AP BIOLOGY

Detailed explanation-1: -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-2: -Gravitropism is the ability of plants to perceive and respond to the gravity vector and orient themselves accordingly.

Detailed explanation-3: -Gravitropism (also known as geotropism) is a coordinated process of differential growth by a plant in response to gravity pulling on it. It also occurs in fungi. Gravity can be either “artificial gravity” or natural gravity. It is a general feature of all higher and many lower plants as well as other organisms.

Detailed explanation-4: -Roots grow downward, or towards the center of Earth, and away from light. These responses to external stimuli are called tropisms. Plants’ growth response to gravity is known as gravitropism; the growth response to light is phototropism. Both tropisms are controlled by plant growth hormones.

Detailed explanation-5: -Well, It is a phenomenon that is called “Gravitropism". Gravitropism is either positive which means “with gravity” or negative gravitropism which means against gravity. It is said that plant and fungi both have negative gravitropism i.e. both of them grow upwards.