Kingdom Plantae
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Kingdom Plantae. What Is a Plant?. Multicellular eukaryotes that are photosynthetic autotrophs Cell walls made of cellulose Store surplus carbohydrates as starch Mostly terrestrial . Obstacles Plants Overcome . Absorb Minerals Conserve Water Cuticle Stomata Guard Cells

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What is a plant
What Is a Plant?

  • Multicellular eukaryotes that are photosynthetic autotrophs

  • Cell walls made of cellulose

  • Store surplus carbohydrates as starch

  • Mostly terrestrial


Obstacles plants overcome
Obstacles Plants Overcome

  • Absorb Minerals

  • Conserve Water

    • Cuticle

    • Stomata

    • Guard Cells

  • Reproduce on Land


A vascular system enables plants to thrive on land
A Vascular System Enables Plants to Thrive on Land

  • Most plants need a “plumbing” system to transport water, minerals and nutrients. This system is known as the VASCULAR SYSTEM.


Divisions of living plants are divided into nonvascular and vascular
Divisions of Living Plants Are Divided into Nonvascular and Vascular

  • There are 3 divisions of nonvascular plants

    • Hepatophyta – the Liverworts

      • Simplest of plants (gametophytes are dominate

      • Flat leafy body lacking cuticle, stomata, roots, stems or leaves

    • Anthocerophyta – the Hornworts

      • Dominate gametophyte and have stomata

    • Bryophyta – the mosses

      • Small, most have simple vascular tissue

      • Sporophyte with slender stalk and spore capsule

      • “leafy” green gametophyte that lacks roots, stems and leaves


Alternation of generations
Alternation Of Generations Vascular

  • Occurs in life cycle of all plants

  • One generation is a multicellular haploid condition and the next is a multicellular diploid condition


Gametes
Gametes Vascular

  • Archegonia

    • Produce eggs

  • Antheridia

    • Produce sperm

  • When water is available, sperm swim to the eggs


Features of vascular plants
Features of Vascular Plants Vascular

  • Dominate sporophyte

  • Specialized conducting cells

  • Distinctive body form

    • Meristem

      • Shoots

      • Roots



Evolution of the seed
Evolution of the Seed Vascular

  • There are 5 phyla of living seed plants. Four of these phyla are collectively known as GYMNOSPERM.

  • The other phyla is ANGIOSPERMS.


  • Seed plants produce two kinds of gametophytes. Vascular

    • Microgametophyte – produce male

    • Megagametophyte – produce female – These develop from a megaspore within the ovule.

  • A pollen grain consists of only a few haploid cells surrounded by a thick protective wall.


Pollination
Pollination Vascular

  • Wind

  • Insects

  • animals


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