GlossariesGCSE GlossariesGCSE Biology GlossaryMetabolism

Metabolism - GCSE Biology Definition

Reviewed by: Lára Marie McIvor

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Metabolism is the sum of all chemical reactions that take place in the cells of living organisms to keep them alive and functioning. It involves processes that break down molecules from the food we eat to release energy, which is used by the body for growth, movement, and repair. Metabolism also includes reactions that build up molecules the body needs, such as proteins and DNA. It is crucial for maintaining the body’s health and energy balance.

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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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