One of the experiments in phototropism involved cutting off the tips of grass seedlings before exposing them to light from one side.The decapitated seedlings did not bend toward light.A valid conclusion from this experiment would be that

Question

Quizplus · Accepted Answer

The fact that the decapitated seedlings did not bend towards the light suggests that the tip of the grass plants is responsible for perceiving light and initiating the bending response. This is evidence that photoreceptors are concentrated in the tip of the plant, and that they are responsible for sensing light and initiating the phototropic response.

One of the Experiments in Phototropism Involved Cutting Off the Tips