Question

The roots of a plant show what kind of tropism in response to light?

Answer 1

• Phototropism is the movement of a plant and their parts in response to light.
  
• The shoots of the plant grow towards the sunlight, but the roots of the plant grow or move away from the sunlight.
  
• When the growth of a plant or a part of a plant is towards the stimulus, it is called positive and when it is away from the stimulus, it is called negative.
  
• Hence, in this case, the shoots exhibit positive phototropism, and the roots exhibit negative phototropism.