Nitrogenous Wastes | Osmotic Regulation and Excretion | Unit 7. Animal Structure and Function

Описание: Chapter: Nitrogenous Wastes
Collection: Osmotic Regulation and Excretion
Unit 7. Animal Structure and Function
Book: Biology


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Ammonia is the waste produced by metabolism of nitrogen-containing compounds like proteins and nucleic acids. While aquatic animals can easily excrete ammonia into their watery surroundings, terrestrial animals have evolved special mechanisms to eliminate the toxic ammonia from their systems. Urea is the major byproduct of ammonia metabolism in vertebrate animals. Uric acid is the major byproduct of ammonia metabolism in birds, terrestrial arthropods, and reptiles.


00:00 Nitrogenous Wastes
01:27 Nitrogenous waste in terrestrial animals: the urea cycle
02:56 Evolution connection
03:25 Nitrogenous waste in birds and reptiles: uric acid
04:13 Everyday connection
04:53 Section summary

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