Plant Anatomy Roots - PowerPoint PPT Presentation

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Plant Anatomy Roots

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Plant Anatomy Roots By: Becky McGuire ... monocot: one seed leaf (cotyledon) ex. Corn, grass 2. dicot: two seed leaves ex. Beans, trees B. Gymnosperms: ... – PowerPoint PPT presentation

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Title: Plant Anatomy Roots


1
Plant AnatomyRoots
By Becky McGuire
2
Plant Layout
  • A.           Roots
  • B.            Stems
  • C.            Leaf
  • D.           Flower

3
Plant Classification
  • A.  Angiosperm produces seeds enclosed in a
    fruit
  • Ex corn, deciduous trees
  • 1.  monocot one seed leaf (cotyledon)
  • ex. Corn, grass
  • 2.  dicot two seed leaves
  • ex. Beans, trees
  • B. Gymnosperms produces seeds enclosed in cones

4
Root Functions
  • 1. anchor plant
  • 2. absorb water and nutrients
  • 3. stores food

5
Root systems
  • 1. primary root short-lived, develops from
    embryo
  • 2. secondary root branches from primary root,
    fibrous root, becomes primary root
  • 3. root hairs extensions reach between soil
    particles absorbs water and nutrients needs
    care when transplanting

6
Root types
  • 1.  taproots primary roots reach deep into
    soil
  • ex. Carrot, dandelions, oak
  •  
  • 2.  fibrous no real primary roots many fine
    roots, spread out at soil surface
  • ex. Annuals, grasses, shrubs

7
Root types, continued
  • 1.  fleshy become food reservoirs, store
    surplus food
  • ex. Carrots, turnips, beets
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