Substrate Level Phosphorylation

Substrate - Level Phosphorylation

ATP synthesis occurs in two ways. 

In the first, substrate level phosphorylation a phosphate transfers from organic compounds to ADP forming ATP.

An enzyme that binds both the substrate and ATP , catalyzes to transfer.

The energy of substrate level phosphorylation comes from the phosphate bond of the substrate.

Some energy escapes as heat when the phosphate group transfers.