Variety of Living Organisms

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  • Variety of Living Organisms
    • Plants
      • Multicellular Organisms
        • Cells have cellulose walls
          • Store carbohydrates as starch and sucrose
      • Contain chloroplasts
        • Help carry out photosyntheis
      • Examples: flowers/Pine Tree/Herbaceous Legume
    • Animals
      • Multicellular organisms
        • Cells don't contain chloroplasts
          • Photosynthesis can't take place
          • No cell walls
      • Have nervous coordination
      • Are able to move to one place to another
      • Store carbohydrate as glycogen
      • Example: mammals
    • Fungi
      • Body - mycelium made from thread-like structures called hyphae
        • Hyphae
          • Contain many nuclei
      • Some are single-celled
        • Cell walls made of chitin
      • Feed by extracellular secretion of digestive enzymes onto food material and absorption of organic products
        • Known as saprotrophic nutrition
      • Store carbohydrates as glycogen (same as animals)
    • Bacteria
      • Microscopic single celled organisms
        • Have cell wall,cell membrane, cytoplasm and plasmids
          • NO NUCLEUS.
            • Contain a circular chromosome of DNA
      • Some carry out photosynthesis
        • Mostly feed off living/dead organisms
      • Example: Lactobacillus bulgaricus
    • Protoctists
      • Microscopic single celled organisms (like bacteria)
      • Amoeba - lives in pond water
        • Has features of an animal cell
      • Chlorella - have chloroplasts and are like plants
      • Pathogenic example: Plasmodium - causes malaria
    • Viruses
      • Small particles
        • Particles are parasitic
          • Can only reproduce inside living cells
            • Infect every type of organism
      • No cellular structure
        • Have protein coat
      • Come in different shapes and sizes
      • Contain one type of nucleic acid
        • Either DNA or RNA
      • Examples: Influenza virus/HIV virus that causes AIDS


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