Plant Responses

3. Rapid elongation of stems during spring
6. Movement in response to a stimulus but is independent of the location of the stimulus
9. (IAA)Natural auxin that stimulates development of fleshy fruit
11. A bluish, light-sensitive pigment that monitors changes in day length
13. Nastic movement in response to touching a plant
16. Low-temperature stimulation of flowering
20. Plants that only live for two years and produce flowers/seeds in second year
22. Chemical messengers that affect a plant's ability to respond to the environment
23. Plants growth in response to gravity
24. Response of a plant to grow either away or towards an environmental stimulus
25. Also known as heliotropism; The motion of leaves or follows following the sun's movement across the sky
28. Promote cell division in plants

1. Synthetic hormone used to help ripen fruits by breaking down into ethylene gas
2. Ripens fruits
4. Flowers when days are short/nights are long
5. Occurs when nights become longer and plants no longer produces chlorophyll
7. Produced in small quantities by the plant that causes them to grow abnormally tall
8. Response of a plant to grow either away or towards a light source.
10. Plant's growth response to touching a solid object
12. Plant's response to changes in length of days and nights
14. Plant growth in response to a chemical
15. Mixture of 2,4-D and another auxin used to defoliate jungles during the Vietnam War
17. Flowers regardless of day length
18. (ABA) Inhibits other hormones (like IAA) and helps to keep plant in dormancy
19. Response to daily light/dark cycles
21. Detachment of leaves, flowers, and fruits
26. Hormones involved in plant-cell elongation, shoot and bud growth, and rooting
27. Flowers when days are longer/nights are shorter