Plant Anatomy Roots

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Plant AnatomyRoots
By Becky McGuire
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Plant Layout

• A.           Roots
• B.            Stems
• C.            Leaf
• D.           Flower

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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

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Root Functions

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

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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

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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

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Root types, continued

• 1.  fleshy become food reservoirs, store
  surplus food
• ex. Carrots, turnips, beets