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Plants by wuxiangyu

VIEWS: 5 PAGES: 27

									Plants

   Overview
   MUST BRING IN A FLOWER
   TOMORROW!!!!
Nonvascular Plants

              Hornwort
              Usually small plants
              Everything
               transported by
               diffusion and
               osmosis
Life Cycle of Nonvascular
Plants (MOSS)
Vascular Plants (Seedless)

               Some early vascular
                plants only
                reproduce with
                spores and not
                seeds
               Ferns are examples
                of these
Spores (how a fern
reproduces)
Life Cycle
Vascular (seed) plants

  Two types
    Gymnosperms
    Angiosperms
      Monocots
      Dicots
Gymnosperms

 Plants that make
  seeds that do not
  develop into a fruit
 Usually bear pollen
  or seed cones
Gymnosperm Life Cycle
Angiosperms

  Flowering Plants and
   trees
  More than 230,000
   species and 300
   families!!!
Monocots

  Seeds produce a
   singe cotyledon
   (seed leaf)
  Parallel veins
  Flowers usually in
   multiples of 3’s
  Ex. Grasses
Dicots

  Flowering plants
   produce 2 cotyledons
   (seed leaves)
  Leaf veins form a
   network
  Flower parts in
   multiples of 4 or 5
Plant transport

  Water and nutrients
   transfer through the
   xylem
  Red circles in the
   middle
Transpiration

  Water lost through
   the stomates
  Guard cells help to
   regulate the loss of
   water
Translocation

  Phloem moves sugar
   made in the leaves
   or roots (source) to a
   storage place (sink)
  Process is called
   translocation
  Green cells
FLOWER POWER

• Why are angiosperms so successful and
  diverse?
• What are the structures of the flower?
• How are the structures best suited for
  their functions?

• USE YOUR TEXTBOOK!!!
Flowers

  4 main parts
      Petals (together make the corolla)
      Sepals (together make the calyx)
      Stamens (male parts; produce pollen)
      Pistils (female parts)
         Stigma
         Style
         Ovary
Fruits

  We think of it as yummy, healthy food
  Botanist definition is ripened ovary of a
   flower
  Peas, eggplant, tomatoes, cucumber,
   squash, peppers are all really fruit
Simple Fruits

  Created from a
   single ripened ovary
  2 Types
  Dry
  Fleshy
Aggregate Fruits

  Come from a
   single flower
   but multiple
   ovaries
   developing in
   that flower
Multiple Fruit

  Formed from several
   flowers of each
   having an individual
   ovary
Seeds Monocot vs. Dicot
Questions to answer

 1. How is a flower
    like a baboon’s
    butt?
 2. How is plant
    reproduction
    similar to animal
    reproduction?

								
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