experiment to prove that - plant leaf has starch​

Answer 1

Answer:

Starch testing

add the leaf to boiling ethanol in a water bath for a few minutes (the boiling ethanol dissolves the chlorophyll and removes the green colour from the leaf - it turns white so it is easy to see the change in colour) wash with water to rehydrate and soften the leaf and spread onto a white tile.

Answer 2

Answer:

· Starch is a white and powdery substance. It houses glucose, which plants use for food. The presence of starch in a leaf is reliable evidence of photosynthesis. That’s because starch formation requires photosynthesis. (Adult supervision required.) Starch Testing Experiment What You Need: Two plants; Beaker or glass jar; Saucepan on the stove; Ethyl alcohol

Explanation:

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