The five kingdoms

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Created by
Katie

Cards (9)

  • The five kingdoms
    • Prokaryote
    • Protist
    • Fungi
    • Plants
    • Animals
  • Prokaryotes
    • Unicellular
    • No nucleus, or other membrane organelles, ring of DNA, small ribosomes.
    • No visible feeding mechanism, nutrients absorbed through cell wall or produced internally by photosynthesis.
  • protist
    • Unicellular
    • Have a nucleus and other membrane bound organelles.
    • Have chloroplasts
    • Some are sessile, others move by cilia, flagella.
    • Nutrients acquired by photosynthesis (autotrophic), ingestion of other organisms (heterotrophic)
  • fungi
    • Unicellular or multicellular
    • A nucleus and other membrane bound organelles and a cell wall composed of chitin.
    • No chloroplasts or chlorophyll.
    • No mechanisms for locomotion.
    • Nutrients acquired by absorption (saprophytic)
    • Store food as glycogen.
  • Plants
    • Multicellular
    • A nucleus and other membrane bound organelles, cell wall made of cellulose.
    • Contain chlorophyll.
    • Most don't move.
    • Nutrients acquired by photosynthesis (autotrophic)
    • Store food as starch.
  • Animals
    • Multicellular
    • A nucleus and other membrane bound organelles, no cell wall.
    • No chloroplasts.
    • Move with aid of cilia, flagella.
    • Nutrients aquired by ingestion (heterotrophic)
    • Store food as glycogen.
  • Changes to classification system
    • Originally classification systems were based on observable features.
    • Study of genetics, now able to study the evolutionary relationships between organisms, these link can be used to classify organisms.
    • When organisms evolve their internal and external features change, as does their DNA. Because their DNA determines the proteins that are made which determines the organisms characteristics.
    • By comparing similarities in DNA and the proteins of different species, can find evolutionary relationships.
  • Archaebacteria
    = Can live in extreme environments. Including hot thermal vents, anaerobic conditions and acidic environments.
    • Now part of 6 kingdom classification.
  • Three domains
    • Bacteria
    • Archaea
    • Eukarya