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Kingdom Plantae

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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Kingdom Plantae

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  1. Kingdom Plantae

  2. What Is a Plant? • Multicellular eukaryotes that are photosynthetic autotrophs • Cell walls made of cellulose • Store surplus carbohydrates as starch • Mostly terrestrial

  3. Obstacles Plants Overcome • Absorb Minerals • Conserve Water • Cuticle • Stomata • Guard Cells • Reproduce on Land

  4. 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.

  5. 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

  6. Alternation Of Generations • Occurs in life cycle of all plants • One generation is a multicellular haploid condition and the next is a multicellular diploid condition

  7. Gametes • Archegonia • Produce eggs • Antheridia • Produce sperm • When water is available, sperm swim to the eggs

  8. Features of Vascular Plants • Dominate sporophyte • Specialized conducting cells • Distinctive body form • Meristem • Shoots • Roots

  9. Life Cycle of a Fern

  10. Evolution of the Seed • There are 5 phyla of living seed plants. Four of these phyla are collectively known as GYMNOSPERM. • The other phyla is ANGIOSPERMS.

  11. Seed plants produce two kinds of gametophytes. • 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.

  12. Pollination • Wind • Insects • animals

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