Tropisms

Tropisms

Have you noticed how plants seem to "move" toward sunlight or how roots always grow downward? This happens because of tropisms—the ways plants respond to environmental stimuli like light, gravity, water, or touch. Tropisms help plants survive by guiding their growth in the right directi...

Imagine placing a potted plant near a window. After a few days, you notice that its stem leans toward the sunlight. Why does this happen?

This movement, called tropism, helps plants find light, water, and support. Depending on the plant's reaction, there are different types of tropisms.

First is phototropism, which occurs when plants...