PLANTS

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PLANTS

• Science
• Chapter 2, pp.80-86

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2 Main Types of Plants

• Vascular
• Non-Vascular

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non-vascular plants
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non-vascular plants

• What They Are
• Plants that dont have tubes to carry water and
  food. They dont have true roots, stems, or
  leaves. Instead, they soak up water from the
  soil.
• They grow very close to the ground
• Examples
• Algae
• Moss
• Liverworts
• hornworts

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green algae
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moss
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liverwort
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hornwort
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vascular plants
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vascular plants

• What They Are
• Plants with tubes up and down inside
• They have roots, stems, and leaves
• They can grow tall because they have tubes that
  carry food and water
• Examples
• Vegetables
• Ferns
• Flowers
• Trees
• Potted Plants

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vascular plants
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transport system
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transport system

• What It Is
• Thin tubes inside the plant
• The tubes carry water and other materials up and
  down the plant
• The tubes connect
• Roots
• Stem
• Leaves

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3 Parts of the Transport System

• Root
• Stem
• Leaf

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root
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roots
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roots
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roots
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root

• What It Is
• Usually the part underneath the soil
• Its Job
• Hold plant in the ground
• Drink in water and minerals from the soil
• For some plants
• Keep the food made by the plant in a safe place

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stem
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stem
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stem
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stem

• What It Is
• The stalk of a plant (soft stem)
• The trunk of a tree (woody stem)
• Its Job
• Support the plant so it can stay above the ground
• Move materials from the roots to the leaves
  from the leaves to the roots

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leaf
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leaf
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leaf

• What It Is
• Grows from the stem of a plant
• Its Job
• Make food for the plant

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Tissues in Roots

• Xylem
• Phloem
• Cambium

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xylem(zigh?luhm)
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xylem

• What It Is
• A tissue in the middle of a plant root
• It goes from the root to the stem
• Its Job
• Moves water and minerals from the ground through
  the root to the stem

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xylem
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xylem
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xylem
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phloem(flow?em)
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phloem

• What It Is
• A tissue around the middle of a plant root
• It goes from the stem to the root
• Its Job
• Carries sugar from the leaves down the stem and
  into the root

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phloem
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phloem
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phloem
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cambium(cam?bee?uhm)
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cambium

• What It Is
• A tissue (layer of cells) between the xylum and
  phloem
• Its Job
• Make new xylum and phloem cells

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cambium
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cambium
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cambium