CHAPTER 12 SECTION 13 PAGES 270283

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CHAPTER 12SECTION 1-3 PAGES 270-283

• PLANTS
• Unitedstreaming Classification of plants 5.26
• Characteristics of plants .37

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PLANT CHARACTERISTICS

• 1. Make their own food.
• 2. Cuticle (waxy layer that coats and protects
  the stems, leaves)
• 3. Cell walls
• 4. Reproduce by spores and sex cells

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MAIN GROUPS OF PLANTS
Nonvascular
Vascular
No seeds
Seeds
Mosses and liverworts
Non- flowering
Flowering
Ferns, Horsetails, Club mosses
Gymnosperm Conifers
Angiosperm Flowering plants and trees
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• Unitedstreaming Where plants live 1.56

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PLANTS WITHOUT PLUMBING

• Called nonvascular plants.
• They dont have pipes to transport water.
• Water is transferred by diffusion or osmosis.
• Examples mosses, and liverworts

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MOSSES

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LIVERWORTS

• Unitedstreaming Mosses, liverworts .50

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NONVASCULAR SEEDLESS PLANTS

• 1. Small
• 2. Grow on soil, bark of trees, and rocks
• 3. No vascular system so grow in wet areas.
• 4. Lack roots, stems, and leaves but have
  structures that do those jobs.
• 5. They reproduce by spores.

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NONVASCULAR SEEDLESS PLANTS

• Examples mosses and liverworts
• Unitedstreaming Spore producers 2.34

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ROLE OF FERNS, MOSSES AND LIVERWORTS

• 1. First plants to live in a new environment,
  lie newly exposed rocks.
• 2. When they die, they form a layer of soil.
• 3. They hold the new soil in place and prevent
  soil erosion.

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PLANTS WITH PLUMBING

• Vascular plants have tissues that deliver water
  and nutrients to the plant.
• Examples
• Ferns, club mosses
• Flowering plants and trees.
• Unitedstreaming Vascular 2.04

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VASCULAR PLANTS

• TWO GROUPS
• SEEDLESS
• This group does not produce
  seeds.
• SEEDS
• This group produces seeds to
• reproduce.

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VASCULAR PLANTS SEEDLESS PLANTS

• EXAMPLES
• 1. Grow in moist, tropical areas.
• 2. They help prevent erosion.
• 3. They reproduce by producing spores.
• Examples Ferns, horsetail, and club mosses
• Unitedstreaming Horsetails, ferns 1.31

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VASCULAR PLANTS SEEDLESS

• Ferns

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VASCULAR PLANTSSEEDLESS

• Horsetails Club Mosses

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VASCULAR PLANTSSEEDS

• Seed develops after fertilization.
• Seed has 3 parts
• young plant
• stored food
• tough seed coat
• Draw and label the picture of a seed on page 279.
• Unitedstreaming seed formation 1.41

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VASCULAR PLANTSSEEDS

• Two groups of vascular plants that produce seeds.
• Nonflowering -- gymnosperms
• Flowering -- angiosperms

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VASCULAR PLANTSSEEDS GYMNOSPERMS

• DESCRIPTION
• 1. The seeds are not enclosed in a fruit.
• 2. The word gymnosperm means naked fruit.
• IMPORTANCEThe wood is used for building and the
  sap is used for resin that is used in soap,
  turpentine, paint, and ink.

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VASCULAR PLANTSSEEDS NONFLOWERING

• CONIFERS

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VASCULAR PLANTSSEEDS NONFLOWERING

• GINKGO

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VASCULAR PLANTSSEEDS NONFLOWERING

• CYCAD

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ANGIOSPERMS SEED PLANTS WITH FLOWERS

• 1. Most abundant
• 2. Found in every environment on
• land
• 3. All vascular
• 4. Produce flowers and fruits.
• Unitedstreaming seed producers 1.59
• Higher plants 2.03

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ANGIOSPERMS FLOWERS

• 5. Flowers help with reproduction of the plant
  by providing methods of pollination.

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ANGIOSPERMS FLOWERS

• 6. Fruits help with reproduction by ensuring the
  survival of the seed by protecting it.
• Examples peach pits and apple seeds
• 7. Fruits allow the spread of the seed by the
• wind and by animals
• Examples wind spreads seeds like dandelions,
• bears spread seeds in their scat, and some burs
  stick to fur.

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VASCULAR PLANTSSEEDSFLOWERING

• Any plant that has flowers.
• Unitedstreaming gym ang 1.24

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ANGIOSPERMSIMPORTANCE OF FOOD

• 1. They are the bottom of the food pyramid --
  producers.
• 2. Major food crops are angiosperms, for
  example wheat, corn, and rice

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ANGIOSPERMSOTHER IMPORTANCE

• 3. Other products furniture, toys, clothes,
  medicines, cork, rubber and perfume oils

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• The end.