14-1 Plant Anatomy


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This Power Point Presentation allows students to get the basic information about the 5 parts of a flowering plant.

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14-1 Plant Anatomy

  1. 1. 14.0 Describe Principles of Plant Growth Production 14.1 Identifying plant parts and their function.
  2. 2. Why are plants important? <ul><li>Provide oxygen </li></ul><ul><li>Prevent famine </li></ul><ul><li>Provide medicine </li></ul>
  3. 3. How are plants used in agriculture? <ul><li>Crops </li></ul><ul><ul><li>Cereal Grains - wheat, rice </li></ul></ul><ul><li>Ornamental </li></ul><ul><ul><li>Landscape design - indoors and outdoors </li></ul></ul><ul><li>Medicine </li></ul><ul><ul><li>Biotechnology, possible cures </li></ul></ul>
  4. 4. What are 5 major parts of a flowering plant? <ul><li>Leaves </li></ul><ul><li>Stems </li></ul><ul><li>Roots </li></ul><ul><li>Flower </li></ul><ul><li>Fruit </li></ul>
  5. 5. Why are leaves important? <ul><li>Collect light </li></ul><ul><li>Site of photosynthesis </li></ul><ul><li>Main site of transpiration </li></ul>
  6. 6. What are the parts of a leaf? <ul><li>Blade: helps with collecting the sun’s rays </li></ul><ul><li>Veins: transport water and nutrients </li></ul><ul><li>midrib: central vein </li></ul><ul><li>Petiole:point of attachment to the stem </li></ul><ul><li>Nodes: will grow if the petiole is removed </li></ul>
  7. 7. Why is the stem important? <ul><li>Produce and support new leaves </li></ul><ul><li>Transport water and nutrients to and from the roots </li></ul><ul><li>Storage of nutrients </li></ul>
  8. 8. What are the parts of a stem? <ul><li>Terminal bud: point of new growth </li></ul><ul><li>Lateral bud: point of new growth </li></ul><ul><li>Internode: in-between points of growth </li></ul>Leaf scar Bud scale scar
  9. 9. Why are the roots important? <ul><li>Provide anchor for the plant </li></ul><ul><li>Absorb water and nutrients </li></ul><ul><li>Storage of nutrients and water </li></ul>
  10. 10. What are the three types of roots? <ul><li>Taproot: absorbs water deep in the ground -carrots, pecan trees </li></ul><ul><li>Fibrous roots: roots stay close to top soil - tomato, bedding plants </li></ul><ul><li>Adventitious: helps plant climb or anchor - ivy, strawberries, some grasses. </li></ul>
  11. 11. What are the parts of a root? <ul><li>Primary root: the first root to grow </li></ul><ul><li>Secondary roots: branch off of the primary root </li></ul><ul><li>Root hairs: these account for 95% of water absorption </li></ul>
  12. 12. Why are flowers important to the Plant? <ul><li>Flowers serve as the reproductive organ of the plant </li></ul>
  13. 13. Why is Fruit important to plants? <ul><li>The site of seed production, fruit also plays a role in the dissemination of the seeds </li></ul>
  14. 14. Parts of a Flower
  15. 15. Parts of a Flower <ul><li>Stamen – Male Part </li></ul><ul><ul><li>Anther - pollen-producing structure </li></ul></ul><ul><ul><li>Filament - stalk that supports the anther </li></ul></ul><ul><li>Pistil – Female Part </li></ul><ul><ul><li>Stigma - place where sticky pollen grains are deposited </li></ul></ul><ul><ul><li>Style - tube where the pollen grains travel from the stigma to the ovary </li></ul></ul><ul><ul><li>Ovary - base of the pistil, where the pollen germinates with the ovules, this becomes the fruit </li></ul></ul><ul><ul><li>Ovules - individual eggs, these are the plant seeds </li></ul></ul>
  16. 16. Flower Parts <ul><li>Petal – modified leaves that serve to attract insects for pollination </li></ul><ul><li>Sepal – protects the inner parts of the flower bud from rain, mechanical injury and insects </li></ul><ul><li>Receptacle – the base where all the flower structures are attached </li></ul>