Question

What is phototropism and geotropism with labelled dia gram?

Answer 1

If you put a plant in a window, you may notice that, after a few days, it has bent toward that window. This is because the plant needs sunlight to make energy, so it grows toward the light. The growth of a plant toward any stimulus is called tropism, and the growth of a plant toward a light stimulus is called phototropism - photo means light.
And The roots are exhibiting positive geotropism, or growth with gravity, while the stem is exhibiting negative geotropism, or growth against gravity. ... Plants have organelles called statoliths, which settle at the bottom part of their cells and allow plants to sense gravity.

Answer 2

the movement of plant part in response to light is called phototropism.

the movement of plant part in response to gravity is called geotropism.