B) Growing Plants

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B) Growing Plants

  1. 1. Reproduction Asexual Sexual Only ONE organism producing offspring. Offspring identical to parent plant. No variety within species Two organisms producing offspring. Promotes variety and therefore biodiversity.
  2. 2. Flowering Plants Most flowers have both male and female parts. These sexual parts produce sex cells called gametes. Male gamete= Female gamete= POLLEN EGGS
  3. 3. Flower Structure Petals Anther Filament Nectary Sepal Ovary Style Stigma Stamen }
  4. 4. Pollen Grains
  5. 5. Fertilisation Pollen Tube
  6. 6. Seed Formation <ul><li>After fertilisation (the male and female nuclei fusing): </li></ul><ul><li>-the ovule forms a seed </li></ul><ul><li>-the ovary forms a juicy fruit or a dry pod/nut </li></ul><ul><li>This seed will drop from the parent plant and </li></ul><ul><li>when the conditions are right, will germinate </li></ul><ul><li>and produce a new plant. </li></ul>
  7. 7. Seed Dispersal Seeds need to be able to move to areas away from the parent plant. This allows plants to colonise new areas and reduces competition between young plants for water and space. Seeds come in all different shapes and sizes to use wind, water and animals for dispersal.
  8. 8. Wind Dispersal Conebush Dandelion Honesty Sycamore Japanese Maple
  9. 9. Animal External Devils Claw Bur Clover Hounds Tongue Bidi Bidi
  10. 10. Animal Internal Yew Tree Blackberries Star Fruit Rowan Tree
  11. 11. Self dispersal/ Explosion Corn Poppy Witch Hazel Wisteria pods Gorse
  12. 12. Water Coconut Mangrove Poppy seeds in a falling water drop
  13. 13. Plant Lifecycle Adult plants produce flowers Seed Formation Fertilisation Germination Pollination Seed Dispersal Seedling grows
  14. 14. Grafting

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