Plant Responses

5. Response of a plant to grow either away or towards an environmental stimulus
7. Occurs when nights become longer and plants no longer produces chlorophyll
9. Hormones stimulating or inhibiting plant growth
11. Response of a plant to grow either away or towards a light source.
13. Also known as heliotropism; The motion of leaves or follows following the sun's movement across the sky
15. Movement in response to a stimulus but is independent of the location of the stimulus
16. Plant's growth response to touching a solid object
17. Chemical messengers that affect a plant's ability to respond to the environment
22. Synthetic hormone used to help ripen fruits by breaking down into ethylene gas
24. Produced in small quantities by the plant that causes them to grow abnormally tall
25. Hormones involved in plant-cell elongation, shoot and bud growth, and rooting
26. A bluish, light-sensitive pigment that monitors changes in day length
27. Rapid elongation of stems during spring
28. Flowers when days are longer/nights are shorter
29. Flowers when days are short/nights are long
30. Promote cell division in plants

1. Mixture of 2,4-D and another auxin used to defoliate jungles during the Vietnam War
2. (ABA) Inhibits other hormones (like IAA) and helps to keep plant in dormancy
3. Plant growth in response to a chemical
4. Low-temperature stimulation of flowering
6. Plant's response to changes in length of days and nights
8. Nastic movement in response to touching a plant
10. Inhibition of lateral buds due to the presence of a shoot tip nearby
12. Plants growth in response to gravity
14. (IAA)Natural auxin that stimulates development of fleshy fruit
18. Response to daily light/dark cycles
19. Ripens fruits
20. Flowers regardless of day length
21. Plants that only live for two years and produce flowers/seeds in second year
23. Detachment of leaves, flowers, and fruits