Introduction to Plants - Basic Overview

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    Introduction to Plants - Basic Overview - Presentation Transcript

    1. 14.0 Describe Principles of Plant Growth Production 14.2 Explore methods of classifying plants. Introduction To Plants
    2. Two Groups of Plants
      • Nonvascular - most primitive, rely on water coming to them.
      • Vascular - contain vascular tissue that transports water.
      • And Fungi – which are not plants
    3. And Non Plants
      • Fungi -
        • most primitive; do not have
        • true roots, leaves,
        • stems
        • do not contain chlorophyll in their cells
        • Obtain their food from other sources – heterotrophs or parasites
              • Reproduce asexually - spores
              • Example:
              • Mushrooms, molds, puffballs, lichens
    4. Mushrooms and Toadstools Found in damp, shady places Very short lifespan Most are poisonous (if it is red it is poison) Some grown for commercial use
      • fungi which grow in symbiosis with algae, forming a structure in which the algal cells are imbedded in the fungal structure (hyphae)
      • the algae gets water and minerals from the fungus
      • the fungus gets food from the algae which is able to conduct photosynthesis
      • found on bare rocks in a crust like, shrub like, or leaf like form
      • can be used to make perfume or for dyes
      Lichens
    5. Non-vascular Plant
      • Nonvascular
        • no vascular tissue
        • no leaves, stems, or roots
        • low growing, close to the ground
        • reach maturity quickly
        • can grow in varying climates
        • Produce food in every cell
    6. Mosses
      • a flowerless plant
      • lies flat and grows in moist areas (carpet like appearance)
      • reproduces sexually
      • Economics - used by gardeners as a mulch because it helps keep moisture close to the plants roots.
    7. Algae
      • different shapes, sizes, and colors
      • simple plants that contain photosynthetic pigments (chlorophyll)
      • found in wet soil
    8. Vascular Plants
        • has vascular tissue – tissue that moves food and nutrients around plant
        • leaves, stems, and roots
        • produces food for plant only in leaves
      • May have a long life span –
      • one season or many
      • grows tall and wide
      • Has chlorophyll for photosynthesis
              • examples: ferns, trees, grasses and flowering
              • plants
    9. Two Groups of Vascular Plants
      • Gymnosperms - naked seed
      • Angiosperms -  vessel seed
    10. Gymnosperm vs. Angiosperm
      • Gymnosperm -
        • expose their seeds
        • examples-pine, spruce, ferns and conifers trees
      • Angiosperm
        • produce and store their seeds in an ovary – often called fruit
        • examples - roses, elm trees, geraniums, apple trees, etc.
    11. Subclasses of Angiosperms
      • A. Monocots –
        • single seed leaf (cotyledon)
        • flowers/petals grow in groups of three
        • leaves have parallel veins
      • Flowers often small, overlooked
      • Usually grow for only one year
      • Examples: corn, grasses, onions, lilies and many grains
    12. Dicots
        • two seed leaves (cotyledons)
        • flowers/petals grow in groups of four or five
        • leaves have network veins that branch out
        • Examples: trees, sunflower, beans, pumpkins and clover .
      Greatest number of plants are dicots Tend to live a long time – one season or many Produce food, clothing, housing
    13. Review: Vascular or Non-vascular? Moss
    14. Review: Vascular or Non-vascular? flowering tree
    15. Review: Gymnosperm or Angiosperm? Rose
    16. Review: Gymnosperm or Angiosperm? Pine Tree
    17. Review: Monocot or Dicot? Corn
    18. Review: Monocot or Dicot? Bean

    + Catherine PattersonCatherine Patterson, 2 years ago

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