Energy & ATP: Synthesis of ATP

Conversion of ATP to A[blank_start]D[blank_end]P is r[blank_start]eversible[blank_end]; energy can be used to add an [blank_start]inorganic[blank_end] phosphate to A[blank_start]D[blank_end]P to re-form A[blank_start]T[blank_end]P

Synthesis of ATP is a [blank_start]condensation[blank_end] reaction catalysed by ATP [blank_start]synthase[blank_end]

The addition of a [blank_start]phosphate[blank_end] molecule can occur in 3 ways: - in [blank_start]chlorophyll[blank_end]-containing plant cells during [blank_start]photosynthesis[blank_end] (photophosphorylation) - in plant & [blank_start]animal[blank_end] cells during respiration (oxidative phosphorylation) - in plant & animal cells when phosphate groups are [blank_start]transferred[blank_end] from donor molecules to [blank_start]ADP[blank_end] (substrate-level phosphorylation)