AP BIOLOGY

Detailed explanation-1: -Gravitropism. It is a type of tropism where plants show some growth in response to gravity. Stems are negative to the gravitropism while roots are positive to the gravitropism.

Detailed explanation-2: -Geotropism, which is sometimes called gravitropism, refers to directional plant growth in response to gravity. Plant shoots usually grow upward against the pull of gravity.

Detailed explanation-3: -Gravitropism, the growth of roots and shoots toward or away from the direction of gravity, has been studied for centuries. Such studies have not only led to a better understanding of the gravitropic process itself, but also paved new paths leading to deeper mechanistic insights into a wide range of research areas.

Detailed explanation-4: -Gravitropism is an important plant growth response to the environment that directs shoots upward and roots downward, thereby allowing each organ to reach environments that are adequate for performance of their primary functions.

Detailed explanation-5: -For instance, the roots of the plants grow towards the gravitational field whereas the stem grows away from the gravitational field. The downward growth of roots is an example of a positive gravitropism whereas the upward growth of roots is an example of negative gravitropism.