Question

What is the difference between heliotropism and phototropism?

Answer 1

hi mate

heliotropism - The directional growth of a plant in response to sunlight.

phototropism - the orientation of a plant or other organism in response to light either towards source of light or away from it .

pls mark me as brainliest.

Answer 2

Basically,there are no differences between heliotropism and phototropism.

- Heliotropism is a movement of plant body where the environmental stimulation for the movement is the sunlight.

- And, phototropism is a movement of plant body where the environmental simulation for the movement is light source.

- Now,the sunlight is also a type of light source.

- That's why in late 19th century the heliotropism was renamed into phototropism. And,in the present time heliotropism and phototropism are the same thing.