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Excretory system

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  • They are waste materials formed inside inside the body cells and carried by the blood to special organs to get rid of them.
    Excretory materials (cell wastes)
  • The organs that get rid of carbon dioxide and water vapour.
    The two lungs.
  • The organs that get rid of urea and uric acid.
    The two kidneys.
  • The skin secretes ................from special glands in the skin called ...................
    sweat - sweat glands.
  • The organs that get rid of excess salts and excess water.
    Skin and the two kidneys.
  • Give reason: Body cells release their wastes into blood.
    Because blood Carries these wastes to special organs to get rid of them.
  • Give reason: The skin is one of the excretory materials.
    Because it gets rid of some excess salt and excess water in the form of sweat.
  • The indigested food stored in the large intestine until they pass out of the body.
    Solid wastes.
  • The excretory materials are ...................... , .................. and ...................
    Carbon dioxide , Nitrogenous wastes and excess salts and water.
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