CHARACTERISTICS OF LIVING ORGANISMS

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  • LIVING ORGANISMS
    • MR GRENSH
      • reproduction
      • growth
      • excretion
      • respiration
      • sensitivity
      • movement
      • growth
    • ANIMALS
      • multicellular
      • store carbohydrateas glycogen
    • PLANTS
      • multicellular
      • store carbohydrateas cellulose
    • FUNGI
      • some are multicellular, others are unicellular
      • store carbohydrateas glycogen
      • cell walls made of chitin
      • body of unicellular fungi is organised into mycelium (mass of threads) and the hyphae (threads) contain many nuclei
      • feed by saprotrophic nutrition: secrete digestive enzymes onto food, then absorb it
    • PROTOCTISTS
      • unicellular
      • some are protozoans (look like animal cells) e.g. amoeba
      • some are algae (have chloroplasts, photosynthesise, are more like plant cells) e,g, chlorella
    • BACTERIA
      • unicellular
      • contain plasmids:circular chromosomes of DNA
    • VIRUSES
      • parasitic
      • can only reproduce inside living cells
      • no cellular structure:protein coat around either DNA or RNA

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