Question

write a experiment on phototropism and its structure with example ?

Answer 1

Experiment:

• Fill a conical flask with water.
• Cover the neck of the flask with a wire mesh.
• Keep two or three freshly germinated bean seeds on the wire mesh.
• Take a cardboard box which is open from one side.
• Keep the flask in the box in such a manner that the open side of the box faces light coming from a window.
• After two or three days you will notice that the shoots bend towards lights and roots away from light.
• Now turn the flask so that the shoots are away from light and roots towards light . Leave it undisturbed in this condition for a few days.
• You will notice that old parts of the shoots have changed direction .

This is an example of phototropism.

Hope it helps you mate.

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