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Atp - GCSE Biology Definition

Reviewed by: Lára Marie McIvor

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ATP, or adenosine triphosphate, is a small molecule that acts as the primary energy carrier in cells. It provides energy for biological processes such as muscle contraction, nerve impulses, and the synthesis of new molecules. ATP is produced during cellular respiration in the mitochondria and releases energy when it is broken down into ADP (adenosine diphosphate) and a phosphate group. GCSE Biology students learn that this energy transfer is essential for maintaining cellular functions.

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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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