Question

how does the phototropism occur in plant

Answer 1

Phototropism is the growth of an organism which responds to a light stimulus. The cells on the plants that are farthest from the light have a chemical called auxin that reacts when phototropism occurs.  This causes the plants to have elongated cells on the farthest side from the light.

Answer 2

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