Plant Response

• Tropism - is a plant's directional growth response to an external stimulus, such as light, gravity, or touch.
• Phototropism - plant's growth response to light, which is mediated by the hormone auxin.
• Geotropism - plant's growth response to gravity, which helps the plant to orient itself properly in relation to the ground.
• Thigmotropism - plant's growth response to touch, which can help the plant to find support and climb.
• Hydrotropism - plant’s growth response to water, where it grows near a source of water.