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ATP Synthesis

AQA AS-level BiologyNucleic AcidsLesson 11 of 18

ATP is synthesised by the enzyme ATP synthase in a condensation reaction.

ADP + Pi + energy → ATP + H2O

The reaction is called phosphorylation and ATP synthesis is the reverse of the hydrolysis reaction.

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Key terms in this lesson

condensation reaction
A reaction that joins two molecules together with a covalent bond, with the elimination of a water molecule.
hydrolysis
The breaking of a covalent bond within a molecule using a water molecule.
ATP
Adenosine triphosphate, a nucleotide that acts as the immediate energy source in cells, releasing energy when hydrolysed to ADP and phosphate.

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