What is significance of unidirectional light in experiment of Phototropism.
Answers
Answer:
This is phototropism in action. Darwin correctly concluded that plants are able to “see” light using the tips of the plant shoots, rather than through the stalks. ... Normally, plants growing with an unshaded light source will grow straight up towards the sun because auxin is evenly distributed all around the shoot.
Answer:
"Phototropism":
Growth is the response to a light stimulus called phototropism. The cells of the plants react with auxin which is a chemical substance present in light therefore, shoots are grown up towards the light.
Activity:
Fill with water a conical flask.
Cover the flask's neck with a wire mesh.
Keep on the wire mesh two or three freshly sprouted beam seeds.
Take a one-sided open cardboard box.
Keep the flash in the box so that the open side of the box faces light from the window.
Then we observed shoots grown up towards the light and roots are away from the light.