Chapter 12 Science Vocab

1234567891011121314
Across
  1. 3. Hormone that increases rate of cell division; found in root tips
  2. 7. Hormone that increases plant growth, especially phototropism
  3. 8. plants that require 12 or more hours of darkness for flowering to begin
  4. 10. Hormone that increases rate of cell division
  5. 12. response of a plant to touch
  6. 13. A change in an environment that causes a response
  7. 14. a response of plant growth toward or away from the stimuli
Down
  1. 1. plants that are not affected by the # of hours of darkness
  2. 2. plant's response to the # of hours of darkness
  3. 4. Plants that flower when exposed to 10-12 hours of darkness
  4. 5. substances that act as the chemical messenger in plants
  5. 6. Hormone that increases plant growth, help ripen fruit
  6. 9. response of a plant to gravity
  7. 11. growth of a plant toward or away from light