NEET BIOLOGY

Detailed explanation-1: -Gravitropism, also called geotropism, where geo-means the earth, and tropism refers to turning, is the growth of a plant’s organ or change in the direction of its growth in response to gravity.

Detailed explanation-2: -Geotropism (also called gravitropism) is the directional growth of an organism in response to gravity. Roots display positive geotropism when they grow downward, while shoots display negative geotropism when they grow upward. Among the first scientists to study geotropism was Charles Darwin.

Detailed explanation-3: -Geotropism is a similar occurrence to phototropism where the plant exhibits directional growth in response to gravity.

Detailed explanation-4: -Key Points. Positive gravitropism occurs when roots grow into soil because they grow in the direction of gravity while negative gravitropism occurs when shoots grow up toward sunlight in the opposite direction of gravity.

Detailed explanation-5: -Word origin: gravi-(relating to gravity) + tropism. Synonym(s): geotropism.