Cell Organisation

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  • Cell Organisation
    • Large Multi-cellular Organisms
      • Made up of Organ Systems
      • Differentiation - cells become specialised for a particular job
      • Specialised cells form tissues
        • Which form Organs
          • Which form Organ Systems
    • Tissue - A group of similar cells that work together to carry out a particular function.
      • E.g. Muscular tissue
        • Contracts to move whatever it's attached to
      • E.g. Glandular tissue
        • Makes and secretes chemicals like enzymes and hormones
      • E.g. Epithelial tissue
        • Covers some parts of the body
    • Organs - Group of different tissues that work together to perform a certain function
      • E.g. Stomach
        • Muscular tissue - moves stomach wall to churn up food
        • Glandular tissue - makes digestive juices to digest food
        • Epithelial tissue - covers outside and inside of stomach
    • Organ System - group of organs working together to perform a particular function
      • E.g. Digestive System - made up of these organs
        • Glands - produce digestive juices
        • Stomach & Small Intestine - digest food
        • Liver - produces bile
        • Small Intestine - absorbs soluble food molecules
        • Large Intestine - absorbs water from undigested food


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