Question

Define phototropism, with an example? ​

Answer 1

Answer:

Explanation:

Positive phototropism is growth toward a light source, and negative phototropism is growth away from a light source. Plant roots tend to exhibit negative phototropism, because they need to grow deeper into the ground for plant stability, water, and nutrients.

Answer 2

Answer:

phototropism:-

“Photo” means light, and “tropism” means turning. Phototropism is the phenomenon by which the plant bends in the direction of light. Light is required by the plants to stimulate energy production by the process of photosynthesis.The hormone called auxins that are present in the cells, respond to photosynthesis and react to produce more protein and generate energy for the plant.