Chapter 312 Roots

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Chapter 31-2 Roots
Austin, Kyle, Greg
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Table Contents
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What are Roots?

• Roots are underground parts of a plant. They
  anchor the plant in the ground. Roots absorb
  water and minerals from the surrounding soil.
  They then transport these materials to the base
  of the stem. Some plants like carrots also store
  food in their roots. Depending on the surface
  area of the roots the amount of nutrients and
  minerals varies.

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Adventitious Roots

• Adventitious roots are roots that grow from stems
  and leaves.
• Corn, orchids, ivy, vines are examples of
  Adventitious roots.
• Ivy and vines get nutrients and minerals from the
  surrounding air.

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Taproots

• A taproot is a root in which the first root
  becomes the largest root.
• Carrots and certain trees have taproots.
• Taproots rarely penetrate the ground more than a
  meter or two.
• A few species such as Cottonwoods have roots that
  grow up to 164 feet that touch underground water
  supplies.

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Fibrous Roots
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Primary Growth in Roots
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Secondary Growth in Roots
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Root Functions