B2 - tissues and organs

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  • Created by: Charlotte
  • Created on: 08-04-13 17:14
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  • Tissues + Organs
    • Tissues
      • During the development of mutlicellular organisms, the cells differenciate. A tissue is a group of cells with a similar structure and function
      • Animal tissues
        • muscle tissue which can contract to bring about movement
        • glandular tissue, to produce substances such as enzymes or hormones
        • epithelial tissue, which covers some parts of the body
      • Plant tissues
        • epidermal tissue which covers the plant
        • mesophyll which can photosynthesise
        • xylem and phloem which transport substances around the plant
    • Organs
      • Organs are made of tissues
      • The stomach (which is an organ) is made up of:
        • muscular tissue to churn the  stomach contents
        • glandular tissue to produce the digestive juices
        • epithelial tissue to cover the outsde and the inside of the stomach
      • The leaf, stem and root are plant organs whcih contain epidermal tissue, mesophyll, xylem and phloem.
      • Groups of organs form organ systems to perform a  particular  function
      • The digestivesystem has several organs, including the small intestine

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