The directional movement of a seedling, such as the root going down and the stem coming up, is a result of growth. If growth is prevented, the seedling will not display the expected movement.

The movement of a sensitive plant’s leaves is rapid and independent of growth, whereas the directional movement of a seedling is attributed to growth; if growth is hindered, the seedling will not exhibit movement.

Plants, such as the sensitive plant, respond to touch through rapid movements of their leaves, a process not involving muscle action, but rather a quick response mechanism.

Plants seem to move in response to stimuli because of directional or tropic growth. Environmental triggers like light or gravity influence the direction in which plant parts grow, creating the illusion of movement.

Tropic movements in plants are directional responses to environmental triggers such as light or gravity. Shoots exhibit positive phototropism by bending towards light, while roots show negative phototropism by bending away from light.