Resynthesis of ATP
Biology: AQA A Level, topic 1.6.3
Resynthesis of ATP
Like most chemical reactions, the hydrolysis of ATP to ADP is reversible.
ATP resynthesis reaction
- The equation for the resynthesis of ATP is:
- ADP + Pi (+ energy) → ATP + H2O
- ATP is resynthesised by the condensation of ADP and an inorganic phosphate.
- This reaction is catalysed by the enzyme ATP synthase during photosynthesis or respiration.
Formation of ATP requires energy
- Cells rely on the regeneration of ATP just as people rely on the regeneration of spent money through some sort of income.
- Since ATP hydrolysis releases energy, ATP regeneration must require an input of energy (just like earning money requires hard work!).
Test yourself on Resynthesis of ATP
ATP is resynthesised by what type of reaction between ADP and Pi?
Which enzyme is used during the resynthesis of ATP?