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Urea - GCSE Biology Definition

Reviewed by: Lára Marie McIvor

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Urea is a waste product formed in the liver as a result of breaking down proteins. It is a chemical compound that helps the body get rid of excess nitrogen, which can be harmful if it builds up. Urea is carried by the blood to the kidneys, where it is filtered out and mixed with water to form urine. This urine is then eliminated from the body through urination. Understanding how urea is processed and removed in topics related to excretion and the urinary system in GCSE Biology is important in studying how the human body maintains balance and stays healthy.

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Lára Marie McIvor

Reviewer: Lára Marie McIvor

Expertise: Biology, Psychology & Sociology Subject Lead

Lára graduated from Oxford University in Biological Sciences and has now been a science tutor working in the UK for several years. Lára has a particular interest in the area of infectious disease and epidemiology, and enjoys creating original educational materials that develop confidence and facilitate learning.

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