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Home > Biology > Animal survival > Water and waste


Water and waste


For your biology exam you should be able to

  • identify the ways in which a mammal gains and loses water
  • state that the kidneys are the main organ for regulating water content
  • explain the role of ADH in the regulation of water balance
  • identify the positions and state the functions of the following; kidneys, renal arteries, renal veins, ureter, bladder, nephron; glomerulus; Bowman's capsule; blood capillaries; collecting duct
  • state the essential functions of the kidney are filtration and reabsorption
  • explain the process of urine production using a simple diagram of a nephron to include labelling the main structures
  • state that urea is a waste product removed in urine, where urea originates from and how it is transported to the kidneys.
  • describe the relative benefits and limitations of replacement and "artificial" kidneys



Class Clips

Video clip on how the kidneys work.

Click here to see the anatomy and physiology of the kidneys.


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Test out your knowledge of biology with Mia Cadaver's biology game - it's serious fun!

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