Plant Hormones - Tropisms & Auxins #52

The video tutorial explains how plants respond to environmental stimuli using hormones, particularly auxins. Unlike animals, plants rely on hormones to sense light, gravity, and touch, enabling them to grow towards light and anchor themselves in the soil. Auxins, a group of plant hormones, play a crucial role in controlling growth at the tips of shoots and roots. The video covers phototropism (response to light) and geotropism (response to gravity), detailing how auxins accumulate on shaded or lower sides, affecting growth rates and causing curvature in shoots and roots. The tutorial also discusses how roots respond to light exposure and gravity, emphasizing the opposite effects of auxins in roots compared to shoots.

Describe the process of phototropism in plants.

What happens to auxins when a plant is exposed to light?