Welcome back! We

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Welcome back!Were almost done

• Major Due Dates
• Plant Graphic organizer assignment
• Thurs, Jan 14th
• GMO Debate Tues, Jan 19th
• Plant Unit Test Wed, Jan 20th
• Exam Review Day Jan 21st and 22nd
• Final Exam Tues, Jan 28th

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Unit 5 Plants Anatomy, Growth Function
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Remember the Kingdoms?
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Characteristics of Plants

• Eukaryotic cells
• Cells have cell walls that contain cellulose
• Cells have numerous organelles
• Lack mobility
• Can undergo photosynthesis (autotrophs)

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Evolution of Plants Onto Land

• To make the transition to land, plants had to
  adapt and undergo major modifications
• Supportive structure ? stems roots
• Anchoring structure ? roots
• Transport system ? vascular system
• Means to Reduce Water Loss ? cuticle (leaf)
• Means to Exchange Gases ? stomata (leaf)
• Reproductive Structures For Dry Conditions ?
  spores, pollen, flowers, fruit, seeds

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IMPORTANCE OF PLANTS

• Plants are the Base of Food Chain ? Producers!!
• Photosynthesis is the creation of food energy
  from sunlight, CO2, and water
• This is the only source of energy for all living
  things!
• Recall
• Sunlight CO2 H2O ? C6H12O6 O2

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IMPORTANCE OF PLANTS (Cont)

• Plants Provide SHELTER
• Animals use plants as protection from the
  elements and predators!
• Plants Create the PHYSICAL ENVIRONMENT of the
  Ecosystem
• Animals have evolved to use the habitat and
  conditions created by plant life to survive!

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IMPORTANCE OF PLANTS (Cont)

• Importance of Plants to Humans
• Food Food Processing
• Energy (Fires)
• Clothing
• Construction
• Medicine, etc.

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PLANTS BIODIVERSITY

• Plants support all the animal species living in
  an ecosystem
• 1 plant species supports an average of 50
  different animal species!!
• 300 000 plant species support 10 million animal
  species
• As many as ¼ of the worlds plant species are
  endangered! (Science)

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Human Activity Plants

• Deforestation
• Agriculture
• Segmentation of Habitat
• Pollution
• Invasive Species (40 of all extinctions)
• Monocultures

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Graphic Organizer

• You have the rest of the class to work on this
  assignment
• It is due on Monday, Jan. 12th!!