plants l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Plants PowerPoint Presentation
Download Presentation
Plants

Loading in 2 Seconds...

play fullscreen
1 / 13

Plants - PowerPoint PPT Presentation


  • 456 Views
  • Uploaded on

Plants. Read pg 398-420, 470-489 HW 418 #1-18 HW 492 #1-20, 26 Fruit homework (you’ll see). Characteristics. Most plants are green due to their chlorophyll. All contain cell walls made of cellulose. Plants are autotrophic, producing their own energy from sunlight. 2 major categories:

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Plants' - EllenMixel


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
plants

Plants

Read pg 398-420, 470-489

HW 418 #1-18

HW 492 #1-20, 26

Fruit homework (you’ll see)

characteristics
Characteristics
  • Most plants are green due to their chlorophyll.
  • All contain cell walls made of cellulose.
  • Plants are autotrophic, producing their own energy from sunlight.
  • 2 major categories:
    • Gymnosperms: early seed plants, flowerless
    • Angiosperms: flowering plants
reviewing cell anatomy
Reviewing cell anatomy
  • Unique parts:
    • Cellulose cell wall
    • Large vacuole
    • chloroplasts
evolution
Evolution
  • BryophytesSeedless vascular plantsgymnospermsangiosperms
    • Bryophytes are small leafy or flat plants that are evolutionarily the transition between green algae to vascular plants
      • Ex: some mosses
    • Seedless vascular plants are mainly roots & shoots
      • Ex: Ferns
    • Gymnosperms produce seeds
      • Ex: Conifer trees (pine trees)
gross anatomy
Gross Anatomy
  • Major tissues in plants:
    • Roots, stems, leaves, and sometimes flowers
    • Xylem and phloem
      • Xylem transports water along a plant stem
      • Phloem transports foods/nutrients
    • Stoma
      • Specialized cells in leaves that open and close to allow gas exchange.
shoots roots
Shoots & Roots
  • Roots
    • Anchor
    • Uptake water and minerals/nutrients
    • 2 types: Tap roots, fibrous roots
  • Stems
    • Where shoots and buds arise from. Lateral and vertical expansion of the plant.
    • Provides support and transfers uptake from roots to the rest of the plant.
  • Leaves
    • Main food production. Broad structures capture sunlight.
    • Often waxy to prevent water loss.
    • Flowers are considered specialized shoots.
seeds
Seeds
  • What is a seed?
    • A seed is a mature ovule containing an embryo.
  • Gymnosperm means “naked seed” and these are the first plants to produce seeds evolutionarily.
  • Pollination is the transference of a male gametophyte (pollen) to a female gametophyte (ovule) and fertilization results in a seed.
flowering plants
Flowering plants
  • Angiosperms belong to the phylum Anthophyta.
  • Split into two major categories: monocots and eudicots.
  • Fruits and seeds use a variety of dispersion methods:
    • Animals
    • Water
    • wind
monocot vs dicot
Monocot vs Dicot
  • Monocots are plants with one cotyledon (or seed-leaf), triplet flowers, and parallel veins.
    • Good examples of monocots are:
      • Grasses
      • True grains (rice, wheat, corn)
      • Palm trees, banana trees
      • Onion family (onion and garlic
  • Eudicots are plants with 2 (di=two) cotyledons, flowers in multiples of 4/5, and branched veins.
    • Most other flowering plants are eudicots.
2 phase life cycle
2 phase life cycle
  • All plants undergo an alternation of generations.
    • A switch from diploid (2n) generation to haploid (n) generation where structures differ.
life spans
Life Spans
  • Another way to classify plants is the length of time they live:
    • Annuals: Plants that live and die in one year or growing season. Most vegetables and flowers are annuals.
    • Biennials: These plants complete a lifecycle in 2 years. Carrots, beats, and some flowers are biennials.
    • Perennials: These plants continue to grow year after year. Trees are good examples of perennial plants.
fruits
Fruits!
  • 1. apples,2. oranges,3. peaches,4. bananas,5. berries - i.e. strawberries, raspberries, blueberries, etc.6. pears7. any fruit not listedextras -kiwis, cantaloupes, melons, papayas, pineapples, red/green peppers, avocados
slide13
Other things:
    • Plant defense
    • Special structures (thorns etc)
    • Hormones
    • Flower structure
    • Plant diversity
    • Fruit
    • Agriculture/human benefits