Botany Roots

  1. roots are 1 of 3 vegetative organs that may comprise over 50% of plant
  2. Common functions of roots
    • anchorage¬†
    • absorption of water and minerals
    • conduction
    • storage of nutrients and water
    • survival during harsh conditions
  3. Taproot system
    main root develops from embryonic root
  4. Fibrous root system
    no main root
  5. Adventitious roots
    • produced from stems or leaves, not the embryonic root.¬†
    • above ground
  6. Top to bottom root
    • maturation
    • elongation
    • cell division
    • root cap
  7. Cortex
    • between epidermis and vascular cylinder
    • loosely packed parenchyma
    • storage site
  8. Vascular Cylinder
    • center of root
    • transport to and from stem
  9. Branch roots originate in the pericycle and grow out through the cortex
  10. Root nodules
    • nitrogen fixed bacteria
    • take nitrogen and provide to plant in exchange for carbs
  11. Mycorrhizal fungi
    inside cortex, provide water and soil minerals to plants in exchange or carbs
Author
jo73
ID
315815
Card Set
Botany Roots
Description
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Updated