Question

2what is phototropism? Give Examples​

Answer 1

Answer:

Phototropism is defined as the orientation of the plant or other photosynthesizing organisms in response to lightPhototropism Examples

Sunflower is a highly phototropic plant. They grow towards the sun and are also seen tracking the movement of the sun throughout the day. That is, the flower keeps changing its direction with the movement of the sun. Sunflower requires more light for its growth and survival.

Answer 2

Answer:

Phototropism is the growth of an organism in response to a light stimulus. Phototropism is most often observed in plants, but can also occur in other organisms such as fungi. The cells on the plant that are farthest from the light have a chemical called auxin that reacts when phototropism occurs.

Ex: Positive phototropism- Response of plant towards the light source. Example include sunflower. Negative phototropism- Plant grows opposite to the light source. Example include Arabidopsis inflorescence.