Question

which specific process in the light - dependent reactions produces oxygen and hydrogen ions?
the formation of nadph
the production of atp
the splitting of water
the excitation of electrons in photosytem i

Explanation:

In the light - dependent reactions of photosynthesis, when water (\(H_2O\)) is split (\(2H_2O
ightarrow4H^{+}+O_2 + 4e^{-}\)), oxygen (\(O_2\)) is released as a by - product and hydrogen ions (\(H^{+}\)) are produced. The formation of NADPH (\(NADP^{+}+H^{+}+2e^{-}
ightarrow NADPH\)) mainly involves the reduction of \(NADP^{+}\). The production of ATP (\(ADP + Pi
ightarrow ATP\)) is related to the proton - motive force. The excitation of electrons in photosystem I is about the transfer of energy and electrons in the electron transport chain.

Answer:

the splitting of water