What is the original source of electrons used to neutralize the special pair in photosystem II?

Question

Quizplus · Accepted Answer

The original source of electrons used to neutralize the special pair in photosystem II is H2O. In the light-dependent reactions of photosynthesis, water molecules are split into oxygen, protons, and electrons. The electrons are transported through the electron transport chain and used to neutralize the special pair in photosystem II, allowing for the continuous flow of electrons and the production of ATP and NADPH.

What Is the Original Source of Electrons Used to Neutralize