Plant Responses

2. Specialized plastids in plant cells that store starch.
4. Light-sensitive proteins in plants that detect light and trigger phototropic responses.
5. Movements of plants in response to touch or physical stimuli.
7. Harmful substances that can damage or kill living organisms.
9. The shedding of plant parts, such as leaves, flowers, or fruits.
10. The process by which plants respond to light and change their growth and development.
14. The sense of physical contact.
15. The course along which something moves or faces.
16. The growth or movement of a plant in response to gravity.
17. The force applied to a material that can cause deformation or damage.

1. The growth of a plant away from a light source.
3. The process of increasing in size or number.
5. The growth or movement of a plant in response to touch or physical contact.
6. The deformation of a material due to an applied force.
8. The changes in plant growth and development in response to mechanical stimuli.
9. A plant hormone that regulates growth and development.
11. The growth of a plant towards a light source.
12. The growth or movement of a plant in response to light.
13. The vascular tissue in plants that transports water and nutrients.
18. Specialized organelles in plant cells that sense gravity.