CH9-Plant Functions

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Across
  1. 3. poinsettias need at least 13 hours of darkness to bloom. Therefore, they are ___ plants
  2. 6. the structure that contains one or more ovules at the base of the style
  3. 9. auxins and cytokinins are the 2 horomones that most affect the ___ of a plant
  4. 11. the plant organ that demonstrates positive gravitropism
  5. 13. the entire female part of the flower
  6. 14. in ferns, this is the stage of the life cycle we most often see
  7. 16. grapevine stems climbing a wood lattice is an example of which tropism
  8. 17. the often colorful structure that helps attract insects and birds
  9. 18. gymnosperms produce spores and seeds inside ___
  10. 21. the entire male part of the flower
  11. 22. the structure that allows gametes to travel down through the style to the ovary
  12. 24. a seed ___ when the right temperature, right moisture and other conditions occur
  13. 25. the sticky top of the carpel that receives the pollen
  14. 26. these cause plant cells to grow in size, stop growing, and divide
Down
  1. 1. the pollen-producing structure on the top of the filament
  2. 2. this type of plant needs wind for fertilization so the pollen can travel from the male cones to the female cones
  3. 4. the blooming of ___ plants depends on conditions such as temperature and moisture
  4. 5. the leaflike structure around the petals that protects the developing flower
  5. 7. this plant hormone acts as an inhibitor to the other hormones
  6. 8. a plant growing toward a light source is an example of ___
  7. 10. the part of a moss plant that produces spores
  8. 12. the ovary of an angiosperm develops into a ___
  9. 13. consists of the stigma, style, and ovary
  10. 15. this plant hormone causes fruit to ripen
  11. 19. the repeating cycle of gametophyte and sporophyte structures
  12. 20. this type of plant is not affected by the length of day
  13. 23. seedless plants require ___ for reproduction