- Tropism: A biological phenomenon where a plant grows or bends in response to an external stimulus, such as light, gravity, or water.
- Positive tropism: Growth toward the stimulus. Negative tropism: Growth away from the stimulus.
- A stimulus is any detectable change in the environment that triggers a response in an organism.
- Yes, humans can manipulate plants to grow differently by controlling environmental factors like light direction, water placement, or using growth hormones.
- Phototropism: “Photo” means light. Definition: Growth or movement of a plant in response to light.
- Gravitropism: “Gravi” means gravity. Definition: Growth or movement of a plant in response to gravity.
- Hydrotropism: “Hydro” means water. Definition: Growth or movement of a plant in response to water.
- Thigmotropism: “Thigmo” means touch. Definition: Growth or movement of a plant in response to touch or physical contact.
Parent Tip: Review the logic above to help your child master the concept of tropism worksheet.
