Complete the foll

The directional movement of plant parts in response to stimulus light is called phototropism. The directional movement of plant parts in response to stimulus earth’s gravity is called geotropism. The directional movement of plant parts in response to water is called hydrotropism. Roots bend away from light so they are negatively phototropic. Roots bend towards water and earth’s gravity so they are positively hydrotropic and geotropic respectively. Shoot bends towards light but bends away from earth’s gravity so it is positively phototropic but negatively geotropic. It shows no response to water.