AP BIOLOGY

Detailed explanation-1: -Oxygen and hydrogen ions are also formed from the splitting of water. To replace the electron in the reaction center, a molecule of water is split. This splitting releases an electron and results in the formation of oxygen (O2) and hydrogen ions (H+) in the thylakoid space.

Detailed explanation-2: -The energy generated by the hydrogen ion stream allows ATP synthase to attach a third phosphate to ADP, which forms a molecule of ATP in a process called photophosphorylation.

Detailed explanation-3: -Hydrogen Ion Movement and. ATP Formation. thylakoid membrane. As the ions pass through, ATP synthase rotates. The rotation creates the energy needed to bind ADP and a phosphate group together to produce ATP.

Detailed explanation-4: -In non-cyclic photophosphorylation the photolysis of water produces electrons that generate a proton motive force which is used to produce ATP, the electrons finally being used to reduce NADP+ to NADPH.