Excretion and osmoregulation

  • A. Boyce
  • C. M. Jenking
Part of the Foundations of Biology book series (FOUNDBIO)


Excretion, the elimination of metabolic waste products, is a vital homeostatic process. The main excretory materials in animals are carbon dioxide and water from respiration, and nitrogen-containing wastes derived from the breakdown of surplus protein. In certain circumstances these materials may perform useful functions; for example, an animal living in hot dry conditions normally uses metabolic water to maintain its body’s water balance.


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Copyright information

© A. Boyce and C. M. Jenking 1980

Authors and Affiliations

  • A. Boyce
    • 1
  • C. M. Jenking
    • 2
  1. 1.Biology departmentMaynard SchoolExeterUK
  2. 2.Maynard SchoolExeterUK

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