Seeds test.

  1. ____ cotyledons
  2. ____ dicot
  3. ____ dormancy
  4. ____ embryo
  5. ____ germination
  6. ____ hypocotyl
  7. ____ monocot
  8. ____ radicle
  9. ____ seed coat
  10. ____ seed
  1. embryonic root.
  2. flowering plant with one cotyledon, parallel-veined leaves and flower parts in threes.
  3. flowering plant with two cotyledons, net-veined leaves and flower parts in fours or fives.
  4. outer layer of seed.
  5. period of inactivity.
  6. plant structure with an embryo, food reserve and protective coat.
  7. portion of embryo between the radicle and cotyledons.
  8. resumption of growth of the embryo.
  9. rudimentary plant formed after fertilization.
  10. seed leaves.
  1. The two main ways to propagate plants are:
    a. seeds and spores c. sexual and asexual
    b. seeds and bulbs d. seeds and sexual
  2. List the four requirements for germination
    1. ______________________________________________________
    2. ______________________________________________________
    3. ______________________________________________________
    4. ______________________________________________________
  3. Which of these is NOT an advantage of seed dormancy?
    a. Await better environmental conditions. c. Synchronize to the environment.
    b. Disperse to new habitats by wind, water, animals. d. Avoid predators
  4. Describe two methods for breaking dormancy:
    1. _________________________________________________________________________________
    2. _________________________________________________________________________________
  5. Seed dormancy can be advantageous to a plant because it allows dispersal to new habitats by wind, water, animals. Describe an example of an dispersal agent and a plant that uses it.
  6. Leaching with water is a way to break seed dormancy. What is being leached?
    a. oxygen c. pathogens
    b. growth inhibitors d. nutrients
  7. What is a definition for "pathogen"?
    a. a disease causing organism c. bacteria
    b. protozoans d. virus
  8. Damping-off organisms are best described as :
    a. virus c. our friends
    b. fungi d. bacteria
  9. Which of these is NOT a symptom of damping-off?
    a. Seeds fail to emerge. c. Seeds are soft and mushy.
    b. Seedlings topple over. d. Stems appear cut.
  10. Where do damping-off organisms live?
    a. in the embryo c. in water
    b. in the soil d. in Mr. Rick's tea.
  11. What is the most important method for controlling damping-off?
    a. sterilized water c. good sanitation
    b. chemical sprays d. planting seeds deeply
  12. Are the plants in seed tray 1 are:
    a. monocots b. dicots
  13. Are the plants in seed tray 2 are:
    a. monocots b. dicots
  14. Describe what Mr. Rick did wrong in his demonstration.
  15. Draw and label a bean seedling. Use these words as your labels: radicle, cotyledons, hypocotyl.